Solved Collision Mesh Problems

I followed Nadeox1's tutorial for making collision meshes and I am having problems getting the mesh to work in Beam. Included in the zip is the Collada files of the working (no collision) and not working (collision) meshes. Along with the .blend files.

Not sure what I am doing wrong...

FIX:
Remove Doubles!!!

Hide "Colmesh-1" before export...

 

You renamed the object but not the mesh data, the mesh data needs to be renamed to Colmesh-1 as well.

 

Thank you...

Still having a problem with the collision mesh where vehicles don't collide the right way. i.e. it eats them...

 

This is due to incorrect normals. Either they're reversed or the walls are not double sided ect.

 

I tried a simple cube and even that is not working for me...

 

Try displaying normals and checking their direction (https://www.blender.org/manual/modeling/meshes/editing/normals.html). Backwards normals are (afaik) the only thing that cause collision meshes to eat vehicles, because as the nodes get near it the collision kicks in and tries to put the node on the other side of the collision mesh, thinking you had hit it so hard you passed through it

 

Weird fix... I need to hide the collision mesh before export...