Recommended collision triangle count budget for levels in desktop game

I’m using UCX (custom convex collision meshes) for some of my level items, such as buildings. I’m trying to figure out what an acceptable number of triangles would be for a collision mesh, and at which point I should expect a performance hit.

Try to use the least amount possible, if you do that, i highly doubt it will affect performance, just see how much collision you feel is necessary for when someone plays the game and collides with it.

Thank you. I do get the “lowest possible” idea, but my question is about the opposite: what would be the highest reasonable triangle count for a level?

If anyone knows how the collision code works behind the scenes, i.e. what gets culled if anything, etc. – that would help me understand how to optimize my collidable objects for each level.

Best practice would be to use Use Sphere or box colliders where possible and resort to convex collision meshes if needed. Complex collision should be avoided if possible. You are unlikely to get an answer about “highest reasonable” because the reasonable is as low as practicable.