28 lines
776 B
Metal
28 lines
776 B
Metal
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Uniforms {
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half2 ah;
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half2 bh;
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float2 af;
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float2 bf;
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};
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struct Inputs {
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};
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struct Outputs {
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half4 sk_FragColor [[color(0)]];
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};
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half cross_length_2d_hh2h2(half2 a, half2 b) {
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return a.x * b.y - a.y * b.x;
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}
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float cross_length_2d_ff2f2(float2 a, float2 b) {
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return a.x * b.y - a.y * b.x;
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}
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fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
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Outputs _out;
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(void)_out;
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_out.sk_FragColor.x = cross_length_2d_hh2h2(_uniforms.ah, _uniforms.bh);
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_out.sk_FragColor.y = half(cross_length_2d_ff2f2(_uniforms.af, _uniforms.bf));
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return _out;
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}
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