How to use Mesh to paint weight to another I need to paint weight on a surface with precision.
Can i put another mesh on my plane and paint it with that?

I have this "gray" plane and this "pink" shape. i want to use the pink shape to weight paint the plane below


Thank You
You could use dynamic paint to do that. Make the plane a canvas, and the pink object a brush, and set the plane's surface type to Weight.

Note: you should be aware that the resolution of the weight painting depends on the subdivision of the plane.