// Copyright (c) 2015-2018 Khronos Group. This work is licensed under a // Creative Commons Attribution 4.0 International License; see // http://creativecommons.org/licenses/by/4.0/ [[drawing]] = Drawing Commands _Drawing commands_ (commands with ftext:Draw in the name) provoke work in a graphics pipeline. Drawing commands are recorded into a command buffer and when executed by a queue, will produce work which executes according to the bound graphics pipeline. A graphics pipeline must: be bound to a command buffer before any drawing commands are recorded in that command buffer. [open,refpage='VkPipelineInputAssemblyStateCreateInfo',desc='Structure specifying parameters of a newly created pipeline input assembly state',type='structs'] -- Each draw is made up of zero or more vertices and zero or more instances, which are processed by the device and result in the assembly of primitives. Primitives are assembled according to the pname:pInputAssemblyState member of the sname:VkGraphicsPipelineCreateInfo structure, which is of type sname:VkPipelineInputAssemblyStateCreateInfo: include::../api/structs/VkPipelineInputAssemblyStateCreateInfo.txt[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to an extension-specific structure. * pname:flags is reserved for future use. * pname:topology is a elink:VkPrimitiveTopology defining the primitive topology, as described below. * pname:primitiveRestartEnable controls whether a special vertex index value is treated as restarting the assembly of primitives. This enable only applies to indexed draws (flink:vkCmdDrawIndexed and flink:vkCmdDrawIndexedIndirect), and the special index value is either 0xFFFFFFFF when the pname:indexType parameter of fname:vkCmdBindIndexBuffer is equal to ename:VK_INDEX_TYPE_UINT32, or 0xFFFF when pname:indexType is equal to ename:VK_INDEX_TYPE_UINT16. Primitive restart is not allowed for "`list`" topologies. Restarting the assembly of primitives discards the most recent index values if those elements formed an incomplete primitive, and restarts the primitive assembly using the subsequent indices, but only assembling the immediately following element through the end of the originally specified elements. The primitive restart index value comparison is performed before adding the pname:vertexOffset value to the index value. .Valid Usage **** * [[VUID-VkPipelineInputAssemblyStateCreateInfo-topology-00428]] If pname:topology is ename:VK_PRIMITIVE_TOPOLOGY_POINT_LIST, ename:VK_PRIMITIVE_TOPOLOGY_LINE_LIST, ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, ename:VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY, ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY or ename:VK_PRIMITIVE_TOPOLOGY_PATCH_LIST, pname:primitiveRestartEnable must: be ename:VK_FALSE * [[VUID-VkPipelineInputAssemblyStateCreateInfo-topology-00429]] If the <> feature is not enabled, pname:topology must: not be any of ename:VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY, ename:VK_PRIMITIVE_TOPOLOGY_LINE_STRIP_WITH_ADJACENCY, ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY or ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY * [[VUID-VkPipelineInputAssemblyStateCreateInfo-topology-00430]] If the <> feature is not enabled, pname:topology must: not be ename:VK_PRIMITIVE_TOPOLOGY_PATCH_LIST **** include::../validity/structs/VkPipelineInputAssemblyStateCreateInfo.txt[] -- [open,refpage='VkPipelineInputAssemblyStateCreateFlags',desc='Reserved for future use',type='enums'] -- include::../api/flags/VkPipelineInputAssemblyStateCreateFlags.txt[] sname:VkPipelineInputAssemblyStateCreateFlags is a bitmask type for setting a mask, but is currently reserved for future use. -- [[drawing-primitive-topologies]] == Primitive Topologies [open,refpage='VkPrimitiveTopology',desc='Supported primitive topologies',type='enums'] -- _Primitive topology_ determines how consecutive vertices are organized into primitives, and determines the type of primitive that is used at the beginning of the graphics pipeline. The effective topology for later stages of the pipeline is altered by tessellation or geometry shading (if either is in use) and depends on the execution modes of those shaders. Supported topologies are defined by elink:VkPrimitiveTopology and include: include::../api/enums/VkPrimitiveTopology.txt[] -- Each primitive topology, and its construction from a list of vertices, is summarized below with a supporting diagram. In each diagram, the numbered points show the sequencing of vertices in order within the vertex arrays; however the positions chosen are arbitrary and for illustration only. Vertices connected with solid lines belong to the main primitives. In the primitive types with adjacency, the vertices connected by dashed lines are the adjacent vertices that are accessible in a geometry shader. [NOTE] .Note ==== The terminology {ldquo}vertex [eq]#i# {rdquo} means {ldquo}the vertex with index [eq]#i# in the ordered list of vertices defining this primitive{rdquo}. ==== [NOTE] .Note ==== Depending on the <>, a _polygon primitive_ generated from a drawing command with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN, ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP, ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY, or ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY is rendered in one of several ways, such as outlining its border or filling its interior. The order of vertices in such a primitive is significant during <> and <>. ==== === Point Lists A series of individual points are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_POINT_LIST. Each vertex defines a separate point. .Point Lists image::images/primitive_topology_point_list.svg[align="center"] === Line Lists Lists of line segments, with each segment defined by a pair of vertices, are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_LINE_LIST. The first two vertices define the first segment, with subsequent pairs of vertices each defining one more segment. If the number of vertices is odd, then the last vertex is ignored. .Line Lists image::images/primitive_topology_line_list.svg[align="center"] === Line Strips A series of one or more connected line segments are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_LINE_STRIP. In this case, the first vertex specifies the first segment's start point while the second vertex specifies the first segment's endpoint and the second segment's start point. In general, vertex [eq]#i# (for [eq]#i > 0#) specifies the beginning of the [eq]##i##th segment and the end of the previous segment. The last vertex specifies the end of the last segment. If only one vertex is specified, then no primitive is generated. .Line Strips image::images/primitive_topology_line_strip.svg[align="center"] === Triangle Lists Lists of separate triangles are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST. In this case, vertices [eq]#3 i#, [eq]#3 i {plus} 1#, and [eq]#3 i {plus} 2# (in that order) determine a triangle for each [eq]#i = 0, 1, ..., n-1#, where there are [eq]#3 n {plus} k# vertices drawn. [eq]#k# is either 0, 1, or 2; if [eq]#k# is not zero, the final [eq]#k# vertices are ignored. .Triangle Lists image::images/primitive_topology_triangle_list.svg[align="center"] === Triangle Strips A triangle strip is a series of triangles connected along shared edges, and is specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP. In this case, the first three vertices define the first triangle, and their order is significant. Each subsequent vertex defines a new triangle using that point along with the last two vertices from the previous triangle. If fewer than three vertices are specified, no primitive is produced. The order of vertices in successive triangles changes as shown in the figure below, so that all triangle faces have the same orientation. .Triangle Strips image::images/primitive_topology_triangle_strip.svg[align="center"] === Triangle Fans A triangle fan is specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN. It is similar to a triangle strip, but changes the vertex replaced from the previous triangle so that all triangles in the fan share a common vertex. .Triangle Fans image::images/primitive_topology_triangle_fan.svg[align="center"] === Line Lists With Adjacency Lines with adjacency are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY, and are independent line segments where each endpoint has a corresponding _adjacent_ vertex that is accessible in a <>. If a geometry shader is not active, the adjacent vertices are ignored. A line segment is drawn from vertex [eq]#4 i {plus} 1# to vertex [eq]#4 i {plus} 2# for each [eq]#i = 0, 1, ..., n-1#, where there are [eq]#4 n {plus} k# vertices. [eq]#k# is either 0, 1, 2, or 3; if [eq]#k# is not zero, the final [eq]#k# vertices are ignored. For line segment [eq]#i#, vertices [eq]#4 i# and [eq]#4 i {plus} 3# vertices are considered adjacent to vertices [eq]#4 i {plus} 1# and [eq]#4 i {plus} 2#, respectively. .Line Lists With Adjacency image::images/primitive_topology_line_list_with_adjacency.svg[align="center"] === Line Strips With Adjacency Line strips with adjacency are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_LINE_STRIP_WITH_ADJACENCY and are similar to line strips, except that each line segment has a pair of adjacent vertices that are accessible in a geometry shader. If a geometry shader is not active, the adjacent vertices are ignored. A line segment is drawn from vertex [eq]#i {plus} 1# vertex to vertex [eq]#i {plus} 2# for each [eq]#i = 0, 1, ..., n-1#, where there are [eq]#n {plus} 3# vertices. If there are fewer than four vertices, all vertices are ignored. For line segment [eq]#i#, vertices [eq]#i# and [eq]#i {plus} 3# are considered adjacent to vertices [eq]#i {plus} 1# and [eq]#i {plus} 2#, respectively. .Line Strips With Adjacency image::images/primitive_topology_line_strip_with_adjacency.svg[align="center"] === Triangle Lists With Adjacency Triangles with adjacency are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY, and are similar to separate triangles except that each triangle edge has an adjacent vertex that is accessible in a geometry shader. If a geometry shader is not active, the adjacent vertices are ignored. Vertices [eq]#6 i#, [eq]#6 i {plus} 2#, and [eq]#6 i {plus} 4# (in that order) determine a triangle for each [eq]#i = 0, 1, ..., n-1#, where there are [eq]#6 n+k# vertices. [eq]#k# is either 0, 1, 2, 3, 4, or 5; if [eq]#k# is non-zero, the final [eq]#k# vertices are ignored. For triangle [eq]#i#, vertices [eq]#6 i {plus} 1#, [eq]#6 i {plus} 3#, and [eq]#6 i {plus} 5# vertices are considered adjacent to edges from vertex [eq]#6 i# to [eq]#6 i {plus} 2#, from [eq]#6 i {plus} 2# to [eq]#6 i {plus} 4#, and from [eq]#6 i {plus} 4# to [eq]#6 i# vertices, respectively. .Triangle Lists With Adjacency image::images/primitive_topology_triangle_list_with_adjacency.svg[align="center"] === Triangle Strips With Adjacency Triangle strips with adjacency are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY, and are similar to triangle strips except that each triangle edge has an adjacent vertex that is accessible in a geometry shader. If a geometry shader is not active, the adjacent vertices are ignored. In triangle strips with adjacency, [eq]#n# triangles are drawn where there are [eq]#2 (n {plus} 2) {plus} k# vertices. [eq]#k# is either 0 or 1; if [eq]#k# is 1, the final vertex is ignored. If there are fewer than 6 vertices, the entire primitive is ignored. .Triangle Strips With Adjacency image::images/primitive_topology_triangle_strip_with_adjacency.svg[align="center"] The table below illustrates the vertices and order used to draw each triangle, and which vertices are considered adjacent to each edge of those triangles. Each triangle is drawn using the vertices whose numbers are in the *1st*, *2nd*, and *3rd* columns under *Primitive Vertices*, in that order. The vertices in the 1/2, 2/3, and 3/1 columns under *Adjacent Vertices* are considered adjacent to the edges from the first to the second, from the second to the third, and from the third to the first vertex of the triangle, respectively. The six rows correspond to six cases: the first and only triangle [eq]#(i = 0, n = 1)#, the first triangle of several [eq]#(i = 0, n > 0)#, _odd_ middle triangles [eq]#(i = 1, 3, 5 ...)