Imported Collison doesnt match in udk.

[majic12]

Ive been importing mesh after mesh in udk but i cant seem to avoid seeng that the collison of the mesh doesnt match the original one in maya.I do name the collision mesh UCX_name of my mesh and in maya i select both and export it as a fbx.I tried difrent collison things(triangulating the collision mesh,make it interesct and not intersect,no concave stuff offcorss etc...)Here is one of the meshes as a example.I did notice that for some of my simple meshes that use simple boxess for collision everything is ok.It would be nice to know what is going on.
Thanks.

http://imageshack.us/photo/my-images/713/collison1.jpg/

[mAlkAv!An]

You have to split up the collision mesh into multiple objects, each beeing non concave and having a different UCX_* name.
If you export the model as .ase there's a checkbox (One Convex Per UCXObject, unchecked) when importing to let the UDK do the splitting for you.

[majic12]

Well,my collision mesh is made of 3 objects.I only did a mesh combine to have them as one and named it UCX_name of mesh.Was that my mistake?I have to have the 3 meshes that make the collision separated and have them named UCX_the name of my mesh and than put something like 1/2/3 at the end?
Thanks again.

[mAlkAv!An]

Well,my collision mesh is made of 3 objects.I only did a mesh combine to have them as one and named it UCX_name of mesh.Was that my mistake?I have to have the 3 meshes that make the collision separated and have them named UCX_the name of my mesh and than put something like 1/2/3 at the end?
Thanks again.

Yes, if you export as .fbx collision models need to be separated. The naming scheme should be like UCX_Name_1, UCX_Name_2 etc. In your case there would be 4 box collsion meshes, 2x railing, 1x stairs, 1x top stair, but you can also make a single one for all the stairs.

[jak_carver]

No, your problem is that you are intersecting your colliders- your railings are penetrating into the stairs collider. seperate them physically so there is space in between them, then combine them into a single mesh in Maya (no touching!) and use the UCX naming convention, then it will work guaranteed. Trust me, I do this everyday at work.

If you still have trouble- read the UDN docs, they clearly explain how to work with colliders and Unreal engine.