Hi there,

i have to comment on that discussion a little bit. Would be interesting
to be wrong.

Hidden line removal: this technique is used to solve the visibility of
objects, while
displaying only the border. This technique was used as people started to
think
about 3d graphics on a computer. The algorithms around this topic are
very tricky and
suffer from big constraints the objects must provide. (Elite was the
first game on
the Commodore 64 that used hidden line removal on convex objects).
Especially
HLR is nothing that is funny to do in hardware. So the Java3D API will
not do this
at a feasibly performance.

A second technique to solve the visibility is the Z-buffer algorithm
that keeps track of
the pixels z coordinate when painting a pixel onto the screen. This
approach is quite
easy to accomplish in hardware and every accelerating graphics card uses
z buffering.

The question is: what do you want to accomplish?? If you want to draw a
mesh of an object
it will be without hidden line removal. Hidden line removal is never
on/off using the
Java3D API.


Best regards,

Karsten
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