wehub-resource-sync
79 lines
2.2 KiB
HLSL
79 lines
2.2 KiB
HLSL
//#include "shared/hash-functions.hlsl"
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#include "shared/hash-functions.hlsl"
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cbuffer ParamConstants : register(b0)
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{
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float Specularity;
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float Shade;
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float Twist;
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float SampleRadius;
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float2 Offset;
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float Amount;
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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 Resolution : register(b2)
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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> DisplaceMap : register(t0);
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Texture2D<float4> Image : register(t1);
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sampler texSampler : register(s0);
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float IsBetween( float value, float low, float high) {
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return (value >= low && value <= high) ? 1:0;
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}
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float4 psMain(vsOutput psInput) : SV_TARGET
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{
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float2 uv = psInput.texCoord;
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float4 uvImage = DisplaceMap.Sample(texSampler, uv);
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float displaceMapWidth, displaceMapHeight;
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DisplaceMap.GetDimensions(displaceMapWidth, displaceMapHeight);
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displaceMapWidth = TargetWidth;
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displaceMapHeight = TargetHeight;
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float2 sampleOffset = SampleRadius / float2(displaceMapWidth, displaceMapHeight);
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float4 cx1= DisplaceMap.Sample(texSampler, float2(uv.x + sampleOffset.x, uv.y));
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float4 cx2= DisplaceMap.Sample(texSampler, float2(uv.x - sampleOffset.x, uv.y));
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float4 cy1= DisplaceMap.Sample(texSampler, float2(uv.x, uv.y + sampleOffset.y));
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float4 cy2= DisplaceMap.Sample(texSampler, float2(uv.x, uv.y - sampleOffset.y));
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float x1= (cx1.r + cx1.g + cx1.b) / 3;
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float x2= (cx2.r + cx2.g + cx2.b) / 3;
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float y1= (cy1.r + cy1.g + cy1.b) / 3;
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float y2= (cy2.r + cy2.g + cy2.b) / 3;
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float2 d = float2( (x1-x2) , (y1-y2));
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d-= Offset/10;
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float angle = (d.x == 0 && d.y==0) ? 0 : atan2(d.x, d.y) + Twist / 180 * 3.14158;
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float2 direction = float2( sin(angle), cos(angle));
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float len = length(d);
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float2 uv2 = 0.5 -direction * len * 10* Specularity;
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float4 cc= Image.Sample(texSampler, uv2);
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cc.rgb = lerp(uvImage.rgb, cc.rgb, Shade * Amount );
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cc.a *= uvImage.a;
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return float4( clamp(cc, float4(0,0,0,0) , float4(100,100,100,1)));
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} |