1#include <metal_stdlib> 2#include <simd/simd.h> 3using namespace metal; 4struct Uniforms { 5 float a; 6 float b; 7 float4 c; 8 float4 d; 9}; 10struct Inputs { 11}; 12struct Outputs { 13 float4 sk_FragColor [[color(0)]]; 14}; 15 16fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 17 Outputs _out; 18 (void)_out; 19 _out.sk_FragColor.x = abs(_uniforms.a - _uniforms.b); 20 _out.sk_FragColor.x = distance(_uniforms.c, _uniforms.d); 21 return _out; 22} 23