CGBookcase vs Poliigon

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.

Poliigon provides 3D artists with a library of photorealistic textures, models, and HDRIs. The homepage describes more than 7,000 3D assets for architectural visualization, product rendering, game design, VFX, and animation. Other listed asset types include generators and Substance Designer files, with download formats such as JPG, PNG, TIFF, EXR, FBX, BLEND, and MAX. The site lists support for tools including Blender, SketchUp, 3ds Max, Cinema 4D, Maya, Houdini, Rhino, Revit, AutoCAD, Vectorworks, D5 Render, Lumion, KeyShot, Enscape, Unity, Unreal Engine, Twinmotion, and Substance tools. Polydex organizes local asset folders, identifies PBR textures, models, and HDRIs, and groups related files into single assets. Its Core plan costs nothing, billed Forever, and provides automatic identification, local search, and drag-and-drop import. Unlimited plans include premium and free library access and commercial licenses for assets downloaded during the subscription. Those plans prohibit mirroring large portions of the library or automating downloads; excessive use can restrict downloads for up to seven days.