Polyester Fabric - Photometric Stereo based PBR Material
Another fabric material captured while experimenting with photometric stereo capture technique.Polyester i a fully synthetic, man-made polymer, which, as a specific material, is most commonly referred to as a type called polyethylene terephthalate (PET). Its probably the most common substance our cloths are made off. This one imitates velvet in wolf's color.
I share close up shots as these might help to understand an actual light response from the surface or why some surfaces work with cross polarisation better to others? Its part of my research for my incoming video about color calibration for materials so please stay tuned.
For those interested with the process, here is a link to the video on my youtube channel:
https://youtu.be/7YGd3bcO_Ys
The material was captured with the slim light used as a source of light and is based on 24 images.
Cheers!
G.
4x tiling preview
PBR preview: Albedo / Normal / Height / Roughness / Ambient Occlusion
Tiling preview rendered in Marmoset Toolbag
Source sample with the 4cm ruler used as a scale reference and 5mm chrome sphere for light source direction auto detection
Source material - 10cm field of view
Source material - 5mm field of view
Source material - 5mm field of view seen in invisible for human eye light spectrum (ultraviolet 365nm). Since its a 100% synthetic material it doesnt respond to the ultraviolet well and is kind of , ultraviolet boring :)
Source material - 1mm field of view
Setup with slim light I used to capture this material
25 images captured from 25 different angles used for photometric stereo reconstruction in Details Capture
Details Capture - photometric stereo reconstruction. Unity ArtEngine is also an option to consider but it is limited just to 16 input images while Details Capture has no such limit (256 afaik).
Unity ArtEngine - probably the best tool available to automaticaly remove seams from most of scan based materials.
Video with the photometric stereo process used to capture this material:
https://youtu.be/7YGd3bcO_Ys