What does this message mean?

[michaelhester07]

Actor::updateMassFromShapes: Compute mesh inertia tensor failed for one of the actor's mesh shapes! Please change mesh geometry or supply a tensor manually!

What does that mean and how can I supply a tensor manually?

[philotical]

it menas, you have set a mesh part to be a collider wich exists only in 2 dimensions instead of 3..

in essence, it's a plane with a collider..

go to blende, and add "solidify" to all planes or re-organize your meshes to have only 3d objects and no flat planes..

then that error will go away..

[michaelhester07]

I've been going through all my models from the Stanford Torus project and converting most parts to convex hulls after learning how to separate out parts for this conversion. The torus and all parts from my main career are "fixed" this way too, and it loads the physics much faster now. The new hull design is almost all convex hull marked so it becomes possible to make a wheel out of it. (I couldn't make it roll though)