The simplest way to credit a Sketchfab user for the free downloadable 3D model they've offered and you have used in your own work is to include some text and links next to your new work.
For example, if you downloaded and reused this model in some way, you would add the following somewhere alongside where you published your new work:
Each downloadable model is offered under a Creative Commons license. You can review the details of each here:
- CC BY - Attribution: depending on the NC, ND, and SA choices, others may share, edit, and use the model, but they must give you credit for the original work.
- CC BY-NC - Non Commercial: others cannot use your model commercially
- CC BY-ND - No Derivatives: others may use and share the model, but it cannot be altered.
- CC BY-SA - ShareAlike: depending on the NC choices, others may share, edit, and use the model, but derivative work must be shared under the same license.
No Derivatives and ShareAlike are mutually exclusive.
If the model author changes the license after you download it, that's ok, but the the license you received it under will always prevail. Per the Creative Commons rules:
"The licensor cannot revoke these freedoms as long as you follow the license terms."
Do I always have to add a credit for 3D models I download from Sketchfab?
Most of the time, yes. Because free 3D model downloads on Sketchfab are shared under Creative Commons attribution licenses, giving credit is a necessity for CC-BY licenses. (CC0 models do not require you to credit the author.) By downloading a CC-BY model from a Sketchfab user, you agree to credit that user wherever you publicly reuse their work.
Giving credit to artists whose work you reuse is not only legally required, it is a great way to say thank you to the artist and help other people discover the 3D models that you found useful too.
How do I use 3D models without giving credit?
If you want to use 3D models that do not require giving credit to the original artist, you can visit the Sketchfab Store and browse an amazing selection of royalty-free 3D models.
Sketchfab Store purchases do not require credit to the author, however, they do include a Standard or Editorial license detailing how they can be reused.