| #include <metal_stdlib> | |
| #include <simd/simd.h> | |
| using namespace metal; | |
| struct Inputs { | |
| float4 src; | |
| float4 dst; | |
| }; | |
| struct Outputs { | |
| float4 sk_FragColor [[color(0)]]; | |
| }; | |
| fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { | |
| Outputs _outputStruct; | |
| thread Outputs* _out = &_outputStruct; | |
| _out->sk_FragColor = _in.dst.w * _in.src + (1.0 - _in.src.w) * _in.dst; | |
| return *_out; | |
| } |