Richard Borsheim <rbo### [at] shawca> wrote:
> This is standard practice when modelling for games. Certainly Direct3D
> supports it and correctly renders it (in my experience). It is an incredibly
> effective technique (as long as you don't look too closely :-) )

  Then how would you render clear glass (with highlights) with such engine?

> For example
> the holes punched through the side of the wheel supports in this image
> (http://www.amabilis.com/gallery/Alex%20Grigny%20de%20Castro%20-%20Sojourner
> %20-%20Large.jpg) would not be renderable with POVRay.

  Why not? There have been several mentions about image_pattern in this
thread. You can use it to get that effect.

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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