Use `ED_view3d_win_to_3d` to unproject the first click coords. This is the same function used in other tools like Draw Curve. Differential revision: https://developer.blender.org/D16617
Use `ED_view3d_win_to_3d` to unproject the first click coords. This is the same function used in other tools like Draw Curve. Differential revision: https://developer.blender.org/D16617