diamond scene

[polyman]

It looks pretty good. I always find that diamond scenes look better if the ground its on is a darker color. Your caustics look accurate but the light thats hitting the diamond seems a little too intense. I'm a FinalRender user so I don't know the Vray specifics.

[Arnage]

Because of the high ior of a diamond you'll want some dispersion to make it look more realistic, since vray doesn't support dispersion you can fake it with a trick that was posted here recently, just render 3 times with the ior of red, green and blue light and then in photoshop take the different color chanels from the different renders and you get a nice dispersion effect with some little colorful sparks in the diamond.

[gnarlycranium]

You might actually want to look up the 3D Lapidary site for reference, they have accurate models of gemstones there-- if your raytracing is realistic, the angles of the cuts are actually VERY specific to get a good effect, subtle differences can ruin the way the gem catches light.

[CapnPanic]

a page about simulating dispersion with standard (non-dispersive) raytracers:

http://www.mentis.ca/design/graphics/dispersion/

[veto]

ok, thank's for your quick help guys.
that's the best result i could achieve, but it was donne with the normal scanline render.
maybe someone can tell me how to make a vray material for my diamonds. that would be good for the caustics.

http://www.upart2.de/mav/hd.jpg

[ajsfuxor]

hey veto, love the final result, i too have to do something similar! Any chance u could give me some tips on the material used and setup? Anychace u could email me the files so i could dig through them??? Cheers

[mash1000]

Yes that is very interesting topic, give some advice guys how you done these diamonds!:beer:

[fufanu]

here's a page about faking dispersion in V-Ray
http://myweb.tiscali.co.uk/elvis/dispersion.html

[mash1000]

THX!! I needed that one :P

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