Thanks for the many helpful ideas on this problem but maybe I need to
expound a little further on my needs.

1. For my application the top of the 'wall' always remains at the same
level. Hey! that should make it simpler.

2. As the height_field rises, less of the wall is seen. At an extreme the
wall disappears into the height_field. The wall base can be at the base of
the height_field.

3. I need to texture the wall. I say this since some solutions with a simple
color do not appear to work the same way when a texture is involved.

4. I have several/many wall sections scattered throughout the image. My
preference would be to put generalized code into the .ini file for all of
the wall sections and then put the center-line co-ordinate list(s) into the
.pov file which is, in turn, created by a source generating program.

David

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David Vincent-Jones wrote:
> 
> Thanks for the many helpful ideas on this problem but maybe I need to
> expound a little further on my needs.
> 
> 1. For my application the top of the 'wall' always remains at the same
> level. Hey! that should make it simpler.
> 
> 2. As the height_field rises, less of the wall is seen. At an extreme the
> wall disappears into the height_field. The wall base can be at the base of
> the height_field.
> 
> 3. I need to texture the wall. I say this since some solutions with a simple
> color do not appear to work the same way when a texture is involved.
> 
> 4. I have several/many wall sections scattered throughout the image. My
> preference would be to put generalized code into the .ini file for all of
> the wall sections and then put the center-line co-ordinate list(s) into the
> .pov file which is, in turn, created by a source generating program.
> 
> David


Hello,

the answer to this posting may be appreciable delayed and I did mail the
following file to David himself already. But since I imagine, that could
be of more general interest, I'll post it here too.

The code provides the possibility for generating any polygonal shaped
"wall" structures only by defining the center-line coordinate list. This
may also be done using a separate .inc file generated elsewhere. 

Each of the segments is textured in the same manner automatically and
not dependant on its position or direction on the plane. 

ReVerSi

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