RE: Texture memory problem?

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Rob Jenkins (robj@reading.sgi.com)
Tue, 27 Jul 1999 16:01:03 +0100


Hi Nigel

Could you add a little more detail pls ?

What version of Volumizer and also what platform ?
Do the standard Volumizer demos work then at all ?

Cheers
Rob

-----Original Message-----
From: Nigel W. John [mailto:n.w.john@mcc.ac.uk]
Sent: 27 July 1999 15:29
To: info-volumizer@corp.sgi.com
Cc: Chris Whitworth
Subject: Texture memory problem?

Hi all,

I have a student learning Volumizer by extending the voglSimple demo
code to implement a few more features (LUTs,
Stereo viewing, etc.). We have come up against a problen that neither of
us can solve. Can any of you help?

> I added some code to (theoretically) make 2D interpolation work, but it
> failed horribly, so I removed it again. Unfortunately, it still doesn't
work
> and is now only rendering a white cube (classic texture problem, IIRC).
The
> rendering code (voglSimpleRender.cxx) is practically identical to the demo
> code as supplied with Volumiser (no real differences) and is byte for byte
> identical to an earlier (less featured) version of the code I'm working
on.
>
> Does anyone have any suggestions as to what could be causing this, other
than
> things in rendering code? The weird thing is it renders the first view
> correctly, but then if you re-render it, it changes to drawing the dreaded
> white cube.
>
>
> I can upload all the sourcecode if you want to look at it.
>

Thanks in advance,

Nigel

-- 
Nigel W. John Ph.D, VR R&D Manager
Manchester Visualization Centre
Manchester Computing            Tel: +44 161 275 6096         
University of Manchester        Fax: +44 161 275 6800
Manchester M13 9PL            Email: n.w.john@mcc.ac.uk
United Kingdom                  URL: http://www.man.ac.uk/MVC/staff/john

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