Safe Haskell	None
Language	Haskell2010

Vulkan.Extensions.VK_NV_sample_mask_override_coverage

Description

Name

VK_NV_sample_mask_override_coverage - device extension

VK_NV_sample_mask_override_coverage

Name String: VK_NV_sample_mask_override_coverage

Extension Type

Device extension

Registered Extension Number

95

Revision

1

Extension and Version Dependencies

Requires Vulkan 1.0

Contact

Piers Daniell https://github.com/KhronosGroup/Vulkan-Docs/issues/new?title=VK_NV_sample_mask_override_coverage:%20&body=@pdaniell-nv%20

Other Extension Metadata

Last Modified Date: 2016-12-08

IP Status

No known IP claims.

Interactions and External Dependencies

This extension requires SPV_NV_sample_mask_override_coverage
This extension provides API support for GL_NV_sample_mask_override_coverage

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.