Making holes in pfEarthSky.

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Simon Dimaio (simond++at++ee.ubc.ca)
Mon, 19 May 1997 17:51:40 -0700 (PDT)

Hi

I am currently working on a simulation of an excavator (used for digging),
using Performer 2.0 (IRIX 5.3). The excavator has been modelled and is
working well, however animating the digging has proved to be little
tricky. I am able to produce a reasonably convincing hole in the ground,
but am not able to integrate this with the ground created by using a
pfEarthSky. An ideal solution would be the ability to make parts of the
"Earth" transparent, revealing the hole underneith. Is there a way of
doing this?

Another option would be to use a fine mesh instead of the "Earth",
allowing for deformation during digging. This option would require a large
number of mesh points and would be rather inefficient.

I would appreciate any suggestions or solutions.

Thanks for your time.

Regards
Simon Dimaio

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