12a8654784
If this is computed *before* a `demote`, but used *after*, forwarding it will produce the wrong value. This does make for uglier shaders, but it's necessary right now to ensure correctness. I needed to use an assembly shader to produce the test for this. `spirv-opt` is not smart enough (or too smart?) to eliminate the variable that would be used in GLSL to express this.
16 lines
251 B
Plaintext
16 lines
251 B
Plaintext
#version 450
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#extension GL_EXT_demote_to_helper_invocation : require
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layout(location = 0) out vec4 FragColor;
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void main()
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{
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bool _15 = helperInvocationEXT();
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demote;
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if (!_15)
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{
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FragColor = vec4(1.0, 0.0, 0.0, 1.0);
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}
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}
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