On 1/25/22 02:21, Thomas de Groot wrote:
> That milky glass effect is quite nice imo, while the lower right sphere 
> seems strongly overdone. Food for thoughts... especially the milky glass.

Agree, though, I still don't get what all is happening there to get the 
milky effect. On the overdone sphere - remember I'm testing limits not 
going for any given look. Even the milky effect I found by using bump 
sizes larger than what I think most would / should typically use in 
practice.

I'm thinking some of the milkiness is coming from getting less overall 
reflection because some of the normals are inverting and some not - some 
we see more of the metallic effect in the result. More of the raw color 
shows through.

The reflections which are there are no longer fuzzy though, which has me 
puzzling. A significant number are pointing away / against the raw 
surface normal sphere rather than mostly being aligned. Guessing we are 
hitting some limit where maybe the perturbed normal gets ignored or 
something except maybe for being inverted. I don't know! I'd have to 
spend more time in the code to figure it out. The question is rattling 
around up there in my empty space - maybe the reasons will fully come to me.

I'll attach another image using again the milky effect, but on three 
star mesh include stars. Appropriate given Mike-the-elder was about on 
these newsgroups again recently after years away. His star mesh code / 
and version of it, I've used quite a bit over the years. Anyhow, the 
milky look is a little different than with the spheres I think, the 
environment is different too...

Bill P.

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