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Fix for light point sprite shader when light definition is initially small and creates nmerical issues

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This commit is contained in:
Thorsten Renk 2019-10-06 11:26:42 +03:00
parent 5fee17501b
commit 1ab8786d37
1 changed files with 7 additions and 3 deletions
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10
Shaders/surface-light-ALS.vert
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@ -25,13 +25,17 @@ void main()
rawPos = gl_Vertex.xy;
float dist = length(relPos);
float angular_fade = 1.0;
//if (length(gl_Normal)> 0.0)
if (is_directional)
{
angular_fade = 2.0 * max(0.0,-dot(normalize(gl_Normal), normalize(relPos)));
}
float lightScale = size * size * size * size * size/ 500.0 *angular_fade;
pixelSize = min(size * size/25.0,lightScale/dist) ;
float size_use = size;
if (size_use < 10.0) {size_use = 20.0;}
float lightScale = size_use * size_use * size_use * size_use * size_use/ 500.0 *angular_fade;
pixelSize = min(size_use * size_use/25.0,lightScale/dist) ;
pixelSize = min(pixelSize, max_size);
gl_PointSize = 2.0 * pixelSize;
}