I thought I could share with you guys four free websites for physics-based rendering textures. All of these website allow you to freely download textures at any available resolution. They also do not require you to create an account.
AmbientCG
- Website: https://ambientcg.com/
- # of Textures as of September 2022: 1761
- Public Domain CC0 1.0 license
- Textures come as image files
cgbookcase.com
- Website: cgbookcase.com
- # of Textures as of September 2022: 535
- Public Domain CC0 1.0 license
- Textures come as image files.
Free PBR
- Website:https://freepbr.com/
- # of Textures as of September 2022: 434
- $9 fee to use textures commercially
- Textures comes as image files, but have been prepared for use in Blender, Unity and the Unreal Engine.
Poly Haven
- Website: https://polyhaven.com/
- # of Textures as of September 2022: 288
- Public Domain CC0 1.0 license
- Textures can be downloaded as a Blender file with shader nodes and lighting already set up. They can also be downloaded as a GLTF file or as image files.
It should be pretty easy to set up the shader nodes. Just connect base color/albedo/diffuse to Base Color, height/roughness to roughness, normal to normal and so forth. If you have an ambient occlusion texture, just combine that with your color texture using a MixRGB node.
And here's a comparison of similar textures from each website:
Spoiler [Blocked Image: https://i.imgur.com/YWgyPfB.jpg]
(Full sized image can be viewed here)
All of these balls were rendered in Cycles using the lighting that came with Poly Haven Blender files. If I had to choose, I would say Poly Haven textures look the best, in that they're a lot bumpier than textures from the other three websites. This might be because Poly Haven normal maps look like this, while the other normal maps look like this.