caustics behind dielectric??

Slobodan · Post by **Slobodan** » Sat Dec 01, 2007 11:49 am

I'm reading that MLT based renderers have issue with caustics behind dielectrics. What's the deal with that?? Can Indigo do those??

Thanks,

Slobodan

Kram1032 · Post by **Kram1032** » Sat Dec 01, 2007 11:54 am

yes it can, since some time, now.
There already was a HUGE test-thread, which showed the problem and went on, when the problem was solved and much more recently, there was a test, again

You just need to make sure, that your Max_num_consec_rejections (a render-setting, found in the inifile and in theory also in your exporter's gui) is at at least 1000 - then, you should see caustics through transparent stuff

CTZn · Post by **CTZn** » Sat Dec 01, 2007 5:48 pm

Or you don't use bidir and wait some more...

Slobodan · Post by **Slobodan** » Sun Dec 02, 2007 4:55 pm

Thanks for reply guys..
I was at NextLimit forum and some people bitched about not being able to see caustics behind transperent stuff. Someone said that is common for MLT renderers. I was sure though that indigo can do that..

Kram1032 · Post by **Kram1032** » Mon Dec 03, 2007 3:54 am

as I said, it can, but not since too long

CoolColJ · Post by **CoolColJ** » Wed Dec 05, 2007 12:18 pm

as long as you have bidrectional on and MLT with MNCR at least 1000 then you will see them given enough rendering time

Maxwell is just Path tracing, no MLT there, so you will never see caustics behind glass ever

need MLT for that

psor · Post by **psor** » Wed Dec 05, 2007 12:28 pm

" ... need MLT for that"

That's the point!

take care
psor

caustics behind dielectric??

caustics behind dielectric??

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