ambientCG vs Architextures

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.

Architextures is a web materials library and editor for architects, interior designers, and other design professionals. Its library contains more than 8,000 seamless textures available as high-quality PNG files. In the Create editor, users can change patterns, scale, and grout; the procedural materials also allow dimensions, patterns, and colours to be edited. Users can upload their own materials from a photo. Official plugins are listed for SketchUp, Rhino 8, Revit, and Vectorworks, and formats include PNG, DXF, SVG, AutoCAD hatch, and Revit model and drafting patterns. The Free plan costs nothing and covers personal and educational use with standard texture downloads. Pro costs $89.99 a year and adds high-resolution downloads, PBR options and maps, CAD and Revit hatches, more patterns, custom materials, commercial use, and team management. Commercial use requires Pro, and downloaded content cannot be used commercially after the subscription expires. The service says its materials are for visual reference and are not guaranteed to be dimensionally accurate.