FragDepth(3)

Name

FragDepth - Application-specified depth for depth testing

FragDepth: To have a shader supply a fragment-depth value, the shadermust declare theDepthReplacing execution mode.Such a shader’s fragment-depth value will come from the variable decoratedwith theFragDepth built-in decoration.
This value will be used for any subsequent depth testing performed by theimplementation or writes to the depth attachment.Seefragment shader depth replacementfor details.

Valid Usage

VUID-FragDepth-FragDepth-04213
TheFragDepth decorationmust be used only within theFragmentExecutionModel
VUID-FragDepth-FragDepth-04214
The variable decorated withFragDepthmust be declared using theOutputStorageClass
VUID-FragDepth-FragDepth-04215
The variable decorated withFragDepthmust be declared as a scalar32-bit floating-point value
VUID-FragDepth-FragDepth-04216
If the shader dynamically writes to the variable decorated withFragDepth, theDepthReplacingExecutionModemust bedeclared

For more information, see theVulkan Specification (NOTE: cannot determine Specification page containing this refpage).

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