Sculpts / Retopo / Hand-Paint / PBR
Those models are low poly modelings or sculpts retopologized. My workflow, detailed on the right, is fairly similar for each asset.
N.B : As Sketchfab WebGL’s viewer is very demanding, don’t forget to close (cross on the top-right corner) windows that are still running.
LowPoly & Sculpt : ZBrush
Retopo and UVs : 3D-Coat / ZBRush / 3DS Max
Baking : Knald / Substance Painter
Painting / PBR: 3D-Coat / Substance Painter
Textures editing : Photoshop / 3D-Coat
LowPoly & Unwrapping : Spacedraw
Painting : Artflow / MedibangPaint
PSTouch : UVs organizing
I made those models using the only real 3D Modeler available for smartphones : Spacedraw. I worked more than 3 years with the brilliant and unique coder of this app, building test scenes and writing lengthy bug reports and suggestions. Working without any computer software was a real challenge and I understood a lot about the logic of what’s behind the hood of our everyday powerful 3D softs on PC.
It was a lot of fun modeling those meshes and discovering the truly impressive power hidden behind Spacedraw’s text based UI. I reworked one of them later with 3D-Coat (rocks, lava and red crystals). But for the rest, modeling, unwrapping (a nightmare, especially for the robot) and textures were all made with only a smartphone. Sadly Spacedraw is an abandonned project as the dev. moved on to AI programming.