problems with transparency

tigartos · Post by **tigartos** » Tue Jan 29, 2013 7:54 pm

I apologize if this topic has been around, but I'm tired of searching a solution.
I need to make clear water for the pool, which will transmit light. I installed the material Rippled water, but it does not transmit light.
What is my mistake? How to fix it?

Zom-B · Post by **Zom-B** » Wed Jan 30, 2013 2:25 am

change rendermode to MLT+Bidir

tigartos · Post by **tigartos** » Wed Jan 30, 2013 2:42 am

Zom-B wrote:change rendermode to MLT+Bidir

I use this method, but it does not work

CTZn · Post by **CTZn** » Wed Jan 30, 2013 2:49 am

Also make sure that the water surface is intersecting the pool walls a bit in order to secure a closed volume.

tigartos · Post by **tigartos** » Wed Jan 30, 2013 3:44 am

CTZn wrote:Also make sure that the water surface is intersecting the pool walls a bit in order to secure a closed volume.

Thank you very much, everything was as I wanted

Zom-B · Post by **Zom-B** » Wed Jan 30, 2013 3:53 am

tigartos wrote:Thank you very much, everything was as I wanted

If you think so, then show me the sun shining inside your pool

tigartos · Post by **tigartos** » Wed Jan 30, 2013 4:39 am

Zom-B wrote:
tigartos wrote:Thank you very much, everything was as I wanted
If you think so, then show me the sun shining inside your pool

you are right
It's not as good as I expected, the water looks realistic only when it does not get sunlight.

Zom-B · Post by **Zom-B** » Wed Jan 30, 2013 4:45 am

tigartos wrote:you are right
It's not as good as I expected, the water looks realistic only when it does not get sunlight.

This is a general Problem with PathTracing, Sun light and specular materials.

Headroom · Post by **Headroom** » Wed Jan 30, 2013 12:49 pm

Yup, pathtracing and caustics don't mix we'll.

Pibuz · Post by **Pibuz** » Wed Jan 30, 2013 10:04 pm

Also, the water material shoud have less opacity since it's a very thick solid and color absorption is proportional to thickness.