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88 lines
1.9 KiB
88 lines
1.9 KiB
1 year ago
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float getMaxEdgeLen(float3 v0, float3 v1, float3 v2)
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{
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float maxEdgeLen = distance(v0, v1);
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maxEdgeLen = max(maxEdgeLen, distance(v1, v2));
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maxEdgeLen = max(maxEdgeLen, distance(v2, v0));
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return maxEdgeLen;
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}
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v2f_surf copyV2fSurf(v2f_surf p0, float dx, float dy)
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{
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v2f_surf p;
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p = p0;
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p.pos = p0.pos + float4(dx, dy, 0, 0);
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return p;
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}
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//[maxvertexcount(1)]
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//void geom_point_surf(point v2f_surf input[1], inout PointStream<v2f_surf> outStream)
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//{
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// v2f_surf p0 = input[0];
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//
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// if (p0.idxMask.y)
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// {
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// outStream.Append(p0);
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// outStream.RestartStrip();
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// }
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//}
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//[maxvertexcount(2)]
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//void geom_line_surf(line v2f_surf input[2], inout LineStream<v2f_surf> outStream)
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//{
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// v2f_surf p0 = input[0];
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// v2f_surf p1 = input[1];
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//
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// if (p0.idxMask.y && p1.idxMask.y)
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// {
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// outStream.Append(p0);
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// outStream.Append(p1);
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// outStream.RestartStrip();
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// }
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//}
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[maxvertexcount(6)]
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void geom_tri_surf(triangle v2f_surf input[3], inout TriangleStream<v2f_surf> outStream)
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{
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v2f_surf p0 = input[0];
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v2f_surf p1 = input[1];
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v2f_surf p2 = input[2];
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if (_IsPointCloud)
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{
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if (p0.idxMask.y)
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{
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float dxy = min(_ColorTex_TexelSize.x, _ColorTex_TexelSize.y) *_CoarseFactor;
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p1 = copyV2fSurf(p0, dxy, 0);
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p2 = copyV2fSurf(p0, 0, dxy);
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v2f_surf p3 = copyV2fSurf(p0, dxy, dxy);
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outStream.Append(p0);
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outStream.Append(p1);
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outStream.Append(p2);
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outStream.RestartStrip();
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outStream.Append(p1);
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outStream.Append(p3);
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outStream.Append(p2);
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outStream.RestartStrip();
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}
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}
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else
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{
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if (p0.idxMask.y && p1.idxMask.y && p2.idxMask.y && getMaxEdgeLen(p0.vertexPos, p1.vertexPos, p2.vertexPos) < _MaxEdgeLen)
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{
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//p0.worldNormal = p1.worldNormal = p2.worldNormal = cross(normalize(p1.vertexPos - p0.vertexPos), normalize(p2.vertexPos - p0.vertexPos));
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outStream.Append(p0);
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outStream.Append(p1);
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outStream.Append(p2);
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outStream.RestartStrip();
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}
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}
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}
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