View Full Version : Dielectic Trace Depth Problems

04-05-2007, 02:32 PM
I've got some objects with a dielectric material applied. They are arranged in such a way that it seems the trace depth is broken no matter how high I set it. In the image below, I have it set to:

Reflections 200
Refractions 200
Max 400

And it appears the same as at 2, 2, 4. I don't mind it on the blue objects, but what is happening to the yellow object really sucks. Does anyone have an idea of what to do for this?

04-06-2007, 03:23 PM
I can't tell from this image how your scene would benefit from higher trace depth than 2 2 4. Is there more than 1 layer of a dielectric that we are looking through? What is your dielectric material's index of refraction?

04-08-2007, 10:23 AM
I donīt think your dielectric materials are transparent.

04-11-2007, 08:55 PM
The objects are just cubes with beveled faces as in the example below. When I deleted the bevel on the backside, it got rid of the red stuff, but I still get some black areas on the corners. The IOR is 1.5 for all the materials. I'm assuming this is all just because of the shape of the mesh.

I don't see how a dielectric could not be transparent, I haven't set the colour to black... (

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04-11-2007, 08:55 PM
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