#, _even_ middle triangles [eq]#(i = 2, 4, 6, ...)#, and special cases for the last triangle, when [eq]#i# is either even or odd. For the purposes of this table, both the first vertex and first triangle are numbered [eq]#0#. [[trigenadj]] .Triangles generated by triangle strips with adjacency [options="header", cols="2,1,1,1,1,1,1"] |==== | 3+| Primitive Vertices 3+| Adjacent Vertices | Primitive | 1st | 2nd | 3rd | 1/2 | 2/3 | 3/1 | only ([eq]#i = 0, n = 1#) | 0 | 2 | 4 | 1 | 5 | 3 | first ([eq]#i = 0#) | 0 | 2 | 4 | 1 | 6 | 3 | middle ([eq]#i# odd) | [eq]#2 i {plus} 2# | [eq]#2 i# | [eq]#2 i {plus} 4# | [eq]#2 i-2# | [eq]#2 i {plus} 3# | [eq]#2 i {plus} 6# | middle ([eq]#i# even) | [eq]#2 i# | [eq]#2 i {plus} 2# | [eq]#2 i {plus} 4# | [eq]#2 i-2# | [eq]#2 i {plus} 6# | [eq]#2 i {plus} 3# | last ([eq]#i=n-1#, [eq]#i# odd) | [eq]#2 i {plus} 2# | [eq]#2 i# | [eq]#2 i {plus} 4# | [eq]#2 i-2# | [eq]#2 i {plus} 3# | [eq]#2 i {plus} 5# | last ([eq]#i=n-1#, [eq]#i# even) | [eq]#2 i# | [eq]#2 i {plus} 2# | [eq]#2 i {plus} 4# | [eq]#2 i-2# | [eq]#2 i {plus} 5# | [eq]#2 i {plus} 3# |==== [[drawing-primitive-topologies-patches]] === Separate Patches Separate patches are specified with pname:topology ename:VK_PRIMITIVE_TOPOLOGY_PATCH_LIST. A patch is an ordered collection of vertices used for <>. The vertices comprising a patch have no implied geometric ordering, and are used by tessellation shaders and the fixed-function tessellator to generate new point, line, or triangle primitives. Each patch in the series has a fixed number of vertices, specified by the pname:patchControlPoints member of the slink:VkPipelineTessellationStateCreateInfo structure passed to flink:vkCreateGraphicsPipelines. Once assembled and vertex shaded, these patches are provided as input to the tessellation control shader stage. If the number of vertices in a patch is given by [eq]#v#, vertices [eq]#v {times} i# through [eq]#v {times} i {plus} v - 1# (in that order) determine a patch for each [eq]#i = 0, 1, ..., n-1#, where there are [eq]#v {times} n {plus} k# vertices. [eq]#k# is in the range [eq]#[0, v - 1]#; if [eq]#k# is not zero, the final [eq]#k# vertices are ignored. [[drawing-primitive-order]] == Primitive Order Primitives generated by <> progress through the stages of the <> in _primitive order_. Primitive order is initially determined in the following way: . Submission order determines the initial ordering . For indirect draw commands, the order in which accessed instances of the slink:VkDrawIndirectCommand are stored in pname:buffer, from lower indirect buffer addresses to higher addresses. . If a draw command includes multiple instances, the order in which instances are executed, from lower numbered instances to higher. . The order in which primitives are specified by a draw command: ** For non-indexed draws, from vertices with a lower numbered code:vertexIndex to a higher numbered code:vertexIndex. ** For indexed draws, vertices sourced from a lower index buffer addresses to higher addresses. Within this order implementations further sort primitives: [start=5] . If tessellation shading is active, by an implementation-dependent order of new primitives generated by <>. . If geometry shading is active, by the order new primitives are generated by <>. . If the <> is not ename:VK_POLYGON_MODE_FILL, ifdef::VK_NV_fill_rectangle[] or ename:VK_POLYGON_MODE_FILL_RECTANGLE_NV, endif::VK_NV_fill_rectangle[] by an implementation-dependent ordering of the new primitives generated within the original primitive. Primitive order is later used to define <>, which determines the order in which fragments output results to a framebuffer. == Programmable Primitive Shading Once primitives are assembled, they proceed to the vertex shading stage of the pipeline. If the draw includes multiple instances, then the set of primitives is sent to the vertex shading stage multiple times, once for each instance. It is undefined whether vertex shading occurs on vertices that are discarded as part of incomplete primitives, but if it does occur then it operates as if they were vertices in complete primitives and such invocations can: have side effects. Vertex shading receives two per-vertex inputs from the primitive assembly stage - the code:vertexIndex and the code:instanceIndex. How these values are generated is defined below, with each command. Drawing commands fall roughly into two categories: * Non-indexed drawing commands present a sequential code:vertexIndex to the vertex shader. The sequential index is generated automatically by the device (see <> for details on both specifying the vertex attributes indexed by code:vertexIndex, as well as binding vertex buffers containing those attributes to a command buffer). These commands are: ** flink:vkCmdDraw ** flink:vkCmdDrawIndirect ifdef::VK_KHR_draw_indirect_count[] ** flink:vkCmdDrawIndirectCountKHR endif::VK_KHR_draw_indirect_count[] ifdef::VK_AMD_draw_indirect_count[] ** flink:vkCmdDrawIndirectCountAMD. endif::VK_AMD_draw_indirect_count[] * Indexed drawing commands read index values from an _index buffer_ and use this to compute the code:vertexIndex value for the vertex shader. These commands are: ** flink:vkCmdDrawIndexed ** flink:vkCmdDrawIndexedIndirect ifdef::VK_KHR_draw_indirect_count[] ** flink:vkCmdDrawIndexedIndirectCountKHR endif::VK_KHR_draw_indirect_count[] ifdef::VK_AMD_draw_indirect_count[] ** flink:vkCmdDrawIndexedIndirectCountAMD. endif::VK_AMD_draw_indirect_count[] [open,refpage='vkCmdBindIndexBuffer',desc='Bind an index buffer to a command buffer',type='protos'] -- To bind an index buffer to a command buffer, call: include::../api/protos/vkCmdBindIndexBuffer.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:buffer is the buffer being bound. * pname:offset is the starting offset in bytes within pname:buffer used in index buffer address calculations. * pname:indexType is a elink:VkIndexType value specifying whether indices are treated as 16 bits or 32 bits. .Valid Usage **** * [[VUID-vkCmdBindIndexBuffer-offset-00431]] pname:offset must: be less than the size of pname:buffer * [[VUID-vkCmdBindIndexBuffer-offset-00432]] The sum of pname:offset and the address of the range of sname:VkDeviceMemory object that is backing pname:buffer, must: be a multiple of the type indicated by pname:indexType * [[VUID-vkCmdBindIndexBuffer-buffer-00433]] pname:buffer must: have been created with the ename:VK_BUFFER_USAGE_INDEX_BUFFER_BIT flag * [[VUID-vkCmdBindIndexBuffer-buffer-00434]] If pname:buffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object **** include::../validity/protos/vkCmdBindIndexBuffer.txt[] -- [open,refpage='VkIndexType',desc='Type of index buffer indices',type='enums'] -- Possible values of flink:vkCmdBindIndexBuffer::pname:indexType, specifying the size of indices, are: include::../api/enums/VkIndexType.txt[] * ename:VK_INDEX_TYPE_UINT16 specifies that indices are 16-bit unsigned integer values. * ename:VK_INDEX_TYPE_UINT32 specifies that indices are 32-bit unsigned integer values. -- The parameters for each drawing command are specified directly in the command or read from buffer memory, depending on the command. Drawing commands that source their parameters from buffer memory are known as _indirect_ drawing commands. All drawing commands interact with the <> feature. [open,refpage='vkCmdDraw',desc='Draw primitives',type='protos'] -- To record a non-indexed draw, call: include::../api/protos/vkCmdDraw.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:vertexCount is the number of vertices to draw. * pname:instanceCount is the number of instances to draw. * pname:firstVertex is the index of the first vertex to draw. * pname:firstInstance is the instance ID of the first instance to draw. When the command is executed, primitives are assembled using the current primitive topology and pname:vertexCount consecutive vertex indices with the first code:vertexIndex value equal to pname:firstVertex. The primitives are drawn pname:instanceCount times with code:instanceIndex starting with pname:firstInstance and increasing sequentially for each instance. The assembled primitives execute the bound graphics pipeline. .Valid Usage **** * [[VUID-vkCmdDraw-renderPass-00435]] The current render pass must: be <> with the pname:renderPass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDraw-subpass-00436]] The subpass index of the current render pass must: be equal to the pname:subpass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDraw-None-00437]] For each set _n_ that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a descriptor set must: have been bound to _n_ at ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for set _n_, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDraw-None-00438]] For each push constant that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a push constant value must: have been set for ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for push constants, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDraw-None-00439]] Descriptors in each bound descriptor set, specified via fname:vkCmdBindDescriptorSets, must: be valid if they are statically used by the bound sname:VkPipeline object, specified via fname:vkCmdBindPipeline * [[VUID-vkCmdDraw-None-00440]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point's interface must: have valid buffers bound * [[VUID-vkCmdDraw-None-00441]] For a given vertex buffer binding, any attribute data fetched must: be entirely contained within the corresponding vertex buffer binding, as described in <> * [[VUID-vkCmdDraw-None-00442]] A valid graphics pipeline must: be bound to the current command buffer with ename:VK_PIPELINE_BIND_POINT_GRAPHICS * [[VUID-vkCmdDraw-None-00443]] If the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS requires any dynamic state, that state must: have been set on the current command buffer * [[VUID-vkCmdDraw-None-00444]] Every input attachment used by the current subpass must: be bound to the pipeline via a descriptor set * [[VUID-vkCmdDraw-None-00445]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used to sample from any sname:VkImage with a sname:VkImageView of the type ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, ename:VK_IMAGE_VIEW_TYPE_1D_ARRAY, ename:VK_IMAGE_VIEW_TYPE_2D_ARRAY or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage * [[VUID-vkCmdDraw-None-00446]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions with code:ImplicitLod, code:Dref or code:Proj in their name, in any shader stage * [[VUID-vkCmdDraw-None-00447]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions that includes a LOD bias or any offset values, in any shader stage * [[VUID-vkCmdDraw-None-00448]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a uniform buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDraw-None-00449]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a storage buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDraw-None-01499]] Image subresources used as attachments in the current render pass must: not be accessed in any way other than as an attachment by this command. * [[VUID-vkCmdDraw-None-02009]] If a sname:VkImageView is sampled with with ename:VK_FILTER_LINEAR as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. ifdef::VK_IMG_filter_cubic[] * [[VUID-vkCmdDraw-None-02010]] If a sname:VkImageView is sampled with with ename:VK_FILTER_CUBIC_IMG as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG. * [[VUID-vkCmdDraw-None-00452]] Any slink:VkImageView being sampled with ename:VK_FILTER_CUBIC_IMG as a result of this command must: not have a elink:VkImageViewType of ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY endif::VK_IMG_filter_cubic[] ifdef::VK_VERSION_1_1,VK_KHR_multiview[] * [[VUID-vkCmdDraw-maxMultiviewInstanceIndex-00453]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must: be less than or equal to slink:VkPhysicalDeviceMultiviewProperties::pname:maxMultiviewInstanceIndex. endif::VK_VERSION_1_1,VK_KHR_multiview[] ifdef::VK_VERSION_1_1[] * [[VUID-vkCmdDraw-commandBuffer-01850]] If pname:commandBuffer is an unprotected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, that image or buffer must: not be a protected image or protected buffer. * [[VUID-vkCmdDraw-commandBuffer-01851]] If pname:commandBuffer is a protected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS writes to any image or buffer, that image or buffer must: not be an unprotected image or unprotected buffer. * [[VUID-vkCmdDraw-commandBuffer-01852]] If pname:commandBuffer is a protected command buffer, and any pipeline stage other than the framebuffer-space pipeline stages in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, the image or buffer must: not be a protected image or protected buffer. endif::VK_VERSION_1_1[] ifdef::VK_EXT_sample_locations[] * [[VUID-vkCmdDraw-sampleLocationsEnable-01512]] If the bound graphics pipeline was created with slink:VkPipelineSampleLocationsStateCreateInfoEXT::pname:sampleLocationsEnable set to ename:VK_TRUE and the current subpass has a depth/stencil attachment, then that attachment must: have been created with the ename:VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set endif::VK_EXT_sample_locations[] **** include::../validity/protos/vkCmdDraw.txt[] -- [open,refpage='vkCmdDrawIndexed',desc='Issue an indexed draw into a command buffer',type='protos'] -- To record an indexed draw, call: include::../api/protos/vkCmdDrawIndexed.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:indexCount is the number of vertices to draw. * pname:instanceCount is the number of instances to draw. * pname:firstIndex is the base index within the index buffer. * pname:vertexOffset is the value added to the vertex index before indexing into the vertex buffer. * pname:firstInstance is the instance ID of the first instance to draw. When the command is executed, primitives are assembled using the current primitive topology and pname:indexCount vertices whose indices are retrieved from the index buffer. The index buffer is treated as an array of tightly packed unsigned integers of size defined by the flink:vkCmdBindIndexBuffer::pname:indexType parameter with which the buffer was bound. The first vertex index is at an offset of pname:firstIndex * code:indexSize + pname:offset within the bound index buffer, where pname:offset is the offset specified by fname:vkCmdBindIndexBuffer and code:indexSize is the byte size of the type specified by pname:indexType. Subsequent index values are retrieved from consecutive locations in the index buffer. Indices are first compared to the primitive restart value, then zero extended to 32 bits (if the code:indexType is ename:VK_INDEX_TYPE_UINT16) and have pname:vertexOffset added to them, before being supplied as the code:vertexIndex value. The primitives are drawn pname:instanceCount times with code:instanceIndex starting with pname:firstInstance and increasing sequentially for each instance. The assembled primitives execute the bound graphics pipeline. .Valid Usage **** * [[VUID-vkCmdDrawIndexed-renderPass-00454]] The current render pass must: be <> with the pname:renderPass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndexed-subpass-00455]] The subpass index of the current render pass must: be equal to the pname:subpass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndexed-None-00456]] For each set _n_ that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a descriptor set must: have been bound to _n_ at ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for set _n_, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndexed-None-00457]] For each push constant that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a push constant value must: have been set for ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for push constants, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndexed-None-00458]] Descriptors in each bound descriptor set, specified via fname:vkCmdBindDescriptorSets, must: be valid if they are statically used by the bound sname:VkPipeline object, specified via fname:vkCmdBindPipeline * [[VUID-vkCmdDrawIndexed-None-00459]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point's interface must: have valid buffers bound * [[VUID-vkCmdDrawIndexed-None-00460]] For a given vertex buffer binding, any attribute data fetched must: be entirely contained within the corresponding vertex buffer binding, as described in <> * [[VUID-vkCmdDrawIndexed-None-00461]] A valid graphics pipeline must: be bound to the current command buffer with ename:VK_PIPELINE_BIND_POINT_GRAPHICS * [[VUID-vkCmdDrawIndexed-None-00462]] If the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS requires any dynamic state, that state must: have been set on the current command buffer * [[VUID-vkCmdDrawIndexed-indexSize-00463]] [eq]#(pname:indexSize * (pname:firstIndex {plus} pname:indexCount) {plus} pname:offset)# must: be less than or equal to the size of the bound index buffer, with indexSize being based on the type specified by pname:indexType, where the index buffer, pname:indexType, and pname:offset are specified via fname:vkCmdBindIndexBuffer * [[VUID-vkCmdDrawIndexed-None-00464]] Every input attachment used by the current subpass must: be bound to the pipeline via a descriptor set * [[VUID-vkCmdDrawIndexed-None-00465]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used to sample from any sname:VkImage with a sname:VkImageView of the type ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, ename:VK_IMAGE_VIEW_TYPE_1D_ARRAY, ename:VK_IMAGE_VIEW_TYPE_2D_ARRAY or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage * [[VUID-vkCmdDrawIndexed-None-00466]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions with code:ImplicitLod, code:Dref or code:Proj in their name, in any shader stage * [[VUID-vkCmdDrawIndexed-None-00467]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions that includes a LOD bias or any offset values, in any shader stage * [[VUID-vkCmdDrawIndexed-None-00468]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a uniform buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndexed-None-00469]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a storage buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndexed-None-02011]] If a sname:VkImageView is sampled with with ename:VK_FILTER_LINEAR as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. * [[VUID-vkCmdDrawIndexed-None-01500]] Image subresources used as attachments in the current render pass must: not be accessed in any way other than as an attachment by this command. ifdef::VK_IMG_filter_cubic[] * [[VUID-vkCmdDrawIndexed-None-02012]] If a sname:VkImageView is sampled with with ename:VK_FILTER_CUBIC_IMG as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG. * [[VUID-vkCmdDrawIndexed-None-00472]] Any slink:VkImageView being sampled with ename:VK_FILTER_CUBIC_IMG as a result of this command must: not have a elink:VkImageViewType of ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY endif::VK_IMG_filter_cubic[] ifdef::VK_VERSION_1_1,VK_KHR_multiview[] * [[VUID-vkCmdDrawIndexed-maxMultiviewInstanceIndex-00473]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must: be less than or equal to slink:VkPhysicalDeviceMultiviewProperties::pname:maxMultiviewInstanceIndex. endif::VK_VERSION_1_1,VK_KHR_multiview[] ifdef::VK_VERSION_1_1[] * [[VUID-vkCmdDrawIndexed-commandBuffer-01853]] If pname:commandBuffer is an unprotected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, that image or buffer must: not be a protected image or protected buffer. * [[VUID-vkCmdDrawIndexed-commandBuffer-01854]] If pname:commandBuffer is a protected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS writes to any image or buffer, that image or buffer must: not be an unprotected image or unprotected buffer. * [[VUID-vkCmdDrawIndexed-commandBuffer-01855]] If pname:commandBuffer is a protected command buffer, and any pipeline stage other than the framebuffer-space pipeline stages in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, the image or buffer must: not be a protected image or protected buffer. endif::VK_VERSION_1_1[] ifdef::VK_EXT_sample_locations[] * [[VUID-vkCmdDrawIndexed-sampleLocationsEnable-01513]] If the bound graphics pipeline was created with slink:VkPipelineSampleLocationsStateCreateInfoEXT::pname:sampleLocationsEnable set to ename:VK_TRUE and the current subpass has a depth/stencil attachment, then that attachment must: have been created with the ename:VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set endif::VK_EXT_sample_locations[] **** include::../validity/protos/vkCmdDrawIndexed.txt[] -- [open,refpage='vkCmdDrawIndirect',desc='Issue an indirect draw into a command buffer',type='protos'] -- To record a non-indexed indirect draw, call: include::../api/protos/vkCmdDrawIndirect.