To check whether the rigid bodies are aligned with the X-Ray videos properly, you can import mesh models into XMALab.

• Click on the box next to the rigid body in the Points window;
• Click on "load Obj-file" and select the .obj file that corresponds with the rigid body and set the scale;
• Select "Draw bone mesh model".

Loading takes a short time. Make sure you select "Meshmodels" in the Display Options window (under View - Display Options)

If you still cannot see the mesh model on the screen, try playing the video and changing the scale in the rigid body settings.

When you see the mesh models, you can alter the transparency by clicking the "i" on the topright corner of the videos. You can also visualize the mesh models in the 3D world view. If you tick 'Enable' in the bottom, you can play the animation with the bone models.