how to render/light a ocean floor ?

[jeremybirn]

First you've got to build it - make the rippled surface, texture it with sand and gunk, litter small rocks and plants around - then light it with a yellow "dappled" key light, a light with a procedural noise breaking it up so it shimmers, and slowly animate the noise, add green and blue fill light from other directions, and add a directional bounce light coming up from the floor to fill in the undersides of things. Add some fog or depth fading to make everything fade with distance, too.

-jeremy

[kaas]

Originally posted by jeremybirn
First you've got to build it - make the rippled surface, texture it with sand and gunk, litter small rocks and plants around - then light it with a yellow "dappled" key light, a light with a procedural noise breaking it up so it shimmers, and slowly animate the noise, add green and blue fill light from other directions, and add a directional bounce light coming up from the floor to fill in the undersides of things. Add some fog or depth fading to make everything fade with distance, too.

-jeremy

really tnx , now i can start !!!

[HippieKiller]

I've never done this but I would suggest the following:

1 Direct lighting straight from above
2 Lots of diffuse lighting using spinning light, skylight or other forms of global illumination or fake radiocity.
3 Lots of volumetric lighting.

optional
4 Shadows from the ripples of the water by using the a black and white map with the ripples and project this straight down on the scene.

[Randolph]

Here's a tutorial about how to get a nice underwater lighting effect. It's for Maya, but I think it can give you some useful hints.

http://www.thegnomonworkshop.com/tutorials/lightfog/lightfog.html

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