1#include <metal_stdlib> 2#include <simd/simd.h> 3using namespace metal; 4struct Uniforms { 5 float3x3 testMatrix3x3; 6 half4 colorGreen; 7 half4 colorRed; 8}; 9struct Inputs { 10}; 11struct Outputs { 12 half4 sk_FragColor [[color(0)]]; 13}; 14fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 15 Outputs _out; 16 (void)_out; 17 const float3 expected1 = float3(-3.0, 6.0, -3.0); 18 const float3 expected2 = float3(6.0, -12.0, 6.0); 19 _out.sk_FragColor = all(cross(_uniforms.testMatrix3x3[0], _uniforms.testMatrix3x3[1]) == expected1) && all(cross(_uniforms.testMatrix3x3[2], _uniforms.testMatrix3x3[0]) == expected2) ? _uniforms.colorGreen : _uniforms.colorRed; 20 return _out; 21} 22