I prefer Blender for this. Attach objects together, then create new empty texture and make it active "target" ( its node selected) in all materials ( drag and drop new texture from image pane to shader pane in each material) . Copy UV set and keep the original one with camera mark on while the new selected one with that…
This is a script used in 3dsmax. I am wondering if this is possible in Blender. Any addon or script for this in Blender. https://www.youtube.com/watch?v=AEPzjaxnovw