Occulting problems with polygon subfaces in Performer

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John Wintle (modellers++at++intersim.co.uk)
Tue, 15 Oct 1996 14:19:17 -0100

Help Performer people,

We are currently using ModelGen/Multigen II to create databases for use
in Performer 2.0. The problem that we have is that subfaces (polygons
attached to polygons) do occult properly. The child polygon is in the
same plane as the parent, but still occasionally seems to get occulted
by it. The subfaces also occult 3d items in the database, which are not
attached to the parent polygon, i.e. a building on top of a concrete
base.
   We are using Performer 2.0 on High Impact machines with Irix6.2, and
we get the same problem whether we use our own app or perfly.

Does anyone have any idea what is going wrong here.

-- 


Regards,


John Wintle,
Principal Visual Modeller,
Intersim Limited, Units 7-8, Thorgate Road, Littlehampton. Sussex. UK
Tel: +44 (0)1903 733428
Fax: +44 (0)1903 730246
email: modellers++at++intersim.co.uk


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