Aggregate Concrete - Photogrammetry based Environment Texture
I made this material to test of how much missing data can be reconstructed by Atomatix's Artificial Intelligence based on existing information.
As I wanted to create the material which covers roughly 1.8 by 1.8 square meters I had no enough highpoly surface data coverage to bake from. Also since FBX can handle vertex color information just for 67mln poly model and generated one was 99mln, I cut some geometry to fit the budget. It was caused without any quality loss as I removed redundant and non-consistent parts of the surface only - these were useless anyway. When baked I got textures with about 50% of missing data but also 50% highly detailed an.
I painted mask in Artomatix to mark areas to be ignored by AI and use whats left for reconstruction. As you can see it is almost 50% to 50% but the surface itself is quite generic and consistent.
I had no idea what result am I going to get and was surprised how well AI handled that. It took just 5 secs to AI to get it done nice and clean.
This is my photogrammetry workflow - still experimenting with 'Artomatix' and replaced Photoscan with Metashape (more details regarding to my workflow at: https://www.artstation.com/artwork/K0PYG).
The source - to capture this surface I took 83 images + 1 for color calibration.
The focal length was set to 50mm and aperture to 8
As a scale reference I used plastic folded ruler placed on the ground.
The Source - surface details with my shoe and ruler used as scale reference
The reference image with the Color Checker included - used to calibrate color and tweak white balance in PhotoLab2
Metashape - 99mln poly dense 3D reconstruction based on 83 images.
ZBrush - lowpoly model coverage for baking - over trimmed from useless parts highpoly model. A lot of space has no corresponding highpoly data to bake from .. hopefully is going to be filled in by AI based on whats left.
Substance Designar - baking all PBR maps from highpoly model, as you can see, there is a lot of space with missing data.
ArtEngine Artomatix - graph I built to generate final textures from bake. Mask visible in 2D view is the Ignore mask, in 3D view I previewed two times tiled final PBR result. It took about 5 secs to AI to get that result.