71 lines
1.3 KiB
Plaintext
71 lines
1.3 KiB
Plaintext
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Shader "Immersal/Point Cloud"
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{
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Properties
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{
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}
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SubShader
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{
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Cull Off
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Tags{ "RenderType" = "Opaque" }
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LOD 100
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Pass
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{
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#pragma target 3.0
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#include "UnityCG.cginc"
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float _PointSize;
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fixed _PerspectiveEnabled;
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fixed4 _PointColor;
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struct Vertex
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{
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float3 vertex : POSITION;
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};
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struct VertexOut
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{
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float psize : PSIZE;
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float4 center : TEXCOORD0;
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half size : TEXCOORD1;
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UNITY_FOG_COORDS(0)
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};
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VertexOut vert(Vertex vertex, out float4 outpos : SV_POSITION)
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{
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VertexOut o;
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outpos = UnityObjectToClipPos(vertex.vertex);
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o.psize = lerp(_PointSize, _PointSize / outpos.w * _ScreenParams.y, step(0.5, _PerspectiveEnabled));
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o.size = o.psize;
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o.center = ComputeScreenPos(outpos);
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UNITY_TRANSFER_FOG(o, o.position);
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return o;
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}
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fixed4 frag(VertexOut i, UNITY_VPOS_TYPE vpos : VPOS) : SV_Target
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{
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fixed4 c = _PointColor;
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float4 center = i.center;
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center.xy /= center.w;
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center.xy *= _ScreenParams.xy;
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float d = distance(vpos.xy, center.xy);
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if (d > i.size * 0.5) {
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discard;
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}
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UNITY_APPLY_FOG(input.fogCoord, c);
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return c;
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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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