Grass - Photogrammetry based Environment Texture
Practicing my current photogrammetry workflow I did another approach to capture grass. To compensate windy conditions during capture and get nice and sharp image I picked low and fresh cut one and used 22mm focal length with aperture set to 8. I used Zbrush to create LowPoly model and Substance Designer to bake 3 PBR maps (diffuse, normal and ambient occlusion). After I tiled them manually in Substance Painter I used Substance Designer again to do few tweaks and generate roughness and height map.
My current workflow
Captured area
Photoscan (22 mln poly highpoly model based on 40 images)
Zbrush - Lowpoly model made with 'topology brush' to bake maps in Substance Designer after
Seams removal in Substance Painter from baked maps
Final tweaks in Substance Designer
