Hi,
I have some problems encountered in the project to ask everyone.
Question 1: The following function parameter t does not seem to be set to the
specified value. It is found in the callback function of osg::Node that even if
t is set to the specified value, the ReferenceTime in the callback function
still starts from 0. Is there any way to make ReferenceTime from the specified
value?
viewer->getFrameStamp()->setReferenceTime(double t)
Question 2: osg:Group cannot generate and add a large number of nodes at one
time, nor can it repeatedly add and delete all child nodes, otherwise it will
crash. Is there any way to add a large number of nodes at once? Can repeatedly
add and delete a large number of child nodes?
Question 3: How to remove the updatecallback of a node stably and reliably? How
to remove a node that is being updated stably and reliably?
My rendering is done in a separate thread,
while(!viewer->done())
{
osg->PreFrameUpdate();
viewer->frame();
osg->PostFrameUpdate();
}
I call node->removeUpdateCallback(callback) in the
preFrameOpration->Operation() function will cause a crash.
I call node->setUpdateCallback(callback) again for a node that has already
called node->setUpdateCallback(callback) will cause a crash.
Do you have a stable and reliable way to achieve this goal?
void PreFrameUpdate()
{
if (preFrameOpration != nullptr)
{
preFrameOpration->Operation();
delete preFrameOpration;
preFrameOpration = nullptr;
}
}
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