Hi Chris, How to optimize your application will depend on where the bottleneck is. I'd suspect CPU, but as I don't have your application and data in front of me I can't really provide any specific advice.
One thing I would suggest is making sure you are testing performance with a release build. Debug builds, especially under Windows are very slow indeed and will suggest bottlenecks that simply don't exist in final applications. Robert. On 21 October 2014 15:20, Chris Hidden <[email protected]> wrote: > Hey everyone. > > I've come a far way since my last post. Our application is reading sensor > data from the Leap Motion and we are interpreting this data and using OSG > to display the hand models on scene. The issue now is that running on my > laptop I get a tops of 20 fps. On other computers with lower specs the fr > is abysmal. > > The way its set up right now is that we load the fbx model of a hand and > traverse through its nodes. If it finds a bone and if it is one of the > bones we want to affect we attach an updateCallback. The update callback > queries our data for a new position and the position is updated using a > matrix and then the new position is set: > > > Code: > > osg::ref_ptr<osgAnimation::Bone> bone = > dynamic_cast<osgAnimation::Bone*>(node); > > if (bone) > { > ref_ptr<osgAnimation::Bone> parent > = bone->getBoneParent(); > const osg::Matrix& matrix > = _transforms.getMatrix(); > _transforms.update (); > setBoneOrientations (); > setLocalMatrices > (); > setLocalTranslationsAndRotations (parent, &matrix); > > > > > > if (parent) > bone->setMatrixInSkeletonSpace(fingerSpace * > fingerTranslation * parent->getMatrixInSkeletonSpace()); > } > > traverse(node, nv); > > > > > The setBoneOrientations(), setLocalMatrices() and > setLocalTranslationsAndRotation() are methods used to manipulate the data > so the it fits the position and rototaion on the screen properly. Basically > converting the data to osg coordinate spaces. > > The viewer is basically just while(!viewer->done()) > > I believe in total we end up attaching a callback to about 40 - 50 bones. > 20-25 on each hand. This doesn't feel like too much to process but Im no > expert... far from it. Is this the reason causing my low frame rate? If > so what are some steps or things to start looking at to improve performance. > > Thanks everyone! > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=61349#61349 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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