2020-09-25 17:35:58 +00:00
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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 Inputs {
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2020-10-06 18:43:32 +00:00
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float4 src;
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float4 dst;
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2020-09-25 17:35:58 +00:00
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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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2020-10-06 18:43:32 +00:00
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2020-09-25 17:35:58 +00:00
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fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
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Outputs _outputStruct;
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thread Outputs* _out = &_outputStruct;
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2020-12-15 23:06:29 +00:00
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_out->sk_FragColor = float4((_in.dst.xyz + _in.src.xyz) - (2.0 * _in.dst.xyz) * _in.src.xyz, _in.src.w + (1.0 - _in.src.w) * _in.dst.w);
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2020-09-25 17:35:58 +00:00
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return *_out;
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}
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