Hello I have a 3D model uploaded in SketchFab and downloaded the .obj file to import into Zbrush. My problem is that Mixamo doesn’t like the current pose with the way the arms are bent down, as opposed to having the “T” shape neutral pose which Mixamo likes.
So I have trouble sculpting my arms to replicate a “T” pose and I’m very new to this software, even though I watched countless tutorials, I can’t seem to get my head around it. If anyone can help me out that would be appreciated.
Hello @Vipah187 ,
If you have a high resolution mesh at a single level of subdivision, for best results here you would need to convert your mesh into a multi-resolution tool with a clean, well-drawn low poly base topology and multiple levels of subdivision. You can pose the lowest level of subdivision easily, while retaining the high resolution detail on the higher levels of subdivision. Changes made to the pose at the base level will update the higher levels of subdivision. Attempting to pose the mesh at high resolution will be difficult.
There are a number of ways to do this, but the basic principle is that you will be projecting the sculpting detail from your existing mesh onto a new version of the mesh with multiple subdivision levels, using one of the various methods for doing so. So you could project the detail onto a new version of the mesh that has been ZRemeshed or otherwise retopologized as a low poly mesh then subdivided sufficiently to hold the incoming detail.
Once your detail has been transferred to the multi resolution tool, you can drop to the lowest subdivision level, and use Gizmo, the Transpose actions lines, or ZSphere rigging to pose that. This will update the pose at the higher level of subdivision while keeping the high-res details.
Use masking with soft falloffs to control which parts of the mesh you want to affect and to what degree. The fewer the points on the surface of the mesh the easier the points will be to isolate, and the easier it will be to repair in the case of surface distortion. If you have multiple subtools involved, Transpose Master can be used to help you pose all subtools simultaneously.
Good luck!
