72 lines
1.8 KiB
Plaintext
72 lines
1.8 KiB
Plaintext
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include::meta/VK_NV_scissor_exclusive.txt[]
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*Last Modified Date*::
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2018-07-31
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*IP Status*::
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No known IP claims.
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*Interactions and External Dependencies*::
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None
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*Contributors*::
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- Pat Brown, NVIDIA
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- Jeff Bolz, NVIDIA
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- Piers Daniell, NVIDIA
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- Daniel Koch, NVIDIA
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This extension adds support for an exclusive scissor test to Vulkan.
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The exclusive scissor test behaves like the scissor test, except that the
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exclusive scissor test fails for pixels inside the corresponding rectangle
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and passes for pixels outside the rectangle.
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If the same rectangle is used for both the scissor and exclusive scissor
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tests, the exclusive scissor test will pass if and only if the scissor test
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fails.
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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:VkStructureType
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** ename:VK_STRUCTURE_TYPE_PIPELINE_EXCLUSIVE_SCISSOR_STATE_CREATE_INFO_NV
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXCLUSIVE_SCISSOR_FEATURES_NV
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* Extending elink:VkDynamicState
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** ename:VK_DYNAMIC_STATE_EXCLUSIVE_SCISSOR_NV
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=== New Enums
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None.
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=== New Structures
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* slink:VkPhysicalDeviceExclusiveScissorFeaturesNV
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* slink:VkPipelineExclusiveScissorStateCreateInfoNV
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=== New Functions
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* flink:vkCmdSetExclusiveScissorNV
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=== New Built-In Variables
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None.
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=== New SPIR-V Capabilities
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None.
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=== Issues
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1) For the scissor test, the viewport state must be created with a matching
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number of scissor and viewport rectangles.
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Should we have the same requirement for exclusive scissors?
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*RESOLVED*: For exclusive scissors, we relax this requirement and allow an
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exclusive scissor rectangle count that is either zero or equal to the number
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of viewport rectangles.
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If you pass in an exclusive scissor count of zero, the exclusive scissor
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test is treated as disabled.
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=== Version History
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* Revision 1, 2018-07-31 (Pat Brown)
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- Internal revisions
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