Hello, (did send this also to support but if they are busy, maybe someone else could help?)
I try to render caustics with refractive and reflective object. I can see caustics photon count after the rendering but in the rendering theres no caustics, even in caustics render element.
Is this a bug or am I missing something(In my experience with MAX nothing special should done to get caustics visible)?
I using Vray nightly 24501 and Maya 2013 SP2.
make sure ur min and max distance is specified. Also u can put multiplier to 99999 to troubleshoot it further.
hello,
i’m also trying to get the caustics to work (vray 3.0, maya 2015).
i have to decrease the multiplier value either in the render settings or within the light to ridiculous high values.
with physical sun&sky / physical camera i have to crank up the numbers even more.
i know those kind of odd numbers / compared to defaults from the old mental ray days (there was a cm2 factor for conversion between standard maya and mr physical sun …)
am i doing something wrong?!
br matt
well - it definitely has something to do with physical camera and light decay . .. but i don’t get the logic behind
Thanks mate, this helps!
I just have to lift up search distance and multiplier and there they are. Now the tweaking starts to get a proper looking caustics 
Also use the min distance. It helps optimize it further…
Hmm, I cant find it, is it Vray 2.4 feature?
sorry I mean max density.
is there a specific number instead of 99999
something like (inverse) square root of distance?!
we use a factor of 27 for our hdr-images when rendering with physical camera . ..
Its just a multiplier. It multiplies ur light and other sources caustics thini…
well - i know about the multiplier, but do we really have to eyeball the values?!
I think it should work just fine with default multiplier values…
