Problems with getVoxelAddr()/ setVoxel()

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From: Christoph Ramseyer (cramseye@stud.ee.ethz.ch)
Date: 08/10/2000 05:21:35

Hi,

When I am calling voBrickSet's getVoxelAddr() or setVoxel() my program
(built around voglSimple) exits with the error message

[1] Trace/BPT trap voglSimple ...

Some info about the data format:

dataType: unsigned byte
diskDataFormat: luminance
externalFormat: luminance_alpha
internalFormat: luminance8_alpha8_ext

At the time of the function calls the voxel data is properly initialized
and resident in memory (I can see the voxel data on screen).

The voxel coordinates passed should be O.K., my volume has size 128 x
128 x 38.

I am using

OpenGL Volumizer 1.2 (Date: Dec 10 1999 16:17)

IRIX 6.5

SGI OCTANE

Thanx a lot for solutions & suggestions

Chris

 
Here comes part of the code:

        //read voxel

        GLubyte* valueGetCast = new GLubyte;
        
        valueGetCast = (GLubyte*) aBrickSet->getVoxelAddr(2,2,2);

  

        //set voxel

        GLubyte valueSet[] = {244,230};
    
        aBrickSet->setVoxel(2,2,2,valueSet);

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