Ivan Bolčina schrieb:
Hi.
I would like to enable multisampling on certain nodes. How to do it?
You can smooth certain nodes via GL_LINE_SMOOTH, GL_POLYGON_SMOOTH:
node->getOrCreateStateSet()->setMode(GL_LINE_SMOOTH,
osg::StateAttribute::ON);// or ::OFF
node->getOrCreateStateSet()->setMode(GL_POLYGON_SMOOTH,
osg::StateAttribute::ON);// or ::OFF
If you enabled FSAA then you can control the multisampling of nodes via
the GL_MULTISAMPLE_ARB-attribute:
node->getOrCreateStateSet()->setMode(GL_MULTISAMPLE_ARB,
osg::StateAttribute::ON); // or ::OFF
GL_MULTISAMPLE_ARB is not supported on every hardware/platform, YMMV.
There seems to be another extension controlling multisampling:
GL_MULTISAMPLE_SGIS, but I have no knowledge about that.
hope that helps,
Stephan
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