Effecting MatrixTransform matrix change

[Erik Hensens]

Hello everyone! This must be a simple one... I have a node that has one parent which is a MatrixTransform. I simply need to move the child node to a specific location that is computed at run time. I figured I just needed to do the following, but this caused no change in the location of the node:

const osg::Matrix OriginalParentMatrix = pParentMatrixTransform->getMatrix();

osg::Matrix TranslateContribution;

TranslateContribution.makeTranslate(10.0f, 0.0f, 0.0f);

const osg::Matrix FinalNewMatrix = (OriginalParentMatrix * TranslateContribution);

pParentMatrixTransform->setMatrix(FinalNewMatrix);

No matter what translation I set in makeTranslate(), the child node doesn't move. Is there some call I'm missing to cause the new matrix to take effect on the node's parent matrix transform? Thank you in advance!

[OpenSceneGraph Users]

Do you have any other objects in the scene? Could it be that the point
of view is moving with the object?

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Alberto

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[Erik Hensens]

Hi Alberto. There are lots of other objects in the scene, but the point of view is not moving as this is happening.

[OpenSceneGraph Users]

Make sure that the data variance of the transform is dynamic after you initially create it:

pParentMatrixTransform->setDataVariance(osg::Object::DYNAMIC);

Tim 

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