Caustic photons

[markus_s_cg]

Hi, I don't have much experience with rendering caustics. How can I improve this so I get rid of the small specs?
I have 15000 photons emitted from a domelight in an area, and it takes a bit of time to render at 8000x8000 px even with DR. Should I just increase search distance and Max Photons? If I increase the number of photons even more it will become insanely slow.

Using Vray Next, not the new progressive photons.

[waaazoo]

I don't have much experience too with caustics, but I think you have no chance to get good caustics from a domelight. You have to cheat and create a light that generates caustics, as small as possible (the light). This light will affect nothing except generate caustics.

[markus_s_cg]

Sorry, apparently I posted in the wrong group. This should've been in the vray for Max CPU forum, not GPU...