From: Gordon Tomlinson (Gordon.Tomlinson++at++warhammeronline.com)
Date: 06/15/2004 08:12:12
Why not use ClipTexture technology built into Performer, its what it is
designed for and if your on SGI big metal you also get hardware support
for free
_____
From: owner-info-performer++at++performer.engr.sgi.com
[mailto:owner-info-performer++at++performer.engr.sgi.com] On Behalf Of
Ludwig, Thomas
Sent: Monday, June 14, 2004 3:03 PM
To: info-performer++at++sgi.com
Cc: Rambau, Tim
Subject: [info-performer] pfTexture swallows my Memory
Hi,
I am trying to write my own texture-paging-system for aerial-
photos and facing the problem of ongoing memory-consumption.
I build a quadtree-structure with a pfTexture in every leaf. By
testing against the viewfrustum I decide which to load and which
to give up. Depending on the distance to the viewpoint I load
different texture-qualities. If the viewpoint comes closer to a texture
I replace it with a better version using setImage().
By now everything works fine, but everytime I use setImage() my
software swallows more and more memory. I tried a dozen combinations
of freeImage(), subload(), setImage(), freeGLHandle(), etc. but there
seems to be no remedy...
Could someone give me a hint or maybe give me a view on the inner
structure of setImage()?
Thanks for any help,
Thomas Ludwig
Tim Rambau
German Aerospace Center DLR
Member of the Helmholtz Association
Institut of Flight Guidance
Germany
mail: thomas.ludwig++at++dlr.de
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