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I can fix it locally by setting the following line in "advancedInteraction" function: float fresnelTerm = pow(1.0 - max(dot(localV, RawN), 0.0), fresnelParms2.w); Note that I have added max to dot product, otherwise the base of exponent can get quite high, which causes the sparklies. |
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Fixed in svn rev 15522. Also I found that this max was present in the old ARB code: //--------------------------------------------------------- // Calculate Fresnel reflectance approximation for Diffuse lighting //--------------------------------------------------------- fresnelTerm.x = clamp(dot(toViewer.xyz, localNormal.xyz), 0.0, 1.0); //DP3_SAT fresnelTerm.x, toViewer, localNormal; fresnelTerm = (vec4(1)) - (fresnelTerm); //SUB fresnelTerm, 1, fresnelTerm; fresnelTerm = vec4(pow(fresnelTerm.x, fresnelParms2.w)); //POW fresnelTerm, fresnelTerm.x, fresnelParms2.w; |
- Anonymous
