koobas.hobune.stream
Physics2D.TilemapColliderPreparePaths Lag Spike
In my game, large tilemaps are being moved via rigidbody forces. As the tilemaps got bigger, the game began to suffer from very large lag spikes. The profiler shows that 97% is being taken by Physics2D.CreateShapes > Physics2D.TilemapColliderPreparePaths. Is this a limitation of Unity, or am I doing something wrong? I have checked my code, and I don't believe I am moving the rigidbodies via transform.position anywhere. 
I was able to find a fix. For some reason, there is no way (that I found) to fix this lag, Unity's tilemap colliders aren't designed to move. Instead, I have an object that contains either a box collider or a polygon collider for each tile, which then uses a composite collider for the final hitbox. This works really well, with no noticeable Physics2D calculations in the profiler.
