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Canvas troubleshooting: Difference between revisions
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→Experimenting with Osg::Simplifier
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=== Experimenting with Osg::Simplifier === | === Experimenting with Osg::Simplifier === | ||
The default simplifier[http://trac.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a00760.html] algorithm implemented in OSG is focused on terrain/mesh simplification and is typically invoked like this: | |||
<syntaxhighlight lang="cpp"> | |||
osgUtil::Simplifier simplifier; | |||
simplifier->setSampleRatio(0.7f); | |||
simplifier->setMaximumError(3.0f); | |||
// invoke the simplifier for the current node (Canvas element) | |||
_transform->accept(simplifier); | |||
</syntaxhighlight> | |||
We can extend each Canvas element inheriting from the CanvasElement base class to have its own osg::Simplifier sub-class implementing 2D simplification using CGAL. | We can extend each Canvas element inheriting from the CanvasElement base class to have its own osg::Simplifier sub-class implementing 2D simplification using CGAL. | ||
Such nodes (CanvasGroups) could in turn be used for procedurally creating LOD nodes for different viewer distances. | Such nodes (CanvasGroups) could in turn be used for procedurally creating LOD nodes for different viewer distances. | ||