I'm unsure of your method, but here is how I handle it:
_position is a PositionAttitudeTransform
Quat h,r,p;
h.makeRotate(osg::DegreesToRadians(heading), Vec3d(0,0,1));
p.makeRotate(osg::DegreesToRadians(pitch), Vec3d(0,1,0));
r.makeRotate(osg::DegreesToRadians(roll), Vec3d(1,0,0));
_position-setAttitude(r*p*h);
Jason
-Original Message-
From: osg-users [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf
Of Chris Hidden
Sent: Friday, September 05, 2014 5:35 AM
To: osg-users@lists.openscenegraph.org
Subject: [osg-users] Positional Animation
Hey everyone.
I may be interpreting how this is done improperly, but all I want at the moment
is to animate two hand models.
I have two osg::MatrixTransform objects which I add my loaded hand models too.
I then attach an instance of a class that extends from osg::NodeCallback
Then in that class i have:
Code:
public:
HandMovementX() :incrementer(-0.5), incrementer2(-0.5), pitch(-90.0),
roll(12.0){}
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
OSG_FATAL Being called std::endl;
roll += incrementer2;
if (roll 57)
incrementer2 = -0.5;
if (roll -33)
incrementer2 = 0.5;
pitch += incrementer;
if (pitch -135)
incrementer = 0.5;
if (pitch -90)
incrementer = -0.5;
osg::MatrixTransform *trans = dynamic_castosg::MatrixTransform
* (node);
if (trans != NULL)
{
osg::Matrixd handRotation;
handRotation.makeRotate(
osg::inDegrees(90.0f), osg::X_AXIS,
osg::inDegrees(pitch), osg::Y_AXIS,
osg::inDegrees(roll), osg::Z_AXIS
);
trans-setMatrix(handRotation *
osg::Matrix::translate(15, 0, 8) );
worldCoordMatrix =
osg::computeLocalToWorld(nv-getNodePath());
}
traverse(node, nv);
}
private:
osg::Matrix worldCoordMatrix;
float pitch;
float roll;
float incrementer;
float incrementer2;
The hands are moving, but not at all how I want them too and it seems that it
animates first the Y axis and then the Z axis and then the translate. I want
all positions to be taken into account in a single movement on each frame. Am I
approaching this totally wrong or what?
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=60958#60958
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