How to crop or mask a sprite to a specific shape?

Questions & Answers
1

I’m trying to do a procedural terrain generation. I’ve managed to make the function to generate the points, and I’ve been testing/debugging by creating the terrain using a polygon collider on an object.

21078-capture.png
21078-capture.png1101×360 31.4 KB

Now that it’s done, I want to use this shape to crop a large sprite using the shape so that I obtain the shaped terrain. If I have a square terrain sprite, is there any way to crop the top or mask it to the shape of the polygon collider (or the shape of the function I’m using).

2

Well, you haven’t specifically specified by looking at that screenshot I assume you are talking about a 2D terrain.

If that’s the case I believe the best way would be to manually create a 2D polygonal mesh that represents your terrain (very much like the image you have there). Then you can assign a texture to it and assign of UV coordinates.

With X/Y based naive UVs you should get your texture naturally cropped by the mesh edges.