How can I prevent smoke from clip into geometry on mobile

Unity Engine
1

Like this:

Not this:

The above image is from an Android game, the smoke made from layers of mesh with pre-rendered texture on it

2

Use a shader that fade with depth comparison, I’m sure one of the standard particle shader already do that.

3

You will need to use soft particles and enable the camera depth texture via C#, warning this will double your drawcalls on mobile.