Good day
I’m a complete newbie, and trying to learn.
I’m interested in doing some 3d printing, and bought some models, that I just want to tweak and repose a bit.
(Note that these reposes are simply for myself, and not for redistribution/sale. Also to serve as a chance for me to learn zbrush!)
Basically I have these raptors. I want to swap some heads around (image below). What would be the best way to go about this?
Hello @Marisa_de_Swardt ,
Some artists might use the 3D layers feature for this. Layers have some limitations though that you will need to know how to work with. Layers require keeping the topology of your mesh unchanged, and posing operations work best with low-medium density meshes. So the ideal way to work with this feature is a multi resolution tool with a low poly base and multiple levels of subdivision. But, this would allow you to pose the geometry in different poses, and to be able to switch the changes on or off, or to some degree in between.
To pose a mesh with multiple subtools, you can use Transpose Master, but again this is going to work best with a mutli-res mesh and posing the lowest level of subdivision, not the highest.
If you have a multi resolution mesh, and the topology is the same, you can import a posed version of the base level topology into your tool while the lowest subdivision level is active (the topology/point order/subD level need to be the same between the active subD level and the incoming mesh), and it will update the pose of that mesh while leaving the high resolution details on the higher subdivision levels intact.
Otherwise, if the meshes don’t have the same topology, to transfer one mesh to the other will require you chop off one head, and fuse the other one to it. This is probably going to result in some seam issues where the meshes are joined, so try to plan your cut in a way that minimizes this area, and be prepared for some touch up work.
Meshes can be fused together with Live Boolean or Dynamesh. It may require you to project the detail from the previous high res version of the mesh, using one of the various methods for doing so.
Using the above features is also the best way to convert a mesh at a single level of resolution into a mutli-res mesh to work better with certain features. So in this case you would ZRemesh or otherwise topologize your base level geometry, subdivide as much as needed to capture the incoming detail, and then project the high res detail from the p;previous version of the mesh onto it.
Good luck! 
