Ocean caustics

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Old 10 October 2002   #1
Ocean caustics

Alright, if you have a scene that's under water, and you want caustics glittering over everything in your scene, how do you go about it?

I can apply the 'underwater' texture to all of my surfaces, but that gets very time consuming, and you can't apply procedurals to lights, (so much as I've tried anyway) so is there a simple solution?
Thinking is your escape...
Old 10 October 2002   #2
You can apply images, procedurals, and/or gradients to Lights.
Old 10 October 2002   #3
i'd try making a 2D animation of a procedural that would make that pattern (black and white maybe), because you can give spotlights a projection image, and then just put that animation as the image.
Joel B Fant
The Lyon's Den
Old 10 October 2002   #4
Cool, thanks for the responses,
CIM, what settings do you need lights on to apply procedurals?
Thinking is your escape...
Old 10 October 2002   #5

Also, you could paint an image map and apply it to Spotlight(s) as the Projection Image.
Old 10 October 2002   #6
Oh yeah, I know what you mean. I've tried volumetrics, it works alright, but is a little slow. Image mapping is still unless you envelope it also, so I guess I'll try image maps.
Thinking is your escape...
Old 10 October 2002   #7
a long time ago I created this effect... I made a single quad poly in modeler, loaded the object in layout, placed the camera so it covered the whole poly and then applied the underwater texture to my liking and rendered a b/w image sequence, then I loaded the image seq. back in layout and used it as a light gel. Worked quite well. Now I use the same image sequence whenever I need it 8-).

hope that helps you.

Motion Blur's A Step Below
Old 10 October 2002   #8
this was done with a animated texture and volumetric lighting
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Old 01 January 2006   #9
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