[osg-users] Matrixf and Quat problem

[Vincent Bourdier]

Hi,

I am trying for hours to make a rotation with two vectors...

The code is  :


osg::Matrixf MR = osg::Matrixf::identity();    //matrix rotation
MR.rotate(angle*osg::PI/180.0, _NodeTranslation^_NodeTranslationStart);
osg::Quat qrotation = osg::Quat();
qrotation.set(MR);
_rotation *= qrotation;

cout<<"Rot : "<<qrotation.x()<<" "<<qrotation.y()<<" "<<qrotation.z()<<" "<<
qrotation.w()<<endl;


And in the console, the result is :

Rot : 0 0 0 1
Rot : 0 0 0 1
Rot : 0 0 0 1
...

I've checked 'angle' and it is a good value, always increasing...

Is there any problem in my code ? Why the Quat doesn't change... ?

Thanks,

regard,
   Vincent
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.openscenegraph.org/pipermail/osg-users-openscenegraph.org/attachments/20080313/907ba83a/attachment.html