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This message from Dylan was bounced because majordomo is crazy about e-mails that begin with the word "help"...

Steve

From manta-owner@sci.utah.edu Tue Jun 13 22:20:34 2006

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Message-ID: <448F8E8B.1010506@cs.utah.edu>
Date: Tue, 13 Jun 2006 22:20:27 -0600
From: Dylan Lacewell <lacewell@cs.utah.edu>
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To: manta@sci.utah.edu
Subject: help with gridded group
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Hi folks,

As an experiment, I modified the objviewer scene to use a GriddedGroup
instead of a BVH.  I got it to build, but I see huge stairstep artifacts
along one side of the test object (a cube), while the other side looks
good.  Any thoughts?

http://www.cs.utah.edu/~lacewell/broken_cube.png

The grid prints out the correct bounding box; just to check, here it is
with the "-bounds" option enabled:

http://www.cs.utah.edu/~lacewell/bounds_cube.png

Input obj file:
http://www.cs.utah.edu/~lacewell/cube.obj

Session:

% bin/dm_demo -scene "lib/libscene_gridobjviewer.so( -file
/home/wally/models/cube.obj -cellfactor 1.0 -lambertian)"

Using 1 workers plus one gui thread.
Min: -0.5 -0.5 -0.5  Max: 0.5 0.5 0.5  translate: 0 0 0
Total triangles added: 12
Grid: Bounding box -0.5 -0.5 -0.5 : 0.5 0.5 0.5
1. Initializing grid
2. Count objects
3. Count cells
4. Allocating 108 list entries
5. Filling in lists
6. verifying grid
GriddedGroup: 12 objects, targeted cells: 12, actual cells: 27, 3x3x3,
built in 0.000258 seconds
Warning resize is broken.

Thanks,
Dylan

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• [MANTA] Message from Dylan, Steven G. Parker, 06/14/2006
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  • Re: [MANTA] Message from Dylan, James Bigler, 06/15/2006

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