wehub-resource-sync
122 lines
2.5 KiB
HLSL
122 lines
2.5 KiB
HLSL
cbuffer ParamConstants : register(b0)
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{
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float RotateMirror;
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float RotateImage;
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float Width;
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float Offset;
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float2 OffsetImage;
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float __dummy__;
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float ShadeAmount;
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float4 ShadeColor;
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float OffsetEdge;
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}
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// cbuffer TimeConstants : register(b1)
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// {
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// float globalTime;
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// float time;
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// float runTime;
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// float beatTime;
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// }
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cbuffer ResolutionConstants : 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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Texture2D<float4> ImageA : register(t0);
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sampler texSampler : register(s0);
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float mod(float x, float y)
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{
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return (x - y * floor(x / y));
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}
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float4 psMain(vsOutput psInput) : SV_TARGET
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{
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float rotateScreenRad = (-RotateMirror + RotateImage - 90) / 180 * 3.141578;
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uint imageWidth, imageHeight;
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ImageA.GetDimensions(imageWidth, imageHeight);
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float imageAspect = (float)imageWidth / imageHeight;
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float aspectRatio = TargetWidth / TargetHeight;
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float2 p = psInput.texCoord;
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p -= 0.5;
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p.x *= aspectRatio;
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// p.x *= aspectRatio;
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// p-= float2(0.5 * aspectRatio, 0.5);
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float sina = sin(-rotateScreenRad - 3.141578 / 2);
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float cosa = cos(-rotateScreenRad - 3.141578 / 2);
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p = float2(
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cosa * p.x - sina * p.y,
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cosa * p.y + sina * p.x);
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// Show Center
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// if( length(p - Center) < 0.01) {
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// return float4(1,1,0,1);
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// }
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float mirrorRotationRad = (+RotateImage - 90) / 180 * 3.141578;
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float2 angle = float2(sin(mirrorRotationRad), cos(mirrorRotationRad));
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float dist = dot(p, angle);
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float offset = Offset % 2;
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dist += offset;
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float shade = 0;
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float d = 0;
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float mDist = dist % (2 * Width);
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if (dist > Width)
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{
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if (mDist > Width)
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{
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shade = 1;
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d = -2 * (mDist - Width);
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}
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}
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else if (dist < 0)
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{
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mDist *= -1;
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if (mDist < Width)
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{
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shade = 1;
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}
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else
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{
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d = -2 * (mDist - Width);
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}
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}
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d -= dist - mDist;
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d += offset;
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d += OffsetEdge;
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p += d * angle;
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p.x /= aspectRatio;
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p *= float2(aspectRatio / imageAspect, 1);
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p += float2(0.5, 0.5);
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p += OffsetImage * float2(1 / imageAspect, 1);
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float4 texColor = ImageA.Sample(texSampler, p);
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float4 color = lerp(texColor, ShadeColor, shade * ShadeAmount);
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color = clamp(color, float4(0, 0, 0, 0), float4(100, 100, 100, 1));
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return color;
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} |