"Greg M. Johnson" wrote:
> [...]
> The Bricktex defintion includes a normal{bumps scale 0.01} .
> 
> I want the BlackGlasstex definition to have its normal be "inny",
> "down", or  "flat & depressed"  **RELATIVE** to the bricks.  How do I do
> this?
> 
> I think it would be wonderful if I could simply say normal{down} .

I'm not sure if i understand what you mean, but have you tried slope_maps?
Furthermore remember that normal{} only changes the normal vector but not
the geometry.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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