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f1a7c4b4f3
* Update release number to 98.
Public Issues:
* Fix missing markup in flink:vkDestroyPipelineLayout valid usage
statement (pull request 882).
* Add missing contributors for `<<VK_EXT_buffer_device_address>>` (public
pull request 891).
Internal Issues:
* Detect nested bullet points in valid usage blocks and warn about them
during VUID assignment (internal issue 1382).
* Update the style guide to document the process for reserving new bits in
bitmask types (internal issue 1411).
* Clarify for slink:VkApplicationInfo::pname:apiVersion and in the
<<fundamentals-validusage-versions, Valid Usage for Newer Core
Versions>> section when it is valid for an application to use a certain
version of Vulkan API functionality (for an instance and for a
device/physical device); and when the validation layers must generate an
error (internal issue 1412).
* Add optional <<memory-model-availability-visibility, transitive
availability/visibility operations to the memory model, including a new
pname:vulkanMemoryModelAvailabilityVisibilityChains feature for
slink:VkPhysicalDeviceVulkanMemoryModelFeaturesKHR (internal issue
1460).
* Add the code:StorageBuffer storage class to those in the
<<interfaces-resources-descset, Descriptor Set Interface>> (internal
issue 1480).
* Add missing `returnedonly` tags for a number of returned extension
structures that can be passed in pname:pNext chains (internal issue
1515).
* Clean up and rearrange some spec language for
slink:VkRenderPassCreateInfo and slink:VkAttachmentReference.txt
(internal issue 1522).
* Correctly round the code:OpVectorTimesScalar and
code:OpMatrixTimesScalar SPIR-V operations in the <<Precision of core
SPIR-V Instructions>> table (internal merge request 2996).
* Work around cases in flink:vkCmdBeginTransformFeedbackEXT,
flink:vkCmdEndTransformFeedbackEXT, and
slink:VkPipelineCoverageModulationStateCreateInfoNV where an array
parameter is `optional` but the length is not in `vk.xml`. This is an
interim fix using `noautovalidity` + handcoded VU replacing those that
should be autogenerated (internal issue 2944 and
https://github.com/KhronosGroup/Vulkan-ValidationLayers/issues/480).
* Remove redundant capability validation of the code:float16 and code:int8
SPIR-V capabilities from the <<spirvenv-capabilities, Capabilities>>
section, since they are already covered in the preceding table.
* Update check_spec_links script, including validation for reference page
open blocks. Fix errors identified by the script.
93 lines
2.7 KiB
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93 lines
2.7 KiB
Plaintext
include::meta/VK_EXT_shader_viewport_index_layer.txt[]
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*Last Modified Date*::
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2017-08-08
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*Interactions and External Dependencies*::
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- This extension requires the
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https://www.khronos.org/registry/spir-v/extensions/EXT/SPV_EXT_shader_viewport_index_layer.html[`SPV_EXT_shader_viewport_index_layer`]
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SPIR-V extension.
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- This extension requires the
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https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_shader_viewport_layer_array.txt[`GL_ARB_shader_viewport_layer_array`],
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https://www.khronos.org/registry/OpenGL/extensions/AMD/AMD_vertex_shader_layer.txt[`GL_AMD_vertex_shader_layer`],
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https://www.khronos.org/registry/OpenGL/extensions/AMD/AMD_vertex_shader_viewport_index.txt[`GL_AMD_vertex_shader_viewport_index`],
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or
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https://www.khronos.org/registry/OpenGL/extensions/NV/NV_viewport_array2.txt[`GL_NV_viewport_array2`]
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extensions for GLSL source languages.
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- This extension requires the pname:multiViewport feature.
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- This extension interacts with the pname:tessellationShader feature.
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*Contributors*::
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- Piers Daniell, NVIDIA
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- Jeff Bolz, NVIDIA
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- Jan-Harald Fredriksen, ARM
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- Daniel Rakos, AMD
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- Slawomir Grajeswki, Intel
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This extension adds support for the code:ShaderViewportIndexLayerEXT
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capability from the `SPV_EXT_shader_viewport_index_layer` extension in
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Vulkan.
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This extension allows variables decorated with the code:Layer and
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code:ViewportIndex built-ins to be exported from vertex or tessellation
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shaders, using the code:ShaderViewportIndexLayerEXT capability.
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When using GLSL source-based shading languages, the code:gl_ViewportIndex
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and code:gl_Layer built-in variables map to the SPIR-V code:ViewportIndex
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and code:Layer built-in decorations, respectively.
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Behaviour of these variables is extended as described in the
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`GL_ARB_shader_viewport_layer_array` (or the precursor
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`GL_AMD_vertex_shader_layer`, `GL_AMD_vertex_shader_viewport_index`, and
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`GL_NV_viewport_array2` extensions).
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ifdef::VK_NV_viewport_array2[]
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[NOTE]
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.Note
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====
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The code:ShaderViewportIndexLayerEXT capability is equivalent to the
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code:ShaderViewportIndexLayerNV capability added by
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`<<VK_NV_viewport_array2>>`.
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====
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endif::VK_NV_viewport_array2[]
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=== New Object Types
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None.
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=== New Enum Constants
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None.
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=== New Enums
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None.
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=== New Structures
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None.
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=== New Functions
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None.
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=== New or Modified Built-In Variables
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* (modified) <<interfaces-builtin-variables-layer,code:Layer>>
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* (modified)
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<<interfaces-builtin-variables-viewportindex,code:ViewportIndex>>
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=== New Variable Decoration
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None.
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=== New SPIR-V Capabilities
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* <<spirvenv-capabilities-table-shader-viewport-index-layer,code:ShaderViewportIndexLayerEXT>>
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=== Issues
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None yet!
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=== Version History
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* Revision 1, 2017-08-08 (Daniel Koch)
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- Internal drafts
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