Reinhard:

There will, however, remain the problem that real walls have tops
which are laterally flat, even though they track the terrain 
longitudinally.  This is not as easily resolved.... but depending
on the viewpoint and the nearness of the wall to the camera, it
may not be necessary to address it.

Let us know how the image turns out...

Dan


ReVerSi wrote:
> 
> Dan Connelly wrote:
> >
> > Depending on the complexity of the terrain and the scales
> > involved, it might also be a good idea to run the original height
> > field through a smoothing filter....
> 
> Very good idea indeed; on discussing the matter in detail with David,
> I'd seen this problem, especially if walls are not quite narrow and the
> height_field has a considerable slope perpendicular to the axis of the
> wall segment. Then the top of the wall will not look quite clean.
> 
> But your suggestion should solve this too. I'll make smoothing the
> terrain directly with leveller, the program that creates the
> height_field too. Then I'll save both height_fields and take the
> smoothed for intersection (top) and the unsmoothed for union (foot) of
> the wall.
> 
> Thanks.
> Reinhard

-- 
http://www.flash.net/~djconnel/

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