Re: 31 level cliptextures

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Angus Dorbie (dorbie++at++sgi.com)
Fri, 13 Aug 1999 16:50:30 -0700

It's important that you use LOD controls to limit the levels on
individual polygons. This is a hardware limitation. To check the texture
you might want to use the clipfly utility which is available with
Performer, this will be a more empirical test of whether a CLIP texture
has been constructed properly and it handles the LOD controls
automatically.

Cheers,Angus.

Wayne Erchak wrote:
>
> There was a discussion earlier about viewing very large (> 24 level)
> cliptextures. I have an Onyx2 IR2 (Irix 6.4 with Performer 2.2.2) with the
> patches recommended in the clipmapping bugs documentation, and I am getting
> garbage when attempting to view a 26 level cliptexture with the .ct loader. I
> have plenty of texture memory and system ram, and I'm not getting any error
> messages when loading. I can view the cliptexture correctly with the Intrinsic
> software cliptexturing libraries, so I think the format is valid. Does anyone
> have any experience with clipmaps of this size?
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-- 
"One of the best-known folk theorems of software engineering is that
60% to 75% of conventional software projects are either never
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anywhere near true (and I've never met a manager of any experience
who disputes it) then more projects than not are being aimed at goals
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For advanced 3D graphics Performer + OpenGL based examples and tutors:
http://www.dorbie.com/

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