In Windows 10’s Paint 3D there’s a freeform 2D drawing mode that results in a 3D form that has proportionally more volume where the shape is larger. So small protrusions in the 2D shape become thin protrusions in the 3D result.
I really like how fast you can create basic 3D shapes that are usable for further sculpting with this method. Looking at the resulting topology, I suspect the 3D result is shaped using smoothed voxels, similar to Dynamesh or OpenVDB.
Being able to start such a drawing mode with the touch of a button or keyboard shortcut, you could very easily create the base shapes of body parts and other organic forms. Additionally, there’s a drawing mode that results in straight extrusions, for flat hard-surface objects.
Here’s a video showing some fast object creation using Paint 3D’s 2D to 3D drawing method.
It would be great to have a similar easy-to-use tool in Blender, preferably also usable in Sculpt Mode, maybe using the masking lasso tool. I guess OpenVDB could be a great method for such a tool. Do you think you could add something like it to OpenVDB Remesh? That’d be great.