SPIRV-Cross/shaders-msl/frag/depth-out-early-frag-tests.frag
Bill Hollings 248e9ae9ed MSL: Don't output depth and stencil values with explicit early fragment tests.
Fragment shaders that require explicit early fragment tests are incompatible
with specifying depth and stencil values within the shader. If explicit early
fragment tests is specified, remove the depth and stencil outputs from the
output structure, and replace them with dummy local variables.

Add CompilerMSL:uses_explicit_early_fragment_test() function to consolidate
testing for whether early fragment tests are required.

Add two unit tests for depth-out with, and without, early fragment tests.
2021-11-12 14:17:00 -05:00

12 lines
237 B
GLSL

#version 430
layout(depth_less) out float gl_FragDepth;
layout(early_fragment_tests) in;
layout(location = 0) out vec4 color_out;
void main()
{
color_out = vec4(1.0, 0.0, 0.0, 1.0);
gl_FragDepth = 0.699999988079071044921875;
}