HI Zach,
On 2/4/07, Zach Deedler <[EMAIL PROTECTED]> wrote:
PROBLEM
I have a scene where the Update traversal takes 9ms. It is basically a
scene with a bunch of vehicles with wheels modeled as DOFTransforms.
INVESTIGATION
1) I made a removeDOFTransform::Visitor. After I did this the update
traversal went down to 0.1ms.
QUESTIONS
Q1) Why is the DOFTransform being visited when there are switch nodes and
LODs above it that turn it off?
The default update visitor traverses all nodes in the scene graph that
say they need visitation of the update traversal, the DOFTransform by
default says requires updating so its'll be traversal.
Q2) Why do DOFTransforms register themselves to be visited in the update
traversal? Is it for the setAnimationOn function?
Yes is because the DOFTransform can be animated.
One possible optimization would be to only swtich on the need to
update visitation when the animation is switch on.
Q3) Is there a way to turn off update traversal of the DOFs, or at least
when they are not switched or LOD'd on?
Yes,
updateVisitor->setTraversalMode(osg::NodeNivitor::TRAVERSE_ACTIVE_CHILDREN);
Robert.
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
