[osg-users] Bug in Viewer::setReferenceTime
Hi everybody. I was having some trouble with Viewer::setReferenceTime today and while debugging found the issue in the following line [1] double delta_ticks = (time-currentTime)*(osg::Timer::instance()-getSecondsPerTick()); As currentTime and time are given in seconds (see link below for context) but the result should be in ticks, dividing by getSecondsPerTick would be correct. (Apart from that: Thank you for this great library :D) Regards Benjamin [1] https://github.com/openscenegraph/osg/blob/3c55e5bc765aff03ed0850ef9b9b62dc6aabe6a8/src/osgViewer/Viewer.cpp#L446 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Insight into osg::Operation
Okay, sorry for the noise.
My problem was a optimizer-run right after the scene was loaded, which
of course might collapse groups.
Any thoughts on how to optimize in the background anyways?
Cheers
Sebastian
I found out, that the crash occurs when a osg:Group is traversed by
the intersection visitor.
This is akward.. is the rendering thread somehow modifying children of
the scene?
cheers
Sebastian
Hi,
I need some help with the osg::Operation.
What I'm trying to achieve seems relatively simple. After loading a
model, I want some background operation to visit with an
intersections visitor.
Pseudo code:
Load Node
Create osg::Operation-derived ref_ptr and do
mThreadedOperations-add(operation);
viewer-addUpdateOperation(operation);
during runtime (e.g. before viewer.frame())
Unfortunately I'm experiencing crashes (vector iterator not
dereferenceable etc) in the intersection visitor ( to be more exact:
in the node-accept(*mIntersectionVisitor))
It works flawlessly if I let the body of the operation execute
blocking after loading.
In my osg::Operation::operator()(osg::Object*) implementation I'm
using the following scheme:
osgViewer::Viewer* viewer =
dynamic_castosgViewer::Viewer*(callingObject);
if (viewer)
{
return;
}
else
{
runTheIntersectionVisitor(); ...
}
Is there anything else I need to know? Examples for the
osg::Operation are rare and I don't see from the given implementation
if I need to lock anything.
Can someone give some insight on this?
Cheers
Sebastian
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Re: [osg-users] Insight into osg::Operation
I found out, that the crash occurs when a osg:Group is traversed by the
intersection visitor.
This is akward.. is the rendering thread somehow modifying children of
the scene?
cheers
Sebastian
Hi,
I need some help with the osg::Operation.
What I'm trying to achieve seems relatively simple. After loading a
model, I want some background operation to visit with an intersections
visitor.
Pseudo code:
Load Node
Create osg::Operation-derived ref_ptr and do
mThreadedOperations-add(operation);
viewer-addUpdateOperation(operation);
during runtime (e.g. before viewer.frame())
Unfortunately I'm experiencing crashes (vector iterator not
dereferenceable etc) in the intersection visitor ( to be more exact:
in the node-accept(*mIntersectionVisitor))
It works flawlessly if I let the body of the operation execute
blocking after loading.
In my osg::Operation::operator()(osg::Object*) implementation I'm
using the following scheme:
osgViewer::Viewer* viewer =
dynamic_castosgViewer::Viewer*(callingObject);
if (viewer)
{
return;
}
else
{
runTheIntersectionVisitor(); ...
}
Is there anything else I need to know? Examples for the osg::Operation
are rare and I don't see from the given implementation if I need to
lock anything.
Can someone give some insight on this?
Cheers
Sebastian
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