Public Domain
SIRIS - Smithsonian Institution Research Information System
Materials 3D
Ressources - Paid
O-DAN - Cross-searching for high-quality free stock photo site
Ressources - Free
CG Characters - Photoscanned Models of Characters for 3D Artists
Free PBR Materials and PBR Textures – Free CC0 PBR Textures
CC0 Textures & Models | Share Textures
3d Models | 3d Models from 3d scans | 3dscanstore.com
Library - Free Textures, HDRI, 3D models, Photos
Free High Quality Texture Downloads | Everytexture.com
Free textures for 3D modeling, design and game development
Planet Earth Texture Maps - High Resolution