CGBookcase vs SketchUp Texture Club

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.

SketchUp Texture Club is a portal for finding material textures used in graphic design, visual effects, computer games, and other image-based work. Its emphasis is visualization and rendering for architecture and interior design, with resources for students, professionals, and people learning 3D visualization. The library is divided into architecture, materials, nature elements, and backgrounds and landscapes. Users can search, browse categories, view enlarged previews, save favorites, and filter categories to show only PBR textures with maps. A free account permits up to 15 low- and medium-resolution downloads per day, though some textures are unavailable. Club Member costs $17 a year and allows up to 50 high-resolution texture downloads per day, mapped textures where available, and unlimited daily 3D model downloads. Files come as compressed.RAR archives; the site names WinRAR for Windows and The Unarchiver for Mac. Textures can be used commercially without royalties or usage fees, but cannot be resold or redistributed as a competing product, and some rendering uses are restricted. The nonprofit portal is managed by Image Promotion Association.