So after the big help of Richard (many Thanks again), I was able to center a loaded model at (0,0,0).

But there is one thing left to do:
When I rotate the model, it still rotates along its original center and not around the stages center. My workaround till now is to move the camera around the model, looking at (0,0,0), but I would like to rotate the model instead.

Is there a possability to set the models center to a different point (0,0,0 for example)?

When you say “model”, are you talking about a container (e.g. a Loader3D) or a mesh? From the rest of the thread, it seems like you have several meshes in a container. So the easiest solution to your problem would be to just move the meshes within the container, instead of moving your container. Then you can rotate the container.

Otherwise, take a look at moving the pivot point of a mesh, using the pivotPoint property or movePivot() method on the mesh.

U are right, I moved a Loader3D Container till now. Moving each Mesh sure is a possabilaty, but computing the postion where to move tha mesh isn’t as easy as computing it for the complete container i think !?

Just tried to use your formula, which works perfectly on the container, for each mesh and the result is a completely destroyed modell.

You should still calculate the distance using the bounds of the container, and then just apply the translation (the same as you would to the container) to each of the meshes. The meshes should all be moved the same amount as the container would have.

Sure…You are always right

Now it works like a charm.

Thanks again.