Hi,
When both highlight and reflection glossiness are 1.0 then the subdivisions always default to 8 and cannot be changed (Changing that number and pressing apply has no effect).
However, if any of the glossiness values is changed, only then a new sudbiv number can be retained. If both glossiness values are set back to 1.0 again then the subdivs jump to 8 automatically.
Is this by design ?
Beta9: Reflection Subdiv
If glossy=1.0 this means no glossy, so the subdiv value has no effect at all. But I agree it is annyoing that it resets to 8 each time you go back to glossy 1.0.
Beta9: Reflection Subdiv
I think it is the opposite… 1.0 means full gloss (totally shinny) and 0.0 means full blur.
Beta9: Reflection Subdiv
Yeah sorry, the term glossy in 3D world got a wrong meaning. Many times, people call a blurry reflection a glossy one… That’s confusion coming from the name next to the value. I’m sure you know what I meant 
1.0 means no blur, so the subdiv value has no use then.
Beta9: Reflection Subdiv
I know what you mean
Just wanted to make sure about the use of the term, because I have noticed a good deal of confusion in this regard … some people even tried to brainwash me sometime ago over at CGtalk :twisted:
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Hehe yeah, it took me a while to suddenly see that I was using the wrong term for years, and now I still do
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Wouter, in this case (fully shinny) what controls the quality of the reflections ?
Some engines (such as AIR) have a separate control for the definition of the reflected images, is this not the case with Vray (are they always traced at best quality when glossy=1.0) ?
Beta9: Reflection Subdiv
Yes they are always at best, it is the AA that controls the quality. Subdivs are only necessary for blurry stuff like blurry reflections, area shadows, DOF etc…
A sharp reflection is always good, so the quality depends on AA, just like the quality of your objects edges for example.
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I see.
Thanks Wouter !