PBR Material From Scan - Basic [for limited equipment workflows]
This collection of substance nodes are ones I created for quickly producing PBR-ready textures from an unprocessed lit texture and 3d model created in a photogrammetry package. It uses a light map to remove shadows which results in a more authentic albedo rather than methods utilizing high-pass filters. As well as this the all-in-one node can use a highpass of the processed albedo to improve the normal map, create a quick roughness map from curvature, and output a cavity/curvature map for use in the specularLevel.
It requires a lit texture, tangent normals, world space normals(preferably bent), and ambient occlusion and the gradient for your roughness
Here's a not-so-great video that walks you through how to use it. It's probably quicker to figure it out yourself, I was very tired when I made this
I've provided it in .sbs and .sbsar so you can look inside it and improve or adjust it as you please. The nodes inside aren't particularly special; as in I'm just using the nodes that ship with the program so all this is free. It's a workflow I was figuring out over the past 6 months that was originally relying on using my phone only. I've since started expanding the tool to cover environment light subtraction all in substance which will be ready soon
If you get some good use of the tool and you want to support me I'd greatly appreciate if you pay for this, or instead follow me and buy the environment subtraction version when it hits. At the end of the day I'm starting out so I'll just be happy to see people using this. If you need help hit me up here: http://polycount.com/discussion/186555/my-quades-3d-scan-thread#latest
I feel embarrassed to admit this, but it hadn't once crossed my mind i could use this in painter, which I was jumping into to clean up spots I missed anyway. So my next update will be making this work nicer in that program.
Oh yeah and you are free to use this in commercial work.