23 lines
832 B
Metal
23 lines
832 B
Metal
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#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Uniforms {
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float4 colorGreen;
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float4 colorRed;
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float4 testInputs;
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};
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struct Inputs {
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};
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struct Outputs {
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float4 sk_FragColor [[color(0)]];
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};
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fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
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Outputs _out;
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(void)_out;
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uint xy = pack_float_to_unorm2x16(_uniforms.testInputs.xy);
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uint zw = pack_float_to_unorm2x16(_uniforms.testInputs.zw);
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const float2 tolerance = float2(0.015625);
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_out.sk_FragColor = all((abs(unpack_unorm2x16_to_float(xy)) < tolerance)) && all((abs(unpack_unorm2x16_to_float(zw) - float2(0.75, 1.0)) < tolerance)) ? _uniforms.colorGreen : _uniforms.colorRed;
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return _out;
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}
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