20 photoscanned nature terrain material sets at 4K: forest floors and leaf litter, cracked and leafy muds, red dirt, grass paths and sparse grass, mossy rock, rocky trail, sandy gravel, coast sand, two snows and pine bark. Each set ships BaseColor, OpenGL Normal and packed ORM at 4096x4096 plus 2K displacement - assign straight into a Sektor material. Scanned by Poly Haven (CC0), curated for terrain work.