Hi, If you are articulating some objects, like Robot arm, you rather use MT. for instance a rotation of a joint imply rotation of the rest of the arm, rather then computing the Position of each part , you construct a hierarchy of MTs and Multiplying one MT by another apply the change on the rest of the part ...
I advice you to make a look at OpenSceneGraph Example osgRobot. Have a nice weekend ------------------------ Mohamed ALJI ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41271#41271
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