Question How to generate mesh collider for imported 3D model that is more accurate to its shape?

Hi,

I have a rather complex model exported from blender, its a render of a small city. I want to apply some physics simulations to it and that would require it to have colliders. Here is a close up of on of its sections:



I want the mesh colliders to be more accurate to its shape, such as individual buildings and such are detected by the mesh colliders.

When I add a "mesh collider" to this object, it creates something similar to a box collider.. not very helpful



Is it possible to add a more accurate mesh collider?

If not possible as a built in Unity option, can some one kindly suggest an asset that would make this possible.

Thank you

 

Turn off the "convex" option on the MeshCollider. Though a single concave mesh collider of this size/complexity is probably not going to perform well.

 

aah.. silly me, thanks for pointing out that convex was the issue.

Any suggestions on how I can improve the performance of this given its size and collision enabled?