ambientCG vs CGAxis

ambientCG is a free library of downloadable assets for 3D art, architectural visualization, game development, VFX, and related work. Its collection includes PBR materials, HDRIs, Substance graphs, atlases, decals, photo textures, models, and terrain; the homepage lists 2,895 assets. Downloads are available in JPG and PNG. The assets use the Creative Commons CC0 1.0 Universal license, permitting copying, changes, distribution, and commercial use without permission, and attribution is not required. You can browse and download on the website or use the API to search and download assets with code; its documentation lists v1, v2, and v3 endpoints. The creator cautions that the API may not be stable or reliable enough for enterprise applications. Documentation also covers use with Blender's Asset Browser. Patreon supporters may receive early access and easier batch downloads, and the homepage mentions ad-free browsing. Access to downloadable assets is free at free.

CGAxis is a library of production-ready 3D models, PBR materials, HDRI maps, decals, and imperfections for archviz, games, and VFX. Its catalog lists 13,659 assets, with new items added every week. More than 100 models, materials, and HDRIs are free to use without credits or a subscription. Visitors can inspect 747 assets in a browser-based 3D preview by spinning and zooming, without downloads or plugins. The free CGAxis Hub desktop app browses and previews the catalog, then can append selected assets into a running 3D application. It lists integrations with Blender, Cinema 4D, 3ds Max, Maya, SketchUp, Unreal, and Unity. A separate Blender add-on supports Blender 4.0–5.0 on Windows, macOS, and Linux. Downloads include a royalty-free commercial license that remains usable after a subscription ends. Paid options include Essential at $16 a month (billed $190 billed yearly), credit bundles, and individual or team subscriptions. The Studio plan provides separate accounts per seat.