Artisan Weave Sourdough - Photometric Stereo based PBR Material
Another fabric scan I made practicing photometric stereo technique. This one is composed of 40% Cotton, 20% Polyester, 16% Linen, 12% Viscose, 8% Wool and 4% Polyamide. More info about the technique used for this capture is available on my youtube channel in this video:
https://youtu.be/7YGd3bcO_Ys
Material was generated from 31 images with Details Capture and tiled with Unity ArtEngine. Images used for reconstruction were initially preprocessed with the PhotoLab5. I included some macro shots as they help to understand light response from the surface and because I captured them for my incoming video about color calibration and would be a waste not to share.
Cheers
G.
x4 tiling preview
PBR preview: Albedo / Normal / Height / Roughness / Ambient Occlusion
Setup with slim light I used to capture this material - more info in my video:
https://youtu.be/7YGd3bcO_Ys
Source sample with the 4cm ruler used as a scale reference and 5mm chrome sphere for light direction auto detection
Source material - 10cm field of view
Source material - 5mm field of view
Source material - 5mm field of view treated with ultraviolet 365nm wave length light. This one is much more UV reavtive to the previous one
Source material - 1mm field of view
Details Capture - photometric stereo reconstruction based on 31 images. Unity ArtEngine is also an option to consider but it is limited just to 16 input images while Details Capture has no such limit (afaik its max 256 if there is enough RAM).
Unity ArtEngine - probably the best tool available to automaticaly remove seams from most of scan based materials. I also used it to generate roughness and ambient occlusion maps