Simon de Vet wrote:
> 
> Derek Zahn wrote:
> 
> > Thanks to Bob and Chris for your help!  In many instances this seems to do
> > what I want!
> 
> The problem with these techniques is that the rust/stains are randomly located
> (more or less).. doesn't work well for rust on the edge of a car door, or a
> stain below a dripping faucet.
> 
> In cases where stains must be precisely located, try an imagemap, or model
> them directly (blobs for rust, maybe...)

Small height fields work good for rough rust and can be applied precisely
where needed.

-- 
Ken Tyler

See my 850+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html

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