ambientCG
Unknown
Free PBR material library, practitioner favorite from r/gamedev threads
More resources on Texturing & Materials
artstation.com/learning
ArtStation Learning is a subscription video library of courses for 3D artists, featuring modeling, sculpting, texturing, lighting, and concept art. It offers industry-led tutorials and project-based lessons taught by professional artists across major software.
AmbientCG
Public-domain (CC0) library of photoscanned and procedural PBR materials, HDRIs and 3D models maintained by Lennart Demes, formerly CC0 Textures. Each material ships with albedo, normal, roughness and displacement maps, so learners can practice physically based shading in any renderer or game engine.
Poly Haven
Public library of free CC0-licensed HDRIs, PBR textures, and 3D models, usable in any project without attribution. Learners can light scenes with real-world HDRI environments and practise applying physically based materials in Blender or other 3D software.
substance3d.adobe.com
Adobe Substance 3D is the official hub for Adobe’s Substance 3D texture tools (Painter, Designer, Sampler). The site provides product information, tutorials, documentation, and a large library of materials and learning resources for creating and texturing 3D assets.
poliigon.com
Poliigon is a premium texture and material library for 3D artists, offering high‑resolution PBR textures, ready-to-use materials, HDRIs, and other assets for realistic rendering. Browse categories like wood, metal, stone, and fabric, and download maps (color/albedo, normal, roughness, displacement) and complete materials for seamless integration into your projects.