Chaos Corona for 3ds Max > [Max] Feature Requests

CoronaVolumeMTL: Bounces parameter?

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cecofuli:
Hello,
my question is related to speed up the calculation of CoronaVolumeMtl (clouds, for example).
As we know, Single bounce only = ON, the rendering time is very low, but also the quality.
When it's ON, the rendering time is HUGE! Almost impossible to use in production.
Corona uses 25 bounces (as a default).
With 5 bounces it's enough to obtain a good quality, with low rendering time.  ( I used a little bit of Emission in my test)
With 10 (with a little of Emission) I have almost the same rendering, but the rendering time is so different!
Maybe it's good idea to add a new parameter to set the light bounces for CoronaVolumeMtl.

We are speaking about  20 minutes (10 bounces) vs 42 minutes (25 bounces) with almost same result!
Ok, I know that we don't want to add too much parameters as in V-Ray, but... here we should do an exception =)


What do you think?

PS: with 5 bounces, I had 8 minutes with NL= 0.7  (^__^)

maru:
Sounds like a good idea, unless that would be very problematic to implement for the devs.

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