Gravel - Photogrammetry based Environment Texture
Another surface I captured practising photogrammetry. This time I took 78 images with the monopod used to stabilise the camera. Since I had only one marker with myself I didn't manage to get nice image alignment. Hopefully was good enough to get enough data for 65mln dense poly mesh reconstruction. With the aperture set to 8 and focal length 24mm I managed to get exposure time about 1/125 sec.
PBR channels preview
This is my photogrammetry workflow (more details at: https://www.artstation.com/artwork/K0PYG)
Source - captured area
Source - surface details
For those who might need it for substance color picking etc.. here is the reference image with Color Checker I used to calibrate albedo.
Reconstruction in Photoscan
Lowpoly over highpoly surface coverage in Zbrush
1k material preview