#include <metal_stdlib> #include <simd/simd.h> using namespace metal; struct Uniforms { float unknownInput; }; struct Inputs { }; struct Outputs { float4 sk_FragColor [[color(0)]]; }; fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { Outputs _out; (void)_out; float value; switch (int(_uniforms.unknownInput)) { case 0: value = 0.0; break; case 1: value = 1.0; break; default: value = 2.0; } _out.sk_FragColor = float4(value); return _out; }