#include #include using namespace metal; struct Uniforms { half4 colorWhite; }; struct Inputs { }; struct Outputs { half4 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; half4 x = _uniforms.colorWhite; for (half r = -5.0h;r < 5.0h; r += 1.0h) { x.x = saturate(r); if (x.x == 0.0h) break; } for (half b = 5.0h;b >= 0.0h; b -= 1.0h) { x.z = b; if (x.w == 1.0h) continue; x.y = 0.0h; } _out.sk_FragColor = x; return _out; }