50dce10c5d
This extension provides a new operation which causes a fragment to be discarded without terminating the fragment shader invocation. The invocation for the discarded fragment becomes a helper invocation, so that derivatives will remain defined. The old `HelperInvocation` builtin becomes undefined when this occurs, so a second new instruction queries the current helper invocation status. This is only fully supported for GLSL. HLSL doesn't support the `IsHelperInvocation` operation and MSL doesn't support the `DemoteToHelperInvocation` op. Fixes #1052.
8 lines
95 B
GLSL
8 lines
95 B
GLSL
#version 450
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#extension GL_EXT_demote_to_helper_invocation : require
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void main()
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{
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demote;
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}
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