wehub-resource-sync
46 lines
796 B
HLSL
46 lines
796 B
HLSL
cbuffer ParamConstants : register(b0)
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{
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float4 ColorA;
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float4 ColorB;
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float2 Size;
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float UseAspectRatio;
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float Scale;
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float2 Offset;
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}
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cbuffer Resolution : register(b1)
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{
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float TargetWidth;
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float TargetHeight;
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}
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struct vsOutput
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{
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float4 position : SV_POSITION;
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float2 texCoord : TEXCOORD;
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};
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#define mod(x, y) (x - y * floor(x / y))
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float4 psMain(vsOutput psInput) : SV_TARGET
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{
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float aspectRatio = TargetWidth/TargetHeight;
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float2 p = psInput.texCoord;
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if(UseAspectRatio > 0.5) {
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p -= 0.5;
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p.x *= aspectRatio;
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}
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p /= Size * Scale ;
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p += Offset * float2(-1,1);
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float2 a = mod(p,1);
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float t= (a.x > 0.5 && a.y < 0.5) || (a.x < 0.5 && a.y > 0.5)
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? 0 : 1;
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return lerp(ColorA, ColorB, t);
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} |