On 18.06.2010 19:06, Eduardo Poyart wrote: > Can't Mohit's tool do the same? In other words, it could read the > texture and use it as the answer to his question of what percentage of > photons are reflected from a surface.
Part of the issue is that the diffuse texture combines two pieces of information - the reflectivity and the color. (Compare: dark red vs bright red - same base color, but different perceived reflectivity.) But well, if I had to invent a way that only uses that diffuse texture, I would try to extract these two bits from the combined texture color (like, normalize color value + use factor relative to original color as the reflecitivity). -f.r.
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