The Softwrap Addon allows us to wrap a simple mesh around a more complicated (sculpted) mesh. This way we can retopologize our sculpted mesh. As far as I know this is quite a unique way. Below one of the use-cases. If you have more ideas, let me know.
I would start with a simple mesh with a low to medium amount of poly’s and copy it. Then sculpt the copied one with dynotopo on. Next, select the sculpt as target and the simple mesh as source. To start the simulation you press Start under initialization. And with the other parameters and the mouse you guide the low poly mesh a bit. Below a more detailed workflow.
Workflow using the Softwrap addon the first time.
Add a low poly mesh with nice topology. Copy the low poly mesh with Shift+D and move it with G, X to the right or left.
In the N-Panel you will find the SoftWrap addon where you select the source and the target. The target is the sculpted mesh and the source is the mesh with lower poly count.
Press Start under initialization to start the simulation.
After pressing Start, the low poly mesh is going to wrap around the sculpted mesh.
As you see, the low poly mesh is not well aligned with the sculpted mesh. In order to interact manually a bit, press Shift + Spacebar, or press the button in the panel under Interaction. You now can grab the low poly mesh and guide it (rotate it) in the right direction. You can also play with al the other parameters under dynamics and retopo.
After tweaking and guiding, Press Stop and move the meshes apart from eachother.