- clothing items https://connect.clo-set.com/store/all?pricingOptions=1
- https://quaternius.com/
- https://thebasemesh.com/model-library
- https://objaverse.allenai.org/
- https://thebasemesh.com/
- https://www.kenney.nl/assets?q=3d
- AI models https://captures.lumalabs.ai/imagine
- free tree generator https://www.evolved-software.com/treeit/treeit
- plants, insects https://sketchfab.com/ffishAsia-and-floraZia
- sponza https://www.intel.com/content/www/us/en/developer/topic-technology/graphics-research/samples.html
- some free scanned assets https://www.scanslibrary.com/library?credit=0
- Public Domain materials for Physically Based Rendering https://ambientcg.com/
- The Public 3D Asset Library https://polyhaven.com/
- usd lab scene https://animallogic.com/usd-alab/
- 360 mesh https://www.sphereoptics.io/downloads
- blender https://blendswap.com/blends
- some articles have models and scans https://zenodo.org/
- head https://www.3dscanstore.com/blog/Free-3D-Head-Model
- base mesh https://www.3dscanstore.com/blog/Free-Base-Mesh
- expression base mesh https://www.3dscanstore.com/blog/multi-expression-basemesh
- humans https://github.com/microsoft/Microsoft-Rocketbox
- https://www.myminifactory.com/scantheworld/
- CC4 scanned objects https://app.ignitionrobotics.org/GoogleResearch/fuel/collections/Google%20Scanned%20Objects
- Real World Textured Things http://texturedmesh.isti.cnr.it/
- unity sketchfab search plugin https://github.com/sketchfab/unity-plugin
- cc0 https://3dmodelhaven.com/
- historical objects https://3d.si.edu/cc0?edan_q=*:*&edan_fq[]=online_media_type:%223D+Images%22
- historic objects https://sketchfab.com/nebulousflynn/collections/cc0
- reference meshes https://casual-effects.com/data/
- http://3dmj.info/products/list.php?category_id=14
- https://3dwarehouse.sketchup.com/
- https://www.turbosquid.com/Search/3D-Models/free
- https://3delicious.net/
- https://www.hongkiat.com/blog/60-excellent-free-3d-model-websites/
https://www.mepcontent.com/en/bim-files/ https://www.bimobject.com/en-us/product
AmbientCG to Unity texture converter
https://forum.unity.com/threads/free-ambientcg-to-unity-texture-converter-1500-free-pbr-materials.1219455/