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* 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.
90 lines
2.9 KiB
Plaintext
90 lines
2.9 KiB
Plaintext
include::meta/VK_EXT_fragment_density_map.txt[]
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*Last Modified Date*::
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2018-09-25
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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_fragment_invocation_density.html[`SPV_EXT_fragment_invocation_density`]
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SPIR-V extension.
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*Contributors*::
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- Matthew Netsch, Qualcomm Technologies, Inc.
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- Robert VanReenen, Qualcomm Technologies, Inc.
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- Jonathan Wicks, Qualcomm Technologies, Inc.
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- Tate Hornbeck, Qualcomm Technologies, Inc.
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- Sam Holmes, Qualcomm Technologies, Inc.
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- Jeff Leger, Qualcomm Technologies, Inc.
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- Jan-Harald Fredriksen, ARM
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- Jeff Bolz, NVIDIA
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- Pat Brown, NVIDIA
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- Daniel Rakos, AMD
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- Piers Daniell, NVIDIA
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This extension allows an application to specify areas of the render target
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where the fragment shader may be invoked fewer times.
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These fragments are broadcasted out to multiple pixels to cover the render
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target.
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The primary use of this extension is to reduce workloads in areas where
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lower quality may not be perceived such as the distorted edges of a lens or
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the periphery of a user's gaze.
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=== New Object Types
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None.
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=== New Enum Constants
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* Extending elink:VkAccessFlagBits:
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** ename:VK_ACCESS_FRAGMENT_DENSITY_MAP_READ_BIT_EXT
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* Extending elink:VkFormatFeatureFlagBits:
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** ename:VK_FORMAT_FEATURE_FRAGMENT_DENSITY_MAP_BIT_EXT
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* Extending elink:VkImageCreateFlagBits:
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** ename:VK_IMAGE_CREATE_SUBSAMPLED_BIT_EXT
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* Extending elink:VkImageLayout:
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** ename:VK_IMAGE_LAYOUT_FRAGMENT_DENSITY_MAP_OPTIMAL_EXT
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* Extending elink:VkImageUsageFlagBits:
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** ename:VK_IMAGE_USAGE_FRAGMENT_DENSITY_MAP_BIT_EXT
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* Extending elink:VkImageViewCreateFlagBits:
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** ename:VK_IMAGE_VIEW_CREATE_FRAGMENT_DENSITY_MAP_DYNAMIC_BIT_EXT
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* Extending elink:VkPipelineStageFlagBits:
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** ename:VK_PIPELINE_STAGE_FRAGMENT_DENSITY_PROCESS_BIT_EXT
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* Extending elink:VkSamplerCreateFlagBits:
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** ename:VK_SAMPLER_CREATE_SUBSAMPLED_BIT_EXT
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** ename:VK_SAMPLER_CREATE_SUBSAMPLED_COARSE_RECONSTRUCTION_BIT_EXT
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* Extending elink:VkStructureType:
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FRAGMENT_DENSITY_MAP_FEATURES_EXT
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FRAGMENT_DENSITY_MAP_PROPERTIES_EXT
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** ename:VK_STRUCTURE_TYPE_RENDER_PASS_FRAGMENT_DENSITY_MAP_CREATE_INFO_EXT
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=== New Enums
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None.
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=== New Structures
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* slink:VkPhysicalDeviceFragmentDensityMapFeaturesEXT
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* slink:VkPhysicalDeviceFragmentDensityMapPropertiesEXT
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* slink:VkRenderPassFragmentDensityMapCreateInfoEXT
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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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* <<interfaces-builtin-variables-fraginvocationcount,code:FragInvocationCountEXT>>
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* <<interfaces-builtin-variables-fragsize,code:FragSizeEXT>>
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=== New Variable Decorations
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None.
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=== New SPIR-V Capabilities
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* <<spirvenv-capabilities-table-fragmentdensity,FragmentDensityEXT>>
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=== Version History
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* Revision 1, 2018-09-25 (Matthew Netsch)
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- Initial version
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