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:buffer is the buffer containing draw parameters. * pname:offset is the byte offset into pname:buffer where parameters begin. * pname:drawCount is the number of draws to execute, and can: be zero. * pname:stride is the byte stride between successive sets of draw parameters. fname:vkCmdDrawIndirect behaves similarly to flink:vkCmdDraw except that the parameters are read by the device from a buffer during execution. pname:drawCount draws are executed by the command, with parameters taken from pname:buffer starting at pname:offset and increasing by pname:stride bytes for each successive draw. The parameters of each draw are encoded in an array of slink:VkDrawIndirectCommand structures. If pname:drawCount is less than or equal to one, pname:stride is ignored. .Valid Usage **** * [[VUID-vkCmdDrawIndirect-buffer-00474]] If pname:buffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndirect-buffer-01660]] pname:buffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndirect-offset-00475]] pname:offset must: be a multiple of `4` * [[VUID-vkCmdDrawIndirect-drawCount-00476]] If pname:drawCount is greater than `1`, pname:stride must: be a multiple of `4` and must: be greater than or equal to code:sizeof(sname:VkDrawIndirectCommand) * [[VUID-vkCmdDrawIndirect-drawCount-00477]] If the <> feature is not enabled, pname:drawCount must: be `0` or `1` * [[VUID-vkCmdDrawIndirect-firstInstance-00478]] If the <> feature is not enabled, all the pname:firstInstance members of the sname:VkDrawIndirectCommand structures accessed by this command must: be code:0 * [[VUID-vkCmdDrawIndirect-renderPass-00479]] The current render pass must: be <> with the pname:renderPass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndirect-subpass-00480]] The subpass index of the current render pass must: be equal to the pname:subpass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndirect-None-00481]] For each set _n_ that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a descriptor set must: have been bound to _n_ at ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for set _n_, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndirect-None-00482]] For each push constant that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a push constant value must: have been set for ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for push constants, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndirect-None-00483]] Descriptors in each bound descriptor set, specified via fname:vkCmdBindDescriptorSets, must: be valid if they are statically used by the bound sname:VkPipeline object, specified via fname:vkCmdBindPipeline * [[VUID-vkCmdDrawIndirect-None-00484]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point's interface must: have valid buffers bound * [[VUID-vkCmdDrawIndirect-None-00485]] A valid graphics pipeline must: be bound to the current command buffer with ename:VK_PIPELINE_BIND_POINT_GRAPHICS * [[VUID-vkCmdDrawIndirect-None-00486]] If the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS requires any dynamic state, that state must: have been set on the current command buffer * [[VUID-vkCmdDrawIndirect-drawCount-00487]] If pname:drawCount is equal to `1`, [eq]#(pname:offset {plus} code:sizeof(slink:VkDrawIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndirect-drawCount-00488]] If pname:drawCount is greater than `1`, [eq]#(pname:stride {times} (pname:drawCount - 1) {plus} pname:offset {plus} code:sizeof(slink:VkDrawIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndirect-drawCount-00489]] pname:drawCount must: be less than or equal to sname:VkPhysicalDeviceLimits::pname:maxDrawIndirectCount * [[VUID-vkCmdDrawIndirect-None-00490]] Every input attachment used by the current subpass must: be bound to the pipeline via a descriptor set * [[VUID-vkCmdDrawIndirect-None-00491]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used to sample from any sname:VkImage with a sname:VkImageView of the type ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, ename:VK_IMAGE_VIEW_TYPE_1D_ARRAY, ename:VK_IMAGE_VIEW_TYPE_2D_ARRAY or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage * [[VUID-vkCmdDrawIndirect-None-00492]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions with code:ImplicitLod, code:Dref or code:Proj in their name, in any shader stage * [[VUID-vkCmdDrawIndirect-None-00493]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions that includes a LOD bias or any offset values, in any shader stage * [[VUID-vkCmdDrawIndirect-None-00494]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a uniform buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndirect-None-00495]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a storage buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndirect-None-02013]] If a sname:VkImageView is sampled with with ename:VK_FILTER_LINEAR as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. * [[VUID-vkCmdDrawIndirect-None-01501]] Image subresources used as attachments in the current render pass must: not be accessed in any way other than as an attachment by this command. ifdef::VK_IMG_filter_cubic[] * [[VUID-vkCmdDrawIndirect-None-02014]] If a sname:VkImageView is sampled with with ename:VK_FILTER_CUBIC_IMG as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG. * [[VUID-vkCmdDrawIndirect-None-00498]] Any slink:VkImageView being sampled with ename:VK_FILTER_CUBIC_IMG as a result of this command must: not have a elink:VkImageViewType of ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY endif::VK_IMG_filter_cubic[] ifdef::VK_VERSION_1_1,VK_KHR_multiview[] * [[VUID-vkCmdDrawIndirect-maxMultiviewInstanceIndex-00499]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must: be less than or equal to slink:VkPhysicalDeviceMultiviewProperties::pname:maxMultiviewInstanceIndex. endif::VK_VERSION_1_1,VK_KHR_multiview[] ifdef::VK_VERSION_1_1[] * [[VUID-vkCmdDrawIndirect-commandBuffer-01856]] If pname:commandBuffer is an unprotected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, that image or buffer must: not be a protected image or protected buffer. * [[VUID-vkCmdDrawIndirect-commandBuffer-01857]] If pname:commandBuffer is a protected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS writes to any image or buffer, that image or buffer must: not be an unprotected image or unprotected buffer. * [[VUID-vkCmdDrawIndirect-commandBuffer-01858]] If pname:commandBuffer is a protected command buffer, and any pipeline stage other than the framebuffer-space pipeline stages in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, the image or buffer must: not be a protected image or protected buffer. endif::VK_VERSION_1_1[] ifdef::VK_EXT_sample_locations[] * [[VUID-vkCmdDrawIndirect-sampleLocationsEnable-01514]] If the bound graphics pipeline was created with slink:VkPipelineSampleLocationsStateCreateInfoEXT::pname:sampleLocationsEnable set to ename:VK_TRUE and the current subpass has a depth/stencil attachment, then that attachment must: have been created with the ename:VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set endif::VK_EXT_sample_locations[] **** include::../validity/protos/vkCmdDrawIndirect.txt[] -- [open,refpage='VkDrawIndirectCommand',desc='Structure specifying a draw indirect command',type='structs',xrefs='vkCmdDrawIndirect'] -- The sname:VkDrawIndirectCommand structure is defined as: include::../api/structs/VkDrawIndirectCommand.txt[] * pname:vertexCount is the number of vertices to draw. * pname:instanceCount is the number of instances to draw. * pname:firstVertex is the index of the first vertex to draw. * pname:firstInstance is the instance ID of the first instance to draw. The members of sname:VkDrawIndirectCommand have the same meaning as the similarly named parameters of flink:vkCmdDraw. .Valid Usage **** * [[VUID-VkDrawIndirectCommand-None-00500]] For a given vertex buffer binding, any attribute data fetched must: be entirely contained within the corresponding vertex buffer binding, as described in <> * [[VUID-VkDrawIndirectCommand-firstInstance-00501]] If the <> feature is not enabled, pname:firstInstance must: be code:0 **** include::../validity/structs/VkDrawIndirectCommand.txt[] -- ifdef::VK_KHR_draw_indirect_count[] [open,refpage='vkCmdDrawIndirectCountKHR',desc='Perform an indirect draw with the draw count sourced from a buffer',type='protos'] -- To record a non-indexed draw call with a draw call count sourced from a buffer, call: include::../api/protos/vkCmdDrawIndirectCountKHR.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:buffer is the buffer containing draw parameters. * pname:offset is the byte offset into pname:buffer where parameters begin. * pname:countBuffer is the buffer containing the draw count. * pname:countBufferOffset is the byte offset into pname:countBuffer where the draw count begins. * pname:maxDrawCount specifies the maximum number of draws that will be executed. The actual number of executed draw calls is the minimum of the count specified in pname:countBuffer and pname:maxDrawCount. * pname:stride is the byte stride between successive sets of draw parameters. fname:vkCmdDrawIndirectCountKHR behaves similarly to flink:vkCmdDrawIndirect except that the draw count is read by the device from a buffer during execution. The command will read an unsigned 32-bit integer from pname:countBuffer located at pname:countBufferOffset and use this as the draw count. .Valid Usage **** * [[VUID-vkCmdDrawIndirectCountKHR-buffer-03104]] If pname:buffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndirectCountKHR-buffer-03105]] pname:buffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndirectCountKHR-countBuffer-03106]] If pname:countBuffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndirectCountKHR-countBuffer-03107]] pname:countBuffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndirectCountKHR-offset-03108]] pname:offset must: be a multiple of `4` * [[VUID-vkCmdDrawIndirectCountKHR-countBufferOffset-03109]] pname:countBufferOffset must: be a multiple of `4` * [[VUID-vkCmdDrawIndirectCountKHR-stride-03110]] pname:stride must: be a multiple of `4` and must: be greater than or equal to sizeof(sname:VkDrawIndirectCommand) * [[VUID-vkCmdDrawIndirectCountKHR-maxDrawCount-03111]] If pname:maxDrawCount is greater than or equal to `1`, [eq]#(pname:stride {times} (pname:maxDrawCount - 1) {plus} pname:offset {plus} sizeof(sname:VkDrawIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndirectCountKHR-firstInstance-03112]] If the <> feature is not enabled, all the pname:firstInstance members of the sname:VkDrawIndirectCommand structures accessed by this command must: be code:0 * [[VUID-vkCmdDrawIndirectCountKHR-renderPass-03113]] The current render pass must: be <> with the pname:renderPass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndirectCountKHR-subpass-03114]] The subpass index of the current render pass must: be equal to the pname:subpass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndirectCountKHR-None-03115]] For each set _n_ that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a descriptor set must: have been bound to _n_ at ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for set _n_, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndirectCountKHR-None-03116]] For each push constant that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a push constant value must: have been set for ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for push constants, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndirectCountKHR-None-03117]] Descriptors in each bound descriptor set, specified via fname:vkCmdBindDescriptorSets, must: be valid if they are statically used by the bound sname:VkPipeline object, specified via fname:vkCmdBindPipeline * [[VUID-vkCmdDrawIndirectCountKHR-None-03118]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point's