I'm searching for a software or DLL or really just a function that would allow me too import a 3D model and a 2D surface. The result of the function would be a 2D surface where both touch.
The 3D model could be in any format. The 2D surface could be in any format, could even be a 3D model too if required.
But with a surface like this instead of a plane.
It needs to be FAST and ideally free to use.
I've looked into some Mesh collider in Unity, using small particule to render the surface but it's too slow on computing.