OTOY Forums

HI all,

can anyone give me some help to create the appearance of depth in water from above. I want to make it look as though the depper parts are actually deeper in colour when looking from above as in real life. When i put a water material on a surface plane or on a solid box it doesn change the appearance.

Any ideas.

I have attached some quick experiments

Cheers

Tim

Hi Tim,

I've never tried to do this myself, however a while back I remember reading the thread below, which had very convincing water in it showing depth like you are talking about. if you scroll on down, there's a link to the material. I hope this helps!

http://render.otoy.com/forum/viewtopic. ... +and+water

I'm sure there would be some combination of "scattering" and/or "absorption" with "transmission" which would achieve this. You may have to hav the water as an enclosed solid, and a separate water surface to provide the reflections.

You could also try making the bottom of the pool an emitter so the emitted light get absorbed more by the deep water.

Paul

Thanks Bendbox

That attached material look great. Thats the sort of thing Im trying to do. Thanks for that. Are we able to use 3DMAX materials???

Thanks Paul, yeah ive tried a closed box solid but it didnt seem to make a difference. Ill have do do a bit more experimentation with those things you mentioned as I still havnt really got my head around how they work.

Ill let you know how I go.

Cheers

Tim

alfabruce wrote:Are we able to use 3DMAX materials???

Cheers

Tim

Do you mean directly, as in a native 3D Max material? Or a 3D Max Octane material to a Rhino Octane material? Directly, I don't think so, but maybe with the new alembic format it's possible to transfer Octane materials between Octane plugins. Maybe someone else can answer this better!

alfabruce wrote:Thanks Bendbox

That attached material look great. Thats the sort of thing Im trying to do. Thanks for that. Are we able to use 3DMAX materials???
..

Tim

Hi, Tim.

If You use OctaneRender in 3dsMax You need to setup Octane materials - so if You want to use them in Standalone application simply copy paste parameters =) if You don't have 3dsMax, drop a line & I'll make printscreens or material in StandAlone =)

Cheers

There is a standalone scene later in the thread. The key is to add a bit of absorption to water. This will make it appear darker as the water gets deeper. An approximation for the physical absorption value for water would be an RGB color of (0.50, 0.05, 0.01) for the absorption input and a scale of 1.0.

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Roeland