Random Pete wrote:
> I have a texture with square areas of transparency which looks like a mesh
> speaker casing. I want specular highlights to show only on the visible areas
> of texture, and not the transparent areas in between. Unfortunately it seems
> the default behaviour is for transparent textures to display highlights
> (which makes sense for glass-like textures but not in this case). Is there
> a way to change this?
> 
> Pete

Is your texture a bitmap (or, png, gif, etc.)? If so, you may have to 
use a texture_map like this:

#declare mytex = pigment{image_map{....regular stuff}}

object{
  myobj
  texture{
   pigment_pattern{ mytex }
   texture_map{
    [0 pigment{mytex} finish{specular 1}]
    [1 pigment{mytex} finish{specular 0}]
   }
  }
}

I hope this makes sense to you. Good luck!

~Sam

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