Hi Voxelette,
First of all, click the snow game object so you can see the path along which the snow sprite gets rendered. Secondly, check the broken part and select the vertex where the sprite breaks. In the SpriteShapeController, check the Tangent Mode. This vertex must not have the first mode (“Linear”) selected. You need the second mode (“Continuous Mirrored”) to get a nice curve.
Did this fix it for you?
See also:
- Unity Manual : Sprite Shape Controller
- Forum User Guides : How to mark a topic as solved