Description

FragInvocationCountEXT

Decorating a variable with the FragInvocationCountEXT built-in decoration will make that variable contain the maximum number of fragment shader invocations for the fragment, as determined by minSampleShading.

If Sample Shading is not enabled, FragInvocationCountEXT will be filled with a value of 1.

Valid Usage

  • VUID-FragInvocationCountEXT-FragInvocationCountEXT-04217
    The FragInvocationCountEXT decoration must be used only within the Fragment Execution Model

  • VUID-FragInvocationCountEXT-FragInvocationCountEXT-04218
    The variable decorated with FragInvocationCountEXT must be declared using the Input Storage Class

  • VUID-FragInvocationCountEXT-FragInvocationCountEXT-04219
    The variable decorated with FragInvocationCountEXT must be declared as a scalar 32-bit integer value

See Also

No cross-references are available

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0