RE: ASD and terrain variability

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Lee Willis (lee++at++accesscom.com)
Thu, 2 Oct 1997 12:40:04 -0700

The MultiGen ASD terrain generator (CAT) builds the terrain mesh to a variable depth, depending on roughness. So over water, it would only build 1 LOD, over flat terrain, it would build few LODs, and over rough terrain, it would build many

The run-time playback algorithm itself isn't well suited to making those decisions. It's more of a database generation issue.
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Lee Willis Software Architect
Lwillis++at++terrex.com Terrain Experts, Inc.

-----Original Message-----
From: perfly++at++segolene.roazhon.inra.fr [SMTP:perfly++at++segolene.roazhon.inra.fr]
Sent: Thursday, October 02, 1997 9:03 AM
To: info-performer++at++sgi.com
Subject: ASD and terrain variability

Salut.

Is it possible to use the Active Surface Definition describe
by the pfdLodMesh structure, with the depth (LOD) of the subtree
of faces depending on terrain variability?

For example:
1 level for the sea,
2 levels for areas with quite constant slope,
..
10 levels for areas with very variable slope.

Thanks for all

Kenavo

           
     
        
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