CGBookcase vs FreePBR

CGBookcase is a free web resource for physically based rendering textures and material guidance. Its catalog lists 566 free textures with filters for 1K, 2K, 4K, 6K, and 8K resolutions. Textures use the CC0 1.0 license, allowing free use without credit, including commercial work. A listed Manhole Cover 16 material includes Base Color, Height, Mask, Metallic, DirectX Normal, and Roughness maps. The site also provides the open-source Texture Tiling Tool, which helps make photoscanned surfaces seamless and repeatable through surface-aware blending, clone patches, and lighting equalization at seams. Guides cover Blender and Unreal Engine setup. The Blender guidance notes that DirectX normal maps need green-channel inversion for Blender’s OpenGL format. Sample Rock and Bark downloads are offered in 4K and 8K, with file sizes from 118MB to 958MB. Patrons can access a Google Drive folder containing all textures.

FreePBR is a web library of downloadable physically based rendering materials and texture files for 3D and game development. The site lists 609 free PBR textures and says the collection is growing. Materials support metalness/roughness and metallic/smoothness workflows, with sets that may include normal, albedo, roughness, metallic, ambient occlusion, and height maps. Files are 2048×2048 PNGs. The library is described as working with Blender and Unity, and also lists 3ds Max, Maya, Unreal, Cinema 4D, Houdini, and Rhino as compatible applications. Free texture sets can be used in games and 3D designs for noncommercial purposes, but redistribution is not allowed. A one-time purchase grants commercial rights for the collection and future textures. The listed commercial plan costs $21 as a one-time purchase, includes 600+ texture sets in one zip, future textures, VIP access, and the Desert Formations Pack textured model. FreePBR is aimed at indie game developers and 3D artists. The creator invites questions and suggestions through the contact page.