wehub-resource-sync
102 lines
2.8 KiB
HLSL
102 lines
2.8 KiB
HLSL
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static const float3 Quad[] =
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{
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float3(-1, -1, 0),
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float3( 1, -1, 0),
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float3( 1, 1, 0),
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float3( 1, 1, 0),
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float3(-1, 1, 0),
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float3(-1, -1, 0),
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};
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cbuffer Transforms : register(b0)
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{
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float4x4 CameraToClipSpace;
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float4x4 ClipSpaceToCamera;
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float4x4 WorldToCamera;
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float4x4 CameraToWorld;
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float4x4 WorldToClipSpace;
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float4x4 ClipSpaceToWorld;
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float4x4 ObjectToWorld;
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float4x4 WorldToObject;
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float4x4 ObjectToCamera;
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float4x4 ObjectToClipSpace;
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};
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cbuffer Params : register(b1)
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{
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float2 GridSize;
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float2 CellSize;
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float2 CellPadding;
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float2 TextOffset;
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float4 Color;
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float3 OverridePosition;
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float OverrideScale;
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float4 HighlightColor;
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float OverrideBrightness;
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};
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struct GridEntry
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{
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float2 gridPos;
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float2 charUv;
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float highlight;
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float3 __filldummy;
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//float2 size;
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//float2 __filldummy;
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};
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struct Output
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{
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float4 position : SV_POSITION;
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float2 texCoord : TEXCOORD;
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float4 color : COLOR;
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};
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StructuredBuffer<GridEntry> GridEntries : t0;
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Texture2D<float4> displaceTexture : register(t1);
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sampler texSampler : register(s0);
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Output vsMain(uint id: SV_VertexID)
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{
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Output output;
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int vertexIndex = id % 6;
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int entryIndex = id / 6;
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float3 quadPos = Quad[vertexIndex];
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GridEntry entry = GridEntries[entryIndex];
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float2 samplePos = float2(0,1)+entry.gridPos * float2(1,-1);
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float4 overrideColor = displaceTexture.SampleLevel(texSampler, samplePos - (TextOffset.xy * float2(1,-1) % 1) / GridSize, 0);
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overrideColor = clamp(overrideColor, 0, float4(1,100,100,1));
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float overrideDisplace = overrideColor.b;
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float overrideScale = overrideColor.g;
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float overrideBrightness = clamp((overrideColor.r * 0.5 + overrideColor.b * 0.3 + overrideColor.g * 0.2) * overrideColor.a,0,1);
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float2 centeredGridPos = float2( (entry.gridPos.x - 0.5) * GridSize.x,
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(-0.5 + entry.gridPos.y ) * GridSize.y
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);
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centeredGridPos.xy += TextOffset.xy * float2(-1,1) % 1;
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float3 posInObject = float3( centeredGridPos * CellSize,0 );
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//objectPos += float3(GridSize.x *-0.5, +GridSize.y * 0.5 ,0);
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posInObject+= float3( overrideDisplace * OverridePosition);
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float4 quadPosInWorld = mul(float4(posInObject.xyz,1), ObjectToWorld);
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quadPosInWorld.xy += quadPos.xy * CellSize * (1- CellPadding) * (1+overrideScale* OverrideScale) /2;
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float4 quadPosInCamera = mul(quadPosInWorld, WorldToCamera);
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output.position = mul(quadPosInCamera, CameraToClipSpace);
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//output.position.z = 0;
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output.color = lerp(Color, HighlightColor, entry.highlight) * overrideBrightness;
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output.texCoord = (entry.charUv + quadPos * float2(0.5, -0.5) + 0.5)/16;
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return output;
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} |