Hi All,
I have an 3D Gyro model, and every scenegraph of this model like that;
Root
||
WorldMatrixTransform
||
LocalMatrixTransform
|| ||
Planetary YawMatrixTransform (this is inverse multiplex of
planetary's parent matrix transforms)
||
WorldMatrixTransform
||
LocalMatrixTransform
|| ||
Yaw RollMatrixTransform (this
is inverse multiplex of yaw's parent matrix transforms)
||
WorldMatrixTransform
||
LocalMatrixTransform
|| ||
Roll
PitchMatrixTransform (this is inverse multiplex of roll's matrix transforms)
||
etc........
I want to find Yaw node's world coordinates but can't. I have tried;
osg::MatrixList matrices = yaw->getWorldMatrices();
osg::Vec3 pos = matrices.empty() ? node->getBound().center() :
node->getBound().center() * matrices[0];
But it doen't work. I multiply all matrices[?] but can't get right
coordinate.
Ho can I follow a node? I don't ask about canned NodeTrackerManipulater. I
am using makeLookAt function to change the camera matrix (
viewer.get()->getCamera()->setViewMatrix(cameraMatrix) ) and trying to get
center coordinate where should I look.
I will place the camera constant point and only follow the object which will
be rotating on Z direction. I only need center coordinate of node.
Regards.
--
Ümit Uzun
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