Re: [osg-users] Bone space matrix
Hi,
I have a problem ... in my application receives the matrices of bones in each
time step (bones are updated in real time), and using:
Code:
pBoneUpdate.at(i)->getStackedTransforms().push_back( new
osgAnimation::StackedQuaternionElement("rotate", mat.getRotate()));
the framerate plummets ...
Is there some method to update the bones without using it?
Thank you!
Cheers,
Aitor
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Re: [osg-users] Bone space matrix
Hi, setMatrix in the Bone would update the bone, like a MatrixTransform. So If you update the matrix and you dont see any update of children on the screen then there is something wrong. I suggest to read the UpdateBone.cpp in osgAnimation to see how bones are updated in 'classical' way. Another stuff that comes in mind is that maybe you could use the regular path (like in osganimationskinning) and define your customized UpdateBone class that could take input from your events and generate a matrix from that. Cheers, Cedric On Thu, 2010-05-06 at 15:29 +, Aitor Ardanza wrote: > Hi, > > I've been looking at the example of osganimationskinning... but this example > uses a pre-generated animation, and in my case I change the position and > direction of the nodes with keyboard events. > > For example, we apply a rotation to bone0Rot (OSG:: Quat) with a keyboard > event: > > Code: > bone0Rot-> makeRotate (rotx-0.04, OSG:: Vec3 (1.0,0,0), roty, OSG:: Vec3 > (0.0,0,1.0), 0, OSG:: Vec3 (0.0,1,0.0)); > > > and then, at each time step, I apply that to the bone: > > Code: > bone0-> setMatrix (OSG:: Matrix:: rotate (bone0Rot)); > > > with this we would have the matrix of the bone to do the skinning, it works > well. > > Code: > boneMatrices[1] = bone0->getMatrixInBoneSpace(); > > > boneMatrices communicates with the vertices shader. > > I just be wanting to know how to update the position of the bone on the > screen .. > > Thank you! > > Cheers, > Aitor > > -- > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=27619#27619 > > > > > > ___ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- Provide OpenGL services around OpenSceneGraph and more +33 659 598 614 Cedric Pinson mailto:cedric.pin...@plopbyte.net http://www.plopbyte.net signature.asc Description: This is a digitally signed message part ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Bone space matrix
Hi, I've been looking at the example of osganimationskinning... but this example uses a pre-generated animation, and in my case I change the position and direction of the nodes with keyboard events. For example, we apply a rotation to bone0Rot (OSG:: Quat) with a keyboard event: Code: bone0Rot-> makeRotate (rotx-0.04, OSG:: Vec3 (1.0,0,0), roty, OSG:: Vec3 (0.0,0,1.0), 0, OSG:: Vec3 (0.0,1,0.0)); and then, at each time step, I apply that to the bone: Code: bone0-> setMatrix (OSG:: Matrix:: rotate (bone0Rot)); with this we would have the matrix of the bone to do the skinning, it works well. Code: boneMatrices[1] = bone0->getMatrixInBoneSpace(); boneMatrices communicates with the vertices shader. I just be wanting to know how to update the position of the bone on the screen .. Thank you! Cheers, Aitor -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27619#27619 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Bone space matrix
Hi,
I can't help more without other details, i can just tell you to check
the osganimationskinning example.
My First advise should be to make it work with software implementation.
I could help but i would need to have a small example i could run and
debug to have a quick overview what's wong.
Cheers,
Cedric
On Thu, 2010-05-06 at 08:04 +, Aitor Ardanza wrote:
> Hi,
>
> Well, I managed to position the nodes to start, but I dont know how can I
> update them, for viewing, each time step.
>
>
> Code:
> bone0 = new osgAnimation::Bone;
>
> bone0->setInvBindMatrixInSkeletonSpace(osg::Matrix::inverse(osg::Matrix::translate(0,0,0)));
> bone0->setName("right0");
> pBone0Update = new osgAnimation::UpdateBone("right0");
> pBone0Update->getStackedTransforms().push_back(new
> osgAnimation::StackedTranslateElement(osg::Vec3(0,3,0)));
> bone0->setUpdateCallback(pBone0Update);
>
>
>
> at each time step:
>
>
> Code:
> bone0->setMatrix(osg::Matrix::rotate(bone0Rot));
> bone1->setMatrix(osg::Matrix::rotate(bone1Rot));
> boneMatrices[1] = bone0->getMatrixInBoneSpace();
> boneMatrices[2] = bone1->getMatrixInBoneSpace();
>
>
>
> Now the cylinder is transformed correctly, but the nodes dont moves ... I
> guess I'll have to call in some way to osgAnimation:: UpdateBone...