interface must: have valid buffers bound * [[VUID-vkCmdDrawIndirectCountKHR-None-03119]] A valid graphics pipeline must: be bound to the current command buffer with ename:VK_PIPELINE_BIND_POINT_GRAPHICS * [[VUID-vkCmdDrawIndirectCountKHR-None-03120]] If the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS requires any dynamic state, that state must: have been set on the current command buffer * [[VUID-vkCmdDrawIndirectCountKHR-countBuffer-03121]] If the count stored in pname:countBuffer is equal to `1`, [eq]#(pname:offset {plus} sizeof(sname:VkDrawIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndirectCountKHR-countBuffer-03122]] If the count stored in pname:countBuffer is greater than `1`, [eq]#(pname:stride {times} (pname:drawCount - 1) {plus} pname:offset {plus} sizeof(sname:VkDrawIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndirectCountKHR-countBuffer-03123]] The count stored in pname:countBuffer must: be less than or equal to sname:VkPhysicalDeviceLimits::pname:maxDrawIndirectCount * [[VUID-vkCmdDrawIndirectCountKHR-None-03124]] Every input attachment used by the current subpass must: be bound to the pipeline via a descriptor set * [[VUID-vkCmdDrawIndirectCountKHR-None-03125]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used to sample from any sname:VkImage with a sname:VkImageView of the type ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, ename:VK_IMAGE_VIEW_TYPE_1D_ARRAY, ename:VK_IMAGE_VIEW_TYPE_2D_ARRAY or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage * [[VUID-vkCmdDrawIndirectCountKHR-None-03126]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions with code:ImplicitLod, code:Dref or code:Proj in their name, in any shader stage * [[VUID-vkCmdDrawIndirectCountKHR-None-03127]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions that includes a LOD bias or any offset values, in any shader stage * [[VUID-vkCmdDrawIndirectCountKHR-None-03128]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a uniform buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndirectCountKHR-None-03129]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a storage buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndirectCountKHR-None-02015]] If a sname:VkImageView is sampled with with ename:VK_FILTER_LINEAR as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. * [[VUID-vkCmdDrawIndirectCountKHR-None-03131]] Image subresources used as attachments in the current render pass must: not be accessed in any way other than as an attachment by this command. ifdef::VK_IMG_filter_cubic[] * [[VUID-vkCmdDrawIndirectCountKHR-None-02016]] If a sname:VkImageView is sampled with with ename:VK_FILTER_CUBIC_IMG as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG. * [[VUID-vkCmdDrawIndirectCountKHR-None-03170]] Any slink:VkImageView being sampled with ename:VK_FILTER_CUBIC_IMG as a result of this command must: not have a elink:VkImageViewType of ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY endif::VK_IMG_filter_cubic[] ifdef::VK_VERSION_1_1,VK_KHR_multiview[] * [[VUID-vkCmdDrawIndirectCountKHR-maxMultiviewInstanceIndex-03132]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must: be less than or equal to slink:VkPhysicalDeviceMultiviewProperties::pname:maxMultiviewInstanceIndex. endif::VK_VERSION_1_1,VK_KHR_multiview[] ifdef::VK_VERSION_1_1[] * [[VUID-vkCmdDrawIndirectCountKHR-commandBuffer-03133]] If pname:commandBuffer is an unprotected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, that image or buffer must: not be a protected image or protected buffer. * [[VUID-vkCmdDrawIndirectCountKHR-commandBuffer-03134]] If pname:commandBuffer is a protected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS writes to any image or buffer, that image or buffer must: not be an unprotected image or unprotected buffer. * [[VUID-vkCmdDrawIndirectCountKHR-commandBuffer-03135]] If pname:commandBuffer is a protected command buffer, and any pipeline stage other than the framebuffer-space pipeline stages in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, the image or buffer must: not be a protected image or protected buffer. endif::VK_VERSION_1_1[] ifdef::VK_EXT_sample_locations[] * [[VUID-vkCmdDrawIndirectCountKHR-sampleLocationsEnable-03171]] If the bound graphics pipeline was created with slink:VkPipelineSampleLocationsStateCreateInfoEXT::pname:sampleLocationsEnable set to ename:VK_TRUE and the current subpass has a depth/stencil attachment, then that attachment must: have been created with the ename:VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set endif::VK_EXT_sample_locations[] **** include::../validity/protos/vkCmdDrawIndirectCountKHR.txt[] -- endif::VK_KHR_draw_indirect_count[] ifdef::VK_AMD_draw_indirect_count[] [open,refpage='vkCmdDrawIndirectCountAMD',desc='Perform an indirect draw with the draw count sourced from a buffer',type='protos'] -- To record a non-indexed draw call with a draw call count sourced from a buffer, call: include::../api/protos/vkCmdDrawIndirectCountAMD.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:buffer is the buffer containing draw parameters. * pname:offset is the byte offset into pname:buffer where parameters begin. * pname:countBuffer is the buffer containing the draw count. * pname:countBufferOffset is the byte offset into pname:countBuffer where the draw count begins. * pname:maxDrawCount specifies the maximum number of draws that will be executed. The actual number of executed draw calls is the minimum of the count specified in pname:countBuffer and pname:maxDrawCount. * pname:stride is the byte stride between successive sets of draw parameters. fname:vkCmdDrawIndirectCountAMD behaves similarly to flink:vkCmdDrawIndirect except that the draw count is read by the device from a buffer during execution. The command will read an unsigned 32-bit integer from pname:countBuffer located at pname:countBufferOffset and use this as the draw count. .Valid Usage **** * [[VUID-vkCmdDrawIndirectCountAMD-buffer-01661]] If pname:buffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndirectCountAMD-buffer-01662]] pname:buffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndirectCountAMD-countBuffer-01663]] If pname:countBuffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndirectCountAMD-countBuffer-01664]] pname:countBuffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndirectCountAMD-offset-00502]] pname:offset must: be a multiple of `4` * [[VUID-vkCmdDrawIndirectCountAMD-countBufferOffset-00503]] pname:countBufferOffset must: be a multiple of `4` * [[VUID-vkCmdDrawIndirectCountAMD-stride-00504]] pname:stride must: be a multiple of `4` and must: be greater than or equal to code:sizeof(sname:VkDrawIndirectCommand) * [[VUID-vkCmdDrawIndirectCountAMD-maxDrawCount-00505]] If pname:maxDrawCount is greater than or equal to `1`, [eq]#(pname:stride {times} (pname:maxDrawCount - 1) {plus} pname:offset {plus} code:sizeof(sname:VkDrawIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndirectCountAMD-firstInstance-00506]] If the <> feature is not enabled, all the pname:firstInstance members of the sname:VkDrawIndirectCommand structures accessed by this command must: be code:0 * [[VUID-vkCmdDrawIndirectCountAMD-renderPass-00507]] The current render pass must: be <> with the pname:renderPass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndirectCountAMD-subpass-00508]] The subpass index of the current render pass must: be equal to the pname:subpass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndirectCountAMD-None-00509]] For each set _n_ that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a descriptor set must: have been bound to _n_ at ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for set _n_, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndirectCountAMD-None-00510]] For each push constant that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a push constant value must: have been set for ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for push constants, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndirectCountAMD-None-00511]] Descriptors in each bound descriptor set, specified via fname:vkCmdBindDescriptorSets, must: be valid if they are statically used by the bound sname:VkPipeline object, specified via fname:vkCmdBindPipeline * [[VUID-vkCmdDrawIndirectCountAMD-None-00512]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point's interface must: have valid buffers bound * [[VUID-vkCmdDrawIndirectCountAMD-None-00513]] A valid graphics pipeline must: be bound to the current command buffer with ename:VK_PIPELINE_BIND_POINT_GRAPHICS * [[VUID-vkCmdDrawIndirectCountAMD-None-00514]] If the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS requires any dynamic state, that state must: have been set on the current command buffer * [[VUID-vkCmdDrawIndirectCountAMD-countBuffer-00515]] If the count stored in pname:countBuffer is equal to `1`, [eq]#(pname:offset {plus} code:sizeof(sname:VkDrawIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndirectCountAMD-countBuffer-00516]] If the count stored in pname:countBuffer is greater than `1`, [eq]#(pname:stride {times} (pname:drawCount - 1) {plus} pname:offset {plus} code:sizeof(sname:VkDrawIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndirectCountAMD-countBuffer-00517]] The count stored in pname:countBuffer must: be less than or equal to sname:VkPhysicalDeviceLimits::pname:maxDrawIndirectCount * [[VUID-vkCmdDrawIndirectCountAMD-None-00518]] Every input attachment used by the current subpass must: be bound to the pipeline via a descriptor set * [[VUID-vkCmdDrawIndirectCountAMD-None-00519]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used to sample from any sname:VkImage with a sname:VkImageView of the type ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, ename:VK_IMAGE_VIEW_TYPE_1D_ARRAY, ename:VK_IMAGE_VIEW_TYPE_2D_ARRAY or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage * [[VUID-vkCmdDrawIndirectCountAMD-None-00520]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions with code:ImplicitLod, code:Dref or code:Proj in their name, in any shader stage * [[VUID-vkCmdDrawIndirectCountAMD-None-00521]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions that includes a LOD bias or any offset values, in any shader stage * [[VUID-vkCmdDrawIndirectCountAMD-None-00522]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a uniform buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndirectCountAMD-None-00523]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a storage buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndirectCountAMD-None-02017]] If a sname:VkImageView is sampled with with ename:VK_FILTER_LINEAR as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. * [[VUID-vkCmdDrawIndirectCountAMD-None-01502]] Image subresources used as attachments in the current render pass must: not be accessed in any way other than as an attachment by this command. ifdef::VK_VERSION_1_1,VK_KHR_multiview[] * [[VUID-vkCmdDrawIndirectCountAMD-maxMultiviewInstanceIndex-00525]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must: be less than or equal to slink:VkPhysicalDeviceMultiviewProperties::pname:maxMultiviewInstanceIndex. endif::VK_VERSION_1_1,VK_KHR_multiview[] ifdef::VK_VERSION_1_1[] * [[VUID-vkCmdDrawIndirectCountAMD-commandBuffer-01859]] If pname:commandBuffer is an unprotected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, that image or buffer must: not be a protected image or protected buffer. * [[VUID-vkCmdDrawIndirectCountAMD-commandBuffer-01860]] If pname:commandBuffer is a protected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS writes to any image or buffer, that image or buffer must: not be an unprotected image or unprotected buffer. * [[VUID-vkCmdDrawIndirectCountAMD-commandBuffer-01861]] If pname:commandBuffer is a protected command buffer, and any pipeline stage other than the framebuffer-space pipeline stages in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, the image or buffer must: not be a protected image or protected buffer. endif::VK_VERSION_1_1[] ifdef::VK_EXT_sample_locations[] * [[VUID-vkCmdDrawIndirectCountAMD-sampleLocationsEnable-01515]] If the bound graphics pipeline was created with slink:VkPipelineSampleLocationsStateCreateInfoEXT::pname:sampleLocationsEnable set to ename:VK_TRUE and the current subpass has a depth/stencil attachment, then that attachment must: have been created with the ename:VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set endif::VK_EXT_sample_locations[] **** include::../validity/protos/vkCmdDrawIndirectCountAMD.txt[] -- endif::VK_AMD_draw_indirect_count[] [open,refpage='vkCmdDrawIndexedIndirect',desc='Perform an indexed indirect draw',type='protos'] -- To record an indexed indirect draw, call: include::../api/protos/vkCmdDrawIndexedIndirect.