Corona Interactive vs Vray RT (CPU)

[sukk741]

Thanks for the explanation SairesArt! As far as I know Vray 3.3 changes are now reflected caustics by default. It also has the ability to take off when needed.

[SharpEars]

So what is the state of caustics, reflective and refractive in the latest version of Corona for 3ds max? Are they available in the progressive production renderer or not?

[Romas Noreika]

Reflective GI caustics are different that "Caustics" ))
Corona do it (Reflective GI caustics) by default. Also VRay now.

I assume you know that reflective caustics in vray only works with BF+LC and works a lot better in BF+BF.

IT does not work with IM+LC. When you press render in IM +LC look at the log, it will say reflective caustics will be turned off or will not work something like that. Basically you have to use BF for it to work.

Just to let you know :) And Vray BF+LC is slower than corona. Tested

[maru]

So what is the state of caustics, reflective and refractive in the latest version of Corona for 3ds max? Are they available in the progressive production renderer or not?

Yes, they are, but:
1. Are usually clamped by MSI
2. Are usually converging very slowly
There are no optimizations made for caustics rendering yet, so rendering them could be tricky, but the answer to your question is yes.

[SharpEars]

So what is the state of caustics, reflective and refractive in the latest version of Corona for 3ds max? Are they available in the progressive production renderer or not?

Yes, they are, but:
1. Are usually clamped by MSI
2. Are usually converging very slowly
There are no optimizations made for caustics rendering yet, so rendering them could be tricky, but the answer to your question is yes.

The question about the reflective/refractive caustics was with regard to Corona 1.5 (or 1.6 if there are improvements to caustics behavior/performance in that version).

If caustics are clamped by MSI, does a value of higher than the default of 20 make them more visible (and/or converge faster)? I don't think that the MSI gets changed very often by users, in fact the tooltip advises against changing it if I remember correctly.