Caustics Noise

[psychoo]

Hi Folks,

I'm getting a lot of noise in the caustics of my IES light and I'm running out of ideas what to do about it.
Any suggestions?



Regards
Barnabas

[tashko.zashev]

Hi,

Maybe Direct visualization is turned on from the Caustics parameters? It can introduce some noise to the final render result.

[psychoo]

Thanks it helped! Now it's totally diefferent thoguh it's too blurry!

[Komposer]

I´m not sure, but would try these:
1. deactivate GI (not sure if the IES light will emmit then...)...is the noise the same huge amount?
2. activate "use local subdivs" - for me much much better to all the different issues - and set "min shading rate to 1"...what happens?
3. try 2 "max subdiv" extrem settings...instead of 24 - try 12 or 48....what happens?
4. try much higher caustics (I remember that I used 6000 before I was happy)
These are the step´s that I would make in this situations.
Hope it will bring better result´s...

[psychoo]

Thanks for your reply, I tried a couple of things, but in the end I had to fake the effect. Caustics doesn't seem very useful or developed/supported in vray.