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digitalgibs · 19-03-2010, 09:35 PM

I can't say for sure, but you might be over thinking the problem. Try a heavy saturate of the diffuse map, then use that as your specular. Or add a little "render clouds" onto the spec map before you saturate, using some bright/rich colors as the source. Typically saturated spec maps will cause the colors to go a little Fresnel. The other option is to use some kind of Fresnel shader and have the terms use different colors from a ramp texture. Door #2 is obviously much more complicated than trying a saturated spec map

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EDIT: forgot to mention that a cubic environment map is sometimes a easy alternative as well, since it can be low resolution and very diffuse for that type of effect.

19-03-2010, 09:35 PM	#2 (permalink)
digitalgibs New Member 10 - 4	I can't say for sure, but you might be over thinking the problem. Try a heavy saturate of the diffuse map, then use that as your specular. Or add a little "render clouds" onto the spec map before you saturate, using some bright/rich colors as the source. Typically saturated spec maps will cause the colors to go a little Fresnel. The other option is to use some kind of Fresnel shader and have the terms use different colors from a ramp texture. Door #2 is obviously much more complicated than trying a saturated spec map ... EDIT: forgot to mention that a cubic environment map is sometimes a easy alternative as well, since it can be low resolution and very diffuse for that type of effect. Last edited by digitalgibs; 19-03-2010 at 09:40 PM.