Registered Extension Number

95

Revision

1

Extension and Version Dependencies

  • Requires Vulkan 1.0

Other Extension Metadata

Last Modified Date

2016-12-08

IP Status

No known IP claims.

Interactions and External Dependencies
Contributors
  • Daniel Koch, NVIDIA

  • Jeff Bolz, NVIDIA

Description

This extension adds support for the following SPIR-V extension in Vulkan:

  • SPV_NV_sample_mask_override_coverage

The extension provides access to the OverrideCoverageNV decoration under the SampleMaskOverrideCoverageNV capability. Adding this decoration to a variable with the SampleMask builtin decoration allows the shader to modify the coverage mask and affect which samples are used to process the fragment.

When using GLSL source-based shader languages, the override_coverage layout qualifier from GL_NV_sample_mask_override_coverage maps to the OverrideCoverageNV decoration. To use the override_coverage layout qualifier in GLSL the GL_NV_sample_mask_override_coverage extension must be enabled. Behavior is described in the GL_NV_sample_mask_override_coverage extension spec.

New Object Types

None.

New Enum Constants

None.

New Enums

None.

New Structures

None.

New Functions

None.

New Built-In Variables

None.

New Variable Decoration

New SPIR-V Capabilities

Issues

None.

Version History

  • Revision 1, 2016-12-08 (Piers Daniell)

    • Internal revisions

See Also

No cross-references are available

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 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.