Hello, I was wondering if one can generate a mesh first, and use that as a texture on another mesh. Many Thanks!
No, that’s not possible. In general, you can’t use any kind of 3D object as a texture.
Unless you mean something like this example But yeah, you can’t render 3D as a 2D texture (only a projection.)
Or that one: https://threejs.org/examples/?q=texture#webgl_rtt