[osg-users] Setting up VPBMaster

Chris 'Xenon' Hanson xenon at alphapixel.com
Tue Nov 3 09:12:36 PST 2009


Jacob Armstrong wrote:
> I want to thank you again for all your help on this issue. I've got my
> fingers crossed for this to work, but we've already come up with some
> ideas of how to cut this down for the next run. My manager knows I've
> been in contact with you on this, and she was wondering if you part of
> the development team for OpenSceneGraph, or if you're a knowledgeable
> user or what? I told her I wasn't sure, but you seemed to know more
> about this stuff that I do.  :)

  Well, I don't know that the "development team for OpenSceneGraph" is a clearly defined
set. By volume, Robert is the author of the vast majority of the OSG source code, but
there's a long list of other contributors as well. I'm one of the those folks. I've worked
on terrain-related aspects of OSG since, err, I can't remember how long. Well before OSG
1.0. I'm also one of the few people brave enough to dive into and work on VPB's own code,
though I don't know it inside and out. I've worked on 3D terrain software since about 1992.

> I wanted to ask you something else on OSGDem if that's ok. I posted
> another thread about what to do if OSGDem crashes during a run, but I
> haven't gotten any responses to it. I was wondering if there's any log
> file or any way OSGDem can pick up where it left off (or somewhere close
> to it) after a crash, or does it have to start from the beginning again?
> Do you happen to know about this?

  I don't know if there's any way to restart OSGDEM. I kinda doubt it, because it would
have no idea what the current state would be, or what files might have been written
improperly or incompletely during the crash.

  I would expect the full VPB might have a better chance of this, because it breaks the
work up into discrete jobs and dispatches them, and keeps track of what gets done. it
might be able to resume a partially completed job.

-- 
Chris 'Xenon' Hanson, omo sanza lettere                  Xenon AlphaPixel.com
PixelSense Landsat processing now available! http://www.alphapixel.com/demos/
"There is no Truth. There is only Perception. To Perceive is to Exist." - Xen


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