For my first simple Unity project I created a ramp in Blender in order to test some things. I have added a Mesh Collider to the ramp but no collisions occur on the slope of the ramp. For example, if I place a sphere on the ramp, it won’t roll down the slope, but instead fall through and land on the bottom portion of the ramp. I read that Unity doesn’t play well with Beizer curves but I don’t know if it would be an issue considering I converted it to a mesh in Blender before importing.
Any information or suggestions would be appreciated.
Well come @disconnectwhen to the Unity Community. I’m a game developer and Unity user.
How many polys count? Is not a problem fo Bezier curves. I suspect that converting the 3d model surface mesh into triangles, you get a very big amount of triangles. For esthetic reasons, I can understand that. But try first to make one low poly. If it works then grow up.
In the mesh collider, are you also including, adding the mesh?
Also, look the manual: Unity - Manual: Mesh collider component reference
Is it possible that your mesh is Convex? then you need to make maximum a 256 triangle mesh.
You can make a second low poly mesh, specific for using it in the collider.
About colliders. In general, avoid if possible using custom geometry or make it very simple.
The sphere is the fastest, then cylinder and finally cube. Custom meshes are expensive so try to keep them simple.
