VkPipelineCoverageToColorStateCreateInfoNV - Structure specifying whether fragment coverage replaces a color

Description

If coverageToColorEnable is TRUE, the fragment coverage information is treated as a bitmask with one bit for each sample (as in the Sample Mask section), and this bitmask replaces the first component of the color value corresponding to the fragment shader output location with Location equal to coverageToColorLocation and Index equal to zero. If the color attachment format has fewer bits than the sample coverage, the low bits of the sample coverage bitmask are taken without any clamping. If the color attachment format has more bits than the sample coverage, the high bits of the sample coverage bitmask are filled with zeros.

If Sample Shading is in use, the coverage bitmask only has bits set for samples that correspond to the fragment shader invocation that shades those samples.

This pipeline stage occurs after sample counting and before blending, and is always performed after fragment shading regardless of the setting of EarlyFragmentTests.

If coverageToColorEnable is FALSE, these operations are skipped. If this structure is not present, it is as if coverageToColorEnable is FALSE.

Valid Usage

• If coverageToColorEnable is TRUE, then the render pass subpass indicated by GraphicsPipelineCreateInfo::renderPass and GraphicsPipelineCreateInfo::subpass must have a color attachment at the location selected by coverageToColorLocation, with a Format of FORMAT_R8_UINT, FORMAT_R8_SINT, FORMAT_R16_UINT, FORMAT_R16_SINT, FORMAT_R32_UINT, or FORMAT_R32_SINT

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_PIPELINE_COVERAGE_TO_COLOR_STATE_CREATE_INFO_NV

• flags must be 0

See Also

Bool32, PipelineCoverageToColorStateCreateFlagsNV, StructureType

VkPipelineCoverageToColorStateCreateFlagsNV - Reserved for future use

Description

PipelineCoverageToColorStateCreateFlagsNV is a bitmask type for setting a mask, but is currently reserved for future use.

See Also

PipelineCoverageToColorStateCreateInfoNV