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Hi,
Thanks Dirk for your suggestion.
Disabling optimization parameters (i.e. setting graphOpSeq to NULL in the SceneFileHandler::read() function) makes loading of OSB data faster in
OpenSG.
However I made some observations regarding data loading in Optimizer
( with opviewer) and OpenSG :
o If loading some dataset (in CSB format) in opviewer for the first
time
takes X secs then subsequent loading of the same data takes about X/10 seconds i.e. loading the same data second time onwards is considerably faster. o Loading same dataset (converted to OSB) in osg application
takes
around same time always i.e. first and second time loading times don't differ. [ The datasets I tried were "Dragon" and "Happy Buddha" from
http://www-static.cc.gatech.edu/projects/large_models/ converted to CSB and OSB for loading into opviewer and OpenSG application respectively. ] Does anybody has any clue about this behaviour with opviewer ? Thanks,
- Vaibhav >That said, OSB in general loads very fast. The only thing I can think of >that might slow things down is that by default some basic optimizations >(striping etc.) are run on every loaded model. You can deactivate (or >change) that by giving an optional parameter to >SceneFileHandler::read(). That parameter is the GraphOpSequence to be >run after loaded, or NULL. >How much of a difference are we talking here anyway? 10% or a factor
of
>10? >Hope it helps
>Dirk
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