VK_NV_scissor_exclusive(3)

# VK_NV_scissor_exclusive(3) Manual Page

## Name

VK_NV_scissor_exclusive - device extension

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## Registered Extension Number

206

## Revision

2

## Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

## Contact

- Pat Brown nvpbrown

## Other Extension Metadata

Last Modified Date

  2023-01-18

IP Status

  No known IP claims.

Interactions and External Dependencies

  None

Contributors

  - Pat Brown, NVIDIA

  - Jeff Bolz, NVIDIA

  - Piers Daniell, NVIDIA

  - Daniel Koch, NVIDIA

## Description

This extension adds support for an exclusive scissor test to Vulkan. The exclusive scissor test behaves like the scissor test, except that the exclusive scissor test fails for pixels inside the corresponding rectangle and passes for pixels outside the rectangle. If the same rectangle is used for both the scissor and exclusive scissor tests, the exclusive scissor test will pass if and only if the scissor test fails.

Version 2 of this extension introduces `VK_DYNAMIC_STATE_EXCLUSIVE_SCISSOR_ENABLE_NV` and vkCmdSetExclusiveScissorEnableNV. Applications that use this dynamic state must ensure the implementation advertises at least `specVersion` `2` of this extension.

## New Commands

- vkCmdSetExclusiveScissorEnableNV

- vkCmdSetExclusiveScissorNV

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceExclusiveScissorFeaturesNV

- Extending VkPipelineViewportStateCreateInfo:

  - VkPipelineViewportExclusiveScissorStateCreateInfoNV

## New Enum Constants

- `VK_NV_SCISSOR_EXCLUSIVE_EXTENSION_NAME`

- `VK_NV_SCISSOR_EXCLUSIVE_SPEC_VERSION`

- Extending VkDynamicState:

  - `VK_DYNAMIC_STATE_EXCLUSIVE_SCISSOR_ENABLE_NV`

  - `VK_DYNAMIC_STATE_EXCLUSIVE_SCISSOR_NV`

- Extending VkStructureType:

  - `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXCLUSIVE_SCISSOR_FEATURES_NV`

  - `VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_EXCLUSIVE_SCISSOR_STATE_CREATE_INFO_NV`

## Issues

1) For the scissor test, the viewport state must be created with a matching number of scissor and viewport rectangles. Should we have the same requirement for exclusive scissors?

RESOLVED: For exclusive scissors, we relax this requirement and allow an exclusive scissor rectangle count that is either zero or equal to the number of viewport rectangles. If you pass in an exclusive scissor count of zero, the exclusive scissor test is treated as disabled.

## Version History

- Revision 2, 2023-01-18 (Piers Daniell)

  - Add dynamic state for explicit exclusive scissor enables

- Revision 1, 2018-07-31 (Pat Brown)

  - Internal revisions

## See Also

VkPhysicalDeviceExclusiveScissorFeaturesNV, VkPipelineViewportExclusiveScissorStateCreateInfoNV, vkCmdSetExclusiveScissorEnableNV, vkCmdSetExclusiveScissorNV

## Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

## Copyright

Copyright 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0