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:buffer is the buffer containing draw parameters. * pname:offset is the byte offset into pname:buffer where parameters begin. * pname:drawCount is the number of draws to execute, and can: be zero. * pname:stride is the byte stride between successive sets of draw parameters. fname:vkCmdDrawIndexedIndirect behaves similarly to flink:vkCmdDrawIndexed except that the parameters are read by the device from a buffer during execution. pname:drawCount draws are executed by the command, with parameters taken from pname:buffer starting at pname:offset and increasing by pname:stride bytes for each successive draw. The parameters of each draw are encoded in an array of slink:VkDrawIndexedIndirectCommand structures. If pname:drawCount is less than or equal to one, pname:stride is ignored. .Valid Usage **** * [[VUID-vkCmdDrawIndexedIndirect-buffer-00526]] If pname:buffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndexedIndirect-buffer-01665]] pname:buffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndexedIndirect-offset-00527]] pname:offset must: be a multiple of `4` * [[VUID-vkCmdDrawIndexedIndirect-drawCount-00528]] If pname:drawCount is greater than `1`, pname:stride must: be a multiple of `4` and must: be greater than or equal to code:sizeof(sname:VkDrawIndexedIndirectCommand) * [[VUID-vkCmdDrawIndexedIndirect-drawCount-00529]] If the <> feature is not enabled, pname:drawCount must: be `0` or `1` * [[VUID-vkCmdDrawIndexedIndirect-firstInstance-00530]] If the <> feature is not enabled, all the pname:firstInstance members of the sname:VkDrawIndexedIndirectCommand structures accessed by this command must: be code:0 * [[VUID-vkCmdDrawIndexedIndirect-renderPass-00531]] The current render pass must: be <> with the pname:renderPass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndexedIndirect-subpass-00532]] The subpass index of the current render pass must: be equal to the pname:subpass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndexedIndirect-None-00533]] For each set _n_ that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a descriptor set must: have been bound to _n_ at ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for set _n_, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndexedIndirect-None-00534]] For each push constant that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a push constant value must: have been set for ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for push constants, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndexedIndirect-None-00535]] Descriptors in each bound descriptor set, specified via fname:vkCmdBindDescriptorSets, must: be valid if they are statically used by the bound sname:VkPipeline object, specified via fname:vkCmdBindPipeline * [[VUID-vkCmdDrawIndexedIndirect-None-00536]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point's interface must: have valid buffers bound * [[VUID-vkCmdDrawIndexedIndirect-None-00537]] A valid graphics pipeline must: be bound to the current command buffer with ename:VK_PIPELINE_BIND_POINT_GRAPHICS * [[VUID-vkCmdDrawIndexedIndirect-None-00538]] If the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS requires any dynamic state, that state must: have been set on the current command buffer * [[VUID-vkCmdDrawIndexedIndirect-drawCount-00539]] If pname:drawCount is equal to `1`, [eq]#(pname:offset {plus} code:sizeof(sname:VkDrawIndexedIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndexedIndirect-drawCount-00540]] If pname:drawCount is greater than `1`, [eq]#(pname:stride {times} (pname:drawCount - 1) {plus} pname:offset {plus} code:sizeof(sname:VkDrawIndexedIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndexedIndirect-drawCount-00541]] pname:drawCount must: be less than or equal to sname:VkPhysicalDeviceLimits::pname:maxDrawIndirectCount * [[VUID-vkCmdDrawIndexedIndirect-None-00542]] Every input attachment used by the current subpass must: be bound to the pipeline via a descriptor set * [[VUID-vkCmdDrawIndexedIndirect-None-00543]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used to sample from any sname:VkImage with a sname:VkImageView of the type ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, ename:VK_IMAGE_VIEW_TYPE_1D_ARRAY, ename:VK_IMAGE_VIEW_TYPE_2D_ARRAY or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage * [[VUID-vkCmdDrawIndexedIndirect-None-00544]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions with code:ImplicitLod, code:Dref or code:Proj in their name, in any shader stage * [[VUID-vkCmdDrawIndexedIndirect-None-00545]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions that includes a LOD bias or any offset values, in any shader stage * [[VUID-vkCmdDrawIndexedIndirect-None-00546]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a uniform buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndexedIndirect-None-00547]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a storage buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndexedIndirect-None-02018]] If a sname:VkImageView is sampled with with ename:VK_FILTER_LINEAR as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. * [[VUID-vkCmdDrawIndexedIndirect-None-01503]] Image subresources used as attachments in the current render pass must: not be accessed in any way other than as an attachment by this command. ifdef::VK_IMG_filter_cubic[] * [[VUID-vkCmdDrawIndexedIndirect-None-02019]] If a sname:VkImageView is sampled with with ename:VK_FILTER_CUBIC_IMG as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG. * [[VUID-vkCmdDrawIndexedIndirect-None-00550]] Any slink:VkImageView being sampled with ename:VK_FILTER_CUBIC_IMG as a result of this command must: not have a elink:VkImageViewType of ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY endif::VK_IMG_filter_cubic[] ifdef::VK_VERSION_1_1,VK_KHR_multiview[] * [[VUID-vkCmdDrawIndexedIndirect-maxMultiviewInstanceIndex-00551]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must: be less than or equal to slink:VkPhysicalDeviceMultiviewProperties::pname:maxMultiviewInstanceIndex. endif::VK_VERSION_1_1,VK_KHR_multiview[] ifdef::VK_VERSION_1_1[] * [[VUID-vkCmdDrawIndexedIndirect-commandBuffer-01862]] If pname:commandBuffer is an unprotected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, that image or buffer must: not be a protected image or protected buffer. * [[VUID-vkCmdDrawIndexedIndirect-commandBuffer-01863]] If pname:commandBuffer is a protected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS writes to any image or buffer, that image or buffer must: not be an unprotected image or unprotected buffer. * [[VUID-vkCmdDrawIndexedIndirect-commandBuffer-01864]] If pname:commandBuffer is a protected command buffer, and any pipeline stage other than the framebuffer-space pipeline stages in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, the image or buffer must: not be a protected image or protected buffer. endif::VK_VERSION_1_1[] ifdef::VK_EXT_sample_locations[] * [[VUID-vkCmdDrawIndexedIndirect-sampleLocationsEnable-01516]] If the bound graphics pipeline was created with slink:VkPipelineSampleLocationsStateCreateInfoEXT::pname:sampleLocationsEnable set to ename:VK_TRUE and the current subpass has a depth/stencil attachment, then that attachment must: have been created with the ename:VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set endif::VK_EXT_sample_locations[] **** include::../validity/protos/vkCmdDrawIndexedIndirect.txt[] -- [open,refpage='VkDrawIndexedIndirectCommand',desc='Structure specifying a draw indexed indirect command',type='structs',xrefs='vkCmdDrawIndexedIndirect'] -- The sname:VkDrawIndexedIndirectCommand structure is defined as: include::../api/structs/VkDrawIndexedIndirectCommand.txt[] * pname:indexCount is the number of vertices to draw. * pname:instanceCount is the number of instances to draw. * pname:firstIndex is the base index within the index buffer. * pname:vertexOffset is the value added to the vertex index before indexing into the vertex buffer. * pname:firstInstance is the instance ID of the first instance to draw. The members of sname:VkDrawIndexedIndirectCommand have the same meaning as the similarly named parameters of flink:vkCmdDrawIndexed. .Valid Usage **** * [[VUID-VkDrawIndexedIndirectCommand-None-00552]] For a given vertex buffer binding, any attribute data fetched must: be entirely contained within the corresponding vertex buffer binding, as described in <> * [[VUID-VkDrawIndexedIndirectCommand-indexSize-00553]] [eq]#(pname:indexSize * (pname:firstIndex {plus} pname:indexCount) {plus} pname:offset)# must: be less than or equal to the size of the bound index buffer, with pname:indexSize being based on the type specified by pname:indexType, where the index buffer, pname:indexType, and pname:offset are specified via fname:vkCmdBindIndexBuffer * [[VUID-VkDrawIndexedIndirectCommand-firstInstance-00554]] If the <> feature is not enabled, pname:firstInstance must: be code:0 **** include::../validity/structs/VkDrawIndexedIndirectCommand.txt[] -- ifdef::VK_KHR_draw_indirect_count[] [open,refpage='vkCmdDrawIndexedIndirectCountKHR',desc='Perform an indexed indirect draw with the draw count sourced from a buffer',type='protos'] -- To record an indexed draw call with a draw call count sourced from a buffer, call: include::../api/protos/vkCmdDrawIndexedIndirectCountKHR.