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Welcome to Fractal Forums > Fractal Software > Programming > Fragmentarium > GI issues
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Author Topic: GI issues  (Read 1185 times)
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Crist-JRoger
Fractal Fertilizer
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Posts: 389



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« on: January 25, 2017, 03:15:55 PM »
Found some bugs in all GI tracers:
1. Hacked shadows - looks like reflection (not news i think) So caustics on shadow from glass ball looks good.


Found line
Code:
if(bLightRay)drl*=abs(m.refrRefl)+(GloubiGoulba*GloubiGoulba); else fgrl+=hit.x;
If change to
Code:
if(bLightRay)drl*=abs(m.refrRefl)-(GloubiGoulba*GloubiGoulba); else fgrl+=hit.x;
shadows looks good, but caustics disappears  cry


with some ambient light



2. Emissive light. Artifacts when use it with small lightsize. See: 1st no emissive; 2 - emissive enabled, small size; 3 - emissive enabled, large size; 4 - two emissive lights looks crazy


Any ideas how to fix?
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crist-jroger.deviantart.com
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