>
> [Image: http://img132.imageshack.us/img132/7231/osgskinning1.jpg ]
>
> Thank you!
>
> Cheers,
> Aitor
>
> --
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=27601#27601
>
>
>
>
>
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Re: [osg-users] Bone space matrix
Hi,
Well, I managed to position the nodes to start, but I dont know how can I
update them, for viewing, each time step.
Code:
bone0 = new osgAnimation::Bone;
bone0->setInvBindMatrixInSkeletonSpace(osg::Matrix::inverse(osg::Matrix::translate(0,0,0)));
bone0->setName("right0");
pBone0Update = new osgAnimation::UpdateBone("right0");
pBone0Update->getStackedTransforms().push_back(new
osgAnimation::StackedTranslateElement(osg::Vec3(0,3,0)));
bone0->setUpdateCallback(pBone0Update);
at each time step:
Code:
bone0->setMatrix(osg::Matrix::rotate(bone0Rot));
bone1->setMatrix(osg::Matrix::rotate(bone1Rot));
boneMatrices[1] = bone0->getMatrixInBoneSpace();
boneMatrices[2] = bone1->getMatrixInBoneSpace();
Now the cylinder is transformed correctly, but the nodes dont moves ... I guess
I'll have to call in some way to osgAnimation:: UpdateBone...
[Image: http://img132.imageshack.us/img132/7231/osgskinning1.jpg ]
Thank you!
Cheers,
Aitor
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Re: [osg-users] Bone space matrix
Hi Cedric,
Thanks for the your answer. I update it to 2.8.3, but I continued to have
problems.
I'm implementing hardware animation skinning. The skeleton have three nodes and
i change de nodes position and orientation by keyboard(it's not preconfigured
animation).
I have seen that in the new osgAnimationSkinning.cpp example sets the nodes
matrixs by:
Code:
root->setInvBindMatrixInSkeletonSpace(osg::Matrix::inverse(osg::Matrix::translate(-1,0,0)));
I dont know why but in my case these translations are not met.
My code:
Code:
osg::ref_ptr skelroot = new osgAnimation::Skeleton;
// skelroot->setDefaultUpdateCallback();
root = new osgAnimation::Bone;
root->setInvBindMatrixInSkeletonSpace(osg::Matrix::inverse(osg::Matrix::translate(,0,0)));
root->setName("root");
boneMatrices[0] = root->getMatrixInBoneSpace();
// root->setDefaultUpdateCallback();
bone0 = new osgAnimation::Bone;
bone0->setInvBindMatrixInSkeletonSpace(osg::Matrix::inverse(osg::Matrix::translate(0,3,0)));
bone0->setName("right0");
// right0->setDefaultUpdateCallback("right0");
boneMatrices[1] = bone0->getMatrixInBoneSpace();
bone1 = new osgAnimation::Bone;
bone1->setInvBindMatrixInSkeletonSpace(osg::Matrix::inverse(osg::Matrix::translate(0,3,0)));
bone1->setName("right1");
// right1->setDefaultUpdateCallback("right1");
boneMatrices[2] = bone1->getMatrixInBoneSpace();
root->addChild(bone0.get());
bone0->addChild(bone1.get());
skelroot->addChild(root.get());
// we will use local data from the skeleton
osg::MatrixTransform* rootTransform = new osg::MatrixTransform;
rootTransform->getOrCreateStateSet()->setMode(GL_LIGHTING,
osg::StateAttribute::OFF);
rootTransform->setMatrix(osg::Matrix::rotate(osg::PI_2,osg::Vec3(0,0,0)));
bone0->addChild(createAxis());
bone0->setDataVariance(osg::Object::DYNAMIC);
bone1->addChild(createAxis());
bone1->setDataVariance(osg::Object::DYNAMIC);
osg::MatrixTransform* trueroot = new osg::MatrixTransform;
trueroot->setMatrix(osg::Matrix(root->getMatrixInBoneSpace().ptr()));
trueroot->addChild(createAxis());
trueroot->addChild(skelroot.get());
trueroot->setDataVariance(osg::Object::DYNAMIC);
rootTransform->addChild(trueroot);
scene->addChild(rootTransform);
The result:
[Image: http://img265.imageshack.us/img265/5871/osgskinning.jpg ]
The three nodes are in the same position...
Cheers,
Aitor
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Re: [osg-users] Bone space matrix
I suspect you use an 'old' version of osgAnimation, osgAnimation has
been changed about that since OpenSceneGraph 2.8.3. I recommand you to
update to the last version.
Cheers,
Cedric
On Wed, 2010-05-05 at 11:22 +, Aitor Ardanza wrote:
> Hi,
>
> I'm having problems with this issue. I build the skeleton as follows:
>
> Code:
> osg::ref_ptr skelroot = new osgAnimation::Skeleton;
> skelroot->setDefaultUpdateCallback();
> root = new osgAnimation::Bone;
> {
> root->setBindMatrixInBoneSpace(osg::Matrix::identity());
> root->setBindMatrixInBoneSpace(osg::Matrix::translate(0,0,0));
> root->setName("root");
> boneMatrices[0] = root->getMatrixInBoneSpace();
>// root->setDefaultUpdateCallback();
> }
>
> bone0 = new osgAnimation::Bone;
> bone0->setBindMatrixInBoneSpace(osg::Matrix::identity());
> bone0->setTranslation(osg::Vec3(0,3,0));
> bone0->setName("right0");
>// right0->setDefaultUpdateCallback("right0");
> boneMatrices[1] = bone0->getMatrixInBoneSpace();
>
> bone1 = new osgAnimation::Bone;
> bone1->setBindMatrixInBoneSpace(osg::Matrix::identity());
> bone1->setTranslation(osg::Vec3(0,3,0));
> bone1->setName("right1");
>// right1->setDefaultUpdateCallback("right1");
> boneMatrices[2] = bone1->getMatrixInBoneSpace();
>
> root->addChild(bone0.get());
> bone0->addChild(bone1.get());
> skelroot->addChild(root.get());
>
>
>
> I supposed that bon0-> getMatrixInBoneSpace () return the array without
> translations, but it is not.
> 1 0 0 0
> 0 1 0 3
> 0 0 1 0
> 0 0 0 1
>
> What am I doing wrong?
>
> Thank you!
>
> Cheers,
> Aitor
>
> --
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=27563#27563
>
>
>
>
>
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>
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[osg-users] Bone space matrix
Hi,
I'm having problems with this issue. I build the skeleton as follows:
Code:
osg::ref_ptr skelroot = new osgAnimation::Skeleton;
skelroot->setDefaultUpdateCallback();
root = new osgAnimation::Bone;
{
root->setBindMatrixInBoneSpace(osg::Matrix::identity());
root->setBindMatrixInBoneSpace(osg::Matrix::translate(0,0,0));
root->setName("root");
boneMatrices[0] = root->getMatrixInBoneSpace();
// root->setDefaultUpdateCallback();
}
bone0 = new osgAnimation::Bone;
bone0->setBindMatrixInBoneSpace(osg::Matrix::identity());
bone0->setTranslation(osg::Vec3(0,3,0));
bone0->setName("right0");
// right0->setDefaultUpdateCallback("right0");
boneMatrices[1] = bone0->getMatrixInBoneSpace();
bone1 = new osgAnimation::Bone;
bone1->setBindMatrixInBoneSpace(osg::Matrix::identity());
bone1->setTranslation(osg::Vec3(0,3,0));
bone1->setName("right1");
// right1->setDefaultUpdateCallback("right1");
boneMatrices[2] = bone1->getMatrixInBoneSpace();
root->addChild(bone0.get());
bone0->addChild(bone1.get());
skelroot->addChild(root.get());
I supposed that bon0-> getMatrixInBoneSpace () return the array without
translations, but it is not.
1 0 0 0
0 1 0 3
0 0 1 0
0 0 0 1
What am I doing wrong?
Thank you!
Cheers,
Aitor
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