In article <eric.medlin-1EE335.13520623032004@news.povray.org> , Eric Medlin
<eri### [at] ipapercom>  wrote:

> OK, I think I get what you are saying now and that does fit what I am
> observing.  So the image pattern is placed in the unit cube then in this
> case acts as a mask to determine which normals go where.  Then this flat
> image of normals is applied to the box.  I was thinking it applied the
> image pattern to the object then masked off the normals.  I got this
> ideal in my head when I read the last part of 6.7.11.20 Image Pattern
> where it talks about using it to create masks.  I just thought the image
> could be uv mapped onto and object and act like a mask for maps.  So my
> new question is how can I use an image as mask to determine where
> different normals will go put will not scale the patterns I am using as
> normals unless I insert scale x.

Hmm, everything will work as expected if you use either uv-mapping for
normals and pigments or you don't use it for either.  Otherwise, you will
need to make adjustments anyway as uv-mapping depends on the object type,
and not all objects' uv-vectors are as trivial as those of a box.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

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