Re: RE2 subface flicker problem

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Marcus Barnes (marcus++at++multigen.com)
Tue, 6 May 1997 13:06:51 -0700

On May 5, 11:19am, Inge Henriksen wrote:
>
> In our flight database we call external references (signs and so
> fourth), these signs faces have subfaces. These subfaces starts
> flickering when the database reaches a certain size, but seems to work
> fine until this size is reached. Is there a way of correcting this
> without using pfDecal ? Is it a z-buffer memory problem? We have a Onyx
> RE2, and run the software with Performer 1.2.

Since your model uses subfaces you are already using pfDecal. The OpenFlight
loader creates pfLayer subgraphs when it converts subfaces. The reason that you
see z-fighting as your database grows in because you're exceeding the
resolution of the z-buffer.

The simplest way to increase z-buffer resolution is to increase your near-clip
distance from say 1.0 to 10.0 (or similar).

Regards.

--
+ Marcus Barnes, Technical Staff        mailto:marcus++at++multigen.com +
+ Multigen Inc.                         http://www.multigen.com    +
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