80 lines
1.7 KiB
Plaintext
80 lines
1.7 KiB
Plaintext
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Shader "Hidden/LIV_ClipPlaneSimpleDebug"
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{
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SubShader
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{
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Tags { "Queue" = "Overlay" "LightMode" = "Always" "IgnoreProjector" = "True" "ForceNoShadowCasting" = "True"}
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Pass {
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Name "CLIP_PLANE_SIMPLE_DEBUG"
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Cull Off
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ZWrite On
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Fog{ Mode Off }
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CGPROGRAM
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#pragma target 4.6
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#pragma vertex VertexProgram
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#pragma fragment FragmentProgram
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#pragma geometry GeometryProgram
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#include "UnityCG.cginc"
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struct VertexData {
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct VertexToGeomData {
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct GeomToFragData {
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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float3 barycentric : TEXCOORD1;
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};
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VertexToGeomData VertexProgram(VertexData v)
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{
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VertexToGeomData o;
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o.vertex = UnityObjectToClipPos(v.vertex);
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o.uv = v.uv;
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return o;
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}
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[maxvertexcount(3)]
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void GeometryProgram(triangle VertexToGeomData p[3], inout TriangleStream<GeomToFragData> triStream) {
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GeomToFragData pIn;
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pIn.vertex = p[0].vertex;
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pIn.uv = p[0].uv;
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pIn.barycentric.xyz = float3(1.0, 0, 0);
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triStream.Append(pIn);
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pIn.vertex = p[1].vertex;
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pIn.uv = p[1].uv;
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pIn.barycentric.xyz = float3(0, 1.0, 0);
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triStream.Append(pIn);
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pIn.vertex = p[2].vertex;
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pIn.uv = p[2].uv;
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pIn.barycentric.xyz = float3(0, 0, 1.0);
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triStream.Append(pIn);
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}
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fixed4 FragmentProgram(GeomToFragData i) : SV_Target
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{
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float3 barys;
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barys.xy = i.barycentric;
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barys.z = 1 - barys.x - barys.y;
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barys = smoothstep(0.0, 0.0 + fwidth(barys), barys);
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return lerp(float4(0.0, 0.0, 0.0, 0.5), float4(0.0, 1.0, 0.0, 0.5), min(barys.x, min(barys.y, barys.z)));
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}
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ENDCG
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}
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}
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}
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