ambientCG vs Matterfield

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.

Matterfield is a web-based library of scanned real-world 3D assets for VFX, computer vision, and video game development. Its catalog includes 3D models, textures, HDRIs, software, scripts, and tools, with downloads in FBX, PNG, EXR, and HIP (ZIP) formats. Matterfield describes production workflows using advanced 3D scanning and multiple capture methods. The free No Sponsorship plan costs nothing and includes common models and textures, collections, a blog, and a knowledgebase. Friend costs $10 a month and adds all 3D models and textures. Partner costs $25 a month and adds HDRIs, software, scripts, tools, and asset sponsorship. Benefactor costs $75 a month, adds high-poly source data plus revision and variation requests, and is required for companies with revenue over 100k. Required subscriptions provide unlimited downloads. Commercial use is allowed, but assets cannot be resold on other websites or used for AI training without an agreement.