Registered Extension Number

206

Revision

1

Extension and Version Dependencies

Other Extension Metadata

Last Modified Date

2018-07-31

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.

New Enum Constants

  • VK_NV_SCISSOR_EXCLUSIVE_EXTENSION_NAME

  • VK_NV_SCISSOR_EXCLUSIVE_SPEC_VERSION

  • Extending VkDynamicState:

    • 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 1, 2018-07-31 (Pat Brown)

    • Internal revisions

See Also

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 (c) 2014-2020 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0