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MrMint
06-15-2010, 02:10 PM
I have been fiddeling arround with fluids to see how big the render-time-impact is. But there are
2 issues I stuck at.

The first is...somehow I am not able to create the lightbeams from the caustics. I might have missed something but the only option might be responsible for that is the photon volume in the rendering-lighting-tab which I obviously turned on and played around with.

http://img692.imageshack.us/img692/1763/caustics2.th.jpg (http://img692.imageshack.us/i/caustics2.jpg/)


The second, hmm dont know how to tell..
If I take a look at the picture below it seems that the brightness/density of the water is dependent from the viewers position. It gets more dark and opaque in the background and pretty clear in close range. When I try to recreate this by playing with the density, transparency or opacity it looks like I am getting a constant fog rather than a linear increasing one. If I put the values down, I can see the physical-sun-horizon. If I put them up I cant even see things in close range or in a very foggy manner.
I hope you dont mind my lack of technical terms.


http://www.oceanlight.com/spotlight.php?img=02796

This becomes more apparent with a situation with total-internal-reflection
http://www.oceanlight.com/spotlight.php?img=00598

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