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:buffer is the buffer containing draw parameters. * pname:offset is the byte offset into pname:buffer where parameters begin. * pname:countBuffer is the buffer containing the draw count. * pname:countBufferOffset is the byte offset into pname:countBuffer where the draw count begins. * pname:maxDrawCount specifies the maximum number of draws that will be executed. The actual number of executed draw calls is the minimum of the count specified in pname:countBuffer and pname:maxDrawCount. * pname:stride is the byte stride between successive sets of draw parameters. fname:vkCmdDrawIndexedIndirectCountKHR behaves similarly to flink:vkCmdDrawIndexedIndirect except that the draw count is read by the device from a buffer during execution. The command will read an unsigned 32-bit integer from pname:countBuffer located at pname:countBufferOffset and use this as the draw count. .Valid Usage **** * [[VUID-vkCmdDrawIndexedIndirectCountKHR-buffer-03136]] If pname:buffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndexedIndirectCountKHR-buffer-03137]] pname:buffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndexedIndirectCountKHR-countBuffer-03138]] If pname:countBuffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndexedIndirectCountKHR-countBuffer-03139]] pname:countBuffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndexedIndirectCountKHR-offset-03140]] pname:offset must: be a multiple of `4` * [[VUID-vkCmdDrawIndexedIndirectCountKHR-countBufferOffset-03141]] pname:countBufferOffset must: be a multiple of `4` * [[VUID-vkCmdDrawIndexedIndirectCountKHR-stride-03142]] pname:stride must: be a multiple of `4` and must: be greater than or equal to sizeof(sname:VkDrawIndexedIndirectCommand) * [[VUID-vkCmdDrawIndexedIndirectCountKHR-maxDrawCount-03143]] If pname:maxDrawCount is greater than or equal to `1`, [eq]#(pname:stride {times} (pname:maxDrawCount - 1) {plus} pname:offset {plus} sizeof(sname:VkDrawIndexedIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndexedIndirectCountKHR-firstInstance-03144]] If the <> feature is not enabled, all the pname:firstInstance members of the sname:VkDrawIndexedIndirectCommand structures accessed by this command must: be code:0 * [[VUID-vkCmdDrawIndexedIndirectCountKHR-renderPass-03145]] The current render pass must: be <> with the pname:renderPass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndexedIndirectCountKHR-subpass-03146]] The subpass index of the current render pass must: be equal to the pname:subpass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03147]] For each set _n_ that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a descriptor set must: have been bound to _n_ at ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for set _n_, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03148]] For each push constant that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a push constant value must: have been set for ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for push constants, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03149]] Descriptors in each bound descriptor set, specified via fname:vkCmdBindDescriptorSets, must: be valid if they are statically used by the bound sname:VkPipeline object, specified via fname:vkCmdBindPipeline * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03150]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point's interface must: have valid buffers bound * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03151]] A valid graphics pipeline must: be bound to the current command buffer with ename:VK_PIPELINE_BIND_POINT_GRAPHICS * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03152]] If the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS requires any dynamic state, that state must: have been set on the current command buffer * [[VUID-vkCmdDrawIndexedIndirectCountKHR-countBuffer-03153]] If count stored in pname:countBuffer is equal to `1`, [eq]#(pname:offset {plus} sizeof(sname:VkDrawIndexedIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndexedIndirectCountKHR-countBuffer-03154]] If count stored in pname:countBuffer is greater than `1`, [eq]#(pname:stride {times} (pname:drawCount - 1) {plus} pname:offset {plus} sizeof(sname:VkDrawIndexedIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndexedIndirectCountKHR-drawCount-03155]] pname:drawCount must: be less than or equal to sname:VkPhysicalDeviceLimits::pname:maxDrawIndirectCount * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03156]] Every input attachment used by the current subpass must: be bound to the pipeline via a descriptor set * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03157]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used to sample from any sname:VkImage with a sname:VkImageView of the type ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, ename:VK_IMAGE_VIEW_TYPE_1D_ARRAY, ename:VK_IMAGE_VIEW_TYPE_2D_ARRAY or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03158]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions with code:ImplicitLod, code:Dref or code:Proj in their name, in any shader stage * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03159]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions that includes a LOD bias or any offset values, in any shader stage * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03160]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a uniform buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03161]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a storage buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-02020]] If a sname:VkImageView is sampled with with ename:VK_FILTER_LINEAR as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03163]] Image subresources used as attachments in the current render pass must: not be accessed in any way other than as an attachment by this command. ifdef::VK_IMG_filter_cubic[] * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-02021]] If a sname:VkImageView is sampled with with ename:VK_FILTER_CUBIC_IMG as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG. * [[VUID-vkCmdDrawIndexedIndirectCountKHR-None-03173]] Any slink:VkImageView being sampled with ename:VK_FILTER_CUBIC_IMG as a result of this command must: not have a elink:VkImageViewType of ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY endif::VK_IMG_filter_cubic[] ifdef::VK_VERSION_1_1,VK_KHR_multiview[] * [[VUID-vkCmdDrawIndexedIndirectCountKHR-maxMultiviewInstanceIndex-03164]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must: be less than or equal to slink:VkPhysicalDeviceMultiviewProperties::pname:maxMultiviewInstanceIndex. endif::VK_VERSION_1_1,VK_KHR_multiview[] ifdef::VK_VERSION_1_1[] * [[VUID-vkCmdDrawIndexedIndirectCountKHR-commandBuffer-03165]] If pname:commandBuffer is an unprotected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, that image or buffer must: not be a protected image or protected buffer. * [[VUID-vkCmdDrawIndexedIndirectCountKHR-commandBuffer-03166]] If pname:commandBuffer is a protected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS writes to any image or buffer, that image or buffer must: not be an unprotected image or unprotected buffer. * [[VUID-vkCmdDrawIndexedIndirectCountKHR-commandBuffer-03167]] If pname:commandBuffer is a protected command buffer, and any pipeline stage other than the framebuffer-space pipeline stages in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, the image or buffer must: not be a protected image or protected buffer. endif::VK_VERSION_1_1[] ifdef::VK_EXT_sample_locations[] * [[VUID-vkCmdDrawIndexedIndirectCountKHR-sampleLocationsEnable-03174]] If the bound graphics pipeline was created with slink:VkPipelineSampleLocationsStateCreateInfoEXT::pname:sampleLocationsEnable set to ename:VK_TRUE and the current subpass has a depth/stencil attachment, then that attachment must: have been created with the ename:VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set endif::VK_EXT_sample_locations[] **** include::../validity/protos/vkCmdDrawIndexedIndirectCountKHR.txt[] -- endif::VK_KHR_draw_indirect_count[] ifdef::VK_AMD_draw_indirect_count[] [open,refpage='vkCmdDrawIndexedIndirectCountAMD',desc='Perform an indexed indirect draw with the draw count sourced from a buffer',type='protos'] -- To record an indexed draw call with a draw call count sourced from a buffer, call: include::../api/protos/vkCmdDrawIndexedIndirectCountAMD.txt[] * pname:commandBuffer is the command buffer into which the command is recorded. * pname:buffer is the buffer containing draw parameters. * pname:offset is the byte offset into pname:buffer where parameters begin. * pname:countBuffer is the buffer containing the draw count. * pname:countBufferOffset is the byte offset into pname:countBuffer where the draw count begins. * pname:maxDrawCount specifies the maximum number of draws that will be executed. The actual number of executed draw calls is the minimum of the count specified in pname:countBuffer and pname:maxDrawCount. * pname:stride is the byte stride between successive sets of draw parameters. fname:vkCmdDrawIndexedIndirectCountAMD behaves similarly to flink:vkCmdDrawIndexedIndirect except that the draw count is read by the device from a buffer during execution. The command will read an unsigned 32-bit integer from pname:countBuffer located at pname:countBufferOffset and use this as the draw count. .Valid Usage **** * [[VUID-vkCmdDrawIndexedIndirectCountAMD-buffer-01666]] If pname:buffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndexedIndirectCountAMD-buffer-01667]] pname:buffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndexedIndirectCountAMD-countBuffer-01668]] If pname:countBuffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-vkCmdDrawIndexedIndirectCountAMD-countBuffer-01669]] pname:countBuffer must: have been created with the ename:VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set * [[VUID-vkCmdDrawIndexedIndirectCountAMD-offset-00555]] pname:offset must: be a multiple of `4` * [[VUID-vkCmdDrawIndexedIndirectCountAMD-countBufferOffset-00556]] pname:countBufferOffset must: be a multiple of `4` * [[VUID-vkCmdDrawIndexedIndirectCountAMD-stride-00557]] pname:stride must: be a multiple of `4` and must: be greater than or equal to code:sizeof(sname:VkDrawIndexedIndirectCommand) * [[VUID-vkCmdDrawIndexedIndirectCountAMD-maxDrawCount-00558]] If pname:maxDrawCount is greater than or equal to `1`, [eq]#(pname:stride {times} (pname:maxDrawCount - 1) {plus} pname:offset {plus} code:sizeof(sname:VkDrawIndexedIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndexedIndirectCountAMD-firstInstance-00559]] If the <> feature is not enabled, all the pname:firstInstance members of the sname:VkDrawIndexedIndirectCommand structures accessed by this command must: be `0` * [[VUID-vkCmdDrawIndexedIndirectCountAMD-renderPass-00560]] The current render pass must: be <> with the pname:renderPass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndexedIndirectCountAMD-subpass-00561]] The subpass index of the current render pass must: be equal to the pname:subpass member of the sname:VkGraphicsPipelineCreateInfo structure specified when creating the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS. * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00562]] For each set _n_ that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a descriptor set must: have been bound to _n_ at ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for set _n_, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00563]] For each push constant that is statically used by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS, a push constant value must: have been set for ename:VK_PIPELINE_BIND_POINT_GRAPHICS, with a sname:VkPipelineLayout that is compatible for push constants, with the sname:VkPipelineLayout used to create the current sname:VkPipeline, as described in <> * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00564]] Descriptors in each bound descriptor set, specified via fname:vkCmdBindDescriptorSets, must: be valid if they are statically used by the bound sname:VkPipeline object, specified via fname:vkCmdBindPipeline * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00565]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point's interface must: have valid buffers bound * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00566]] A valid graphics pipeline must: be bound to the current command buffer with ename:VK_PIPELINE_BIND_POINT_GRAPHICS * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00567]] If the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS requires any dynamic state, that state must: have been set on the current command buffer * [[VUID-vkCmdDrawIndexedIndirectCountAMD-countBuffer-00568]] If count stored in pname:countBuffer is equal to `1`, [eq]#(pname:offset {plus} code:sizeof(sname:VkDrawIndexedIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndexedIndirectCountAMD-countBuffer-00569]] If count stored in pname:countBuffer is greater than `1`, [eq]#(pname:stride {times} (pname:drawCount - 1) {plus} pname:offset {plus} code:sizeof(sname:VkDrawIndexedIndirectCommand))# must: be less than or equal to the size of pname:buffer * [[VUID-vkCmdDrawIndexedIndirectCountAMD-drawCount-00570]] pname:drawCount must: be less than or equal to sname:VkPhysicalDeviceLimits::pname:maxDrawIndirectCount * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00571]] Every input attachment used by the current subpass must: be bound to the pipeline via a descriptor set * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00572]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used to sample from any sname:VkImage with a sname:VkImageView of the type ename:VK_IMAGE_VIEW_TYPE_3D, ename:VK_IMAGE_VIEW_TYPE_CUBE, ename:VK_IMAGE_VIEW_TYPE_1D_ARRAY, ename:VK_IMAGE_VIEW_TYPE_2D_ARRAY or ename:VK_IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00573]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions with code:ImplicitLod, code:Dref or code:Proj in their name, in any shader stage * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00574]] If any sname:VkSampler object that is accessed from a shader by the sname:VkPipeline bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS uses unnormalized coordinates, it must: not be used with any of the SPIR-V `OpImageSample*` or `OpImageSparseSample*` instructions that includes a LOD bias or any offset values, in any shader stage * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00575]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a uniform buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-00576]] If the <> feature is not enabled, and any shader stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS accesses a storage buffer, it must: not access values outside of the range of that buffer specified in the bound descriptor set * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-02022]] If a sname:VkImageView is sampled with with ename:VK_FILTER_LINEAR as a result of this command, then the image view's <> must: contain ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. * [[VUID-vkCmdDrawIndexedIndirectCountAMD-None-01504]] Image subresources used as attachments in the current render pass must: not be accessed in any way other than as an attachment by this command. ifdef::VK_VERSION_1_1,VK_KHR_multiview[] * [[VUID-vkCmdDrawIndexedIndirectCountAMD-maxMultiviewInstanceIndex-00578]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must: be less than or equal to slink:VkPhysicalDeviceMultiviewProperties::pname:maxMultiviewInstanceIndex. endif::VK_VERSION_1_1,VK_KHR_multiview[] ifdef::VK_VERSION_1_1[] * [[VUID-vkCmdDrawIndexedIndirectCountAMD-commandBuffer-01865]] If pname:commandBuffer is an unprotected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, that image or buffer must: not be a protected image or protected buffer. * [[VUID-vkCmdDrawIndexedIndirectCountAMD-commandBuffer-01866]] If pname:commandBuffer is a protected command buffer, and any pipeline stage in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS writes to any image or buffer, that image or buffer must: not be an unprotected image or unprotected buffer. * [[VUID-vkCmdDrawIndexedIndirectCountAMD-commandBuffer-01867]] If pname:commandBuffer is a protected command buffer, and any pipeline stage other than the framebuffer-space pipeline stages in the sname:VkPipeline object bound to ename:VK_PIPELINE_BIND_POINT_GRAPHICS reads from or writes to any image or buffer, the image or buffer must: not be a protected image or protected buffer. endif::VK_VERSION_1_1[] ifdef::VK_EXT_sample_locations[] * [[VUID-vkCmdDrawIndexedIndirectCountAMD-sampleLocationsEnable-01517]] If the bound graphics pipeline was created with slink:VkPipelineSampleLocationsStateCreateInfoEXT::pname:sampleLocationsEnable set to ename:VK_TRUE and the current subpass has a depth/stencil attachment, then that attachment must: have been created with the ename:VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set endif::VK_EXT_sample_locations[] **** include::../validity/protos/vkCmdDrawIndexedIndirectCountAMD.txt[] -- endif::VK_AMD_draw_indirect_count[] ifdef::VK_EXT_conditional_rendering[] [[drawing-conditional-rendering]] == Conditional Rendering Certain rendering commands can: be executed conditionally based on a value in buffer memory. These rendering commands are limited to <>, <>, and clearing attachments with flink:vkCmdClearAttachments within a conditional rendering block which is defined by commands flink:vkCmdBeginConditionalRenderingEXT and flink:vkCmdEndConditionalRenderingEXT. Other rendering commands remain unaffected by conditional rendering. [[active-conditional-rendering]] After beginning conditional rendering, it is considered _active_ within the command buffer it was called until it is ended with flink:vkCmdEndConditionalRenderingEXT. Conditional rendering must: begin and end in the same command buffer. When conditional rendering is active, a primary command buffer can: execute secondary command buffers if the <> feature is enabled. For a secondary command buffer to be executed while conditional rendering is active in the primary command buffer, it must: set the pname:conditionalRenderingEnable flag of slink:VkCommandBufferInheritanceConditionalRenderingInfoEXT, as described in the <> section. Conditional rendering must: also either begin and end inside the same subpass of a render pass instance, or must: both begin and end outside of a render pass instance (i.e. contain entire render pass instances). [open,refpage='vkCmdBeginConditionalRenderingEXT',desc='Define the beginning of a conditional rendering block',type='protos'] -- To begin conditional rendering, call: include::../api/protos/vkCmdBeginConditionalRenderingEXT.txt[] * pname:commandBuffer is the command buffer into which this command will be recorded. * pname:pConditionalRenderingBegin is a pointer to an instance of the slink:VkConditionalRenderingBeginInfoEXT structure specifying the parameters of conditional rendering. .Valid Usage **** * [[VUID-vkCmdBeginConditionalRenderingEXT-None-01980]] Conditional rendering must: not already be <> **** include::../validity/protos/vkCmdBeginConditionalRenderingEXT.txt[] -- [open,refpage='VkConditionalRenderingBeginInfoEXT',desc='Structure specifying conditional rendering begin info',type='structs'] -- The sname:VkConditionalRenderingBeginInfoEXT structure is defined as: include::../api/structs/VkConditionalRenderingBeginInfoEXT.txt[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to an extension-specific structure. * pname:buffer is a buffer containing the predicate for conditional rendering. * pname:offset is the byte offset into pname:buffer where the predicate is located. * pname:flags is a bitmask of elink:VkConditionalRenderingFlagsEXT specifying the behavior of conditional rendering. If the 32-bit value at pname:offset in pname:buffer memory is zero, then the rendering commands are discarded, otherwise they are executed as normal. If the value of the predicate in buffer memory changes while conditional rendering is active, the rendering commands may: be discarded in an implementation-dependent way. Some implementations may latch the value of the predicate upon beginning conditional rendering while others may read it before every rendering command. .Valid Usage **** * [[VUID-VkConditionalRenderingBeginInfoEXT-buffer-01981]] If pname:buffer is non-sparse then it must: be bound completely and contiguously to a single sname:VkDeviceMemory object * [[VUID-VkConditionalRenderingBeginInfoEXT-buffer-01982]] pname:buffer must: have been created with the ename:VK_BUFFER_USAGE_CONDITIONAL_RENDERING_BIT_EXT bit set * [[VUID-VkConditionalRenderingBeginInfoEXT-offset-01983]] pname:offset must: be less than the size of pname:buffer by at least 32 bits. * [[VUID-VkConditionalRenderingBeginInfoEXT-offset-01984]] pname:offset must: be a multiple of 4 **** [open,refpage='VkConditionalRenderingFlagBitsEXT',desc='Specify the behavior of conditional rendering',type='enums'] -- Bits which can: be set in flink:vkCmdBeginConditionalRenderingEXT::pname:flags specifying the behavior of conditional rendering are: include::../api/enums/VkConditionalRenderingFlagBitsEXT.txt[] * ename:VK_CONDITIONAL_RENDERING_INVERTED_BIT_EXT specifies the condition used to determine whether to discard rendering commands or not. That is, if the 32-bit predicate read from pname:buffer memory at pname:offset is zero, the rendering commands are not discarded, and if non zero, then they are discarded. -- [open,refpage='VkConditionalRenderingFlagsEXT',desc='Bitmask of VkConditionalRenderingFlagBitsEXT',type='enums'] -- include::../api/flags/VkConditionalRenderingFlagsEXT.txt[] sname:VkConditionalRenderingFlagsEXT is a bitmask type for setting a mask of zero or more slink:VkConditionalRenderingFlagBitsEXT. [open,refpage='vkCmdEndConditionalRenderingEXT',desc='Define the end of a conditional rendering block',type='protos'] -- To end conditional rendering, call: include::../api/protos/vkCmdEndConditionalRenderingEXT.txt[] * pname:commandBuffer is the command buffer into which this command will be recorded. Once ended, conditional rendering becomes inactive. .Valid Usage **** * [[VUID-vkCmdEndConditionalRenderingEXT-None-01985]] Conditional rendering must: be <> * [[VUID-vkCmdEndConditionalRenderingEXT-None-01986]] If conditional rendering was made <> outside of a render pass instance, it must not be ended inside a render pass instance * [[VUID-vkCmdEndConditionalRenderingEXT-None-01987]] If conditional rendering was made <> within a subpass it must be ended in the same subpass **** include::../validity/protos/vkCmdEndConditionalRenderingEXT.txt[] -- endif::VK_EXT_conditional_rendering[]