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["Asset repositories and generation tools"]
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["This page is a collection of websites that are useful when gathering 3D models, textures and sound effects/music for games or XR applications, as well as tools used for the generation of new assets. A large number of these assets are licensed under the Creative Commons licenses, but commercial websites tend to use their own special licensing."]
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["NOTE: Just because an asset is listed on a free website does not mean it's okay to use. It's generally not okay to use 3D models of trademarked objects or logos, stolen models or models of real patented objects without permission. It's not okay to use sound effects sampled from existing songs or movies. It's not okay to use images of real people without permission from those people. Check if the author's other works matches the asset you're interested in, and isn't stolen from other websites."]
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["NOTE: Avoid anything with an \"editorial\" license. These are generally assets with common trademarks in them and are not okay to use in anything but non-commercial editorial purposes, such as in a newspaper article."]
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["NOTE: Paid assets are often linked to the account which paid for them. This can cause issues if a personal e-mail is used when buying assets as ownership cannot be easily transferred to the project."]
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["Always keep a list of all the assets you use in an application, with a link to the original source. This simplifies attribution."]
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["License","Description","Link"]
["CC0","Creative Commons 0 are \"codified\" public domain assets, and are free to use for any purpose without giving any credit. It's polite to attribute the creator.","https://creativecommons.org/publicdomain/zero/1.0/"]
["CC-BY","Creative Commons Attribution allows you to use an asset as long as you properly attribute the original author and changes made to the original.","https://creativecommons.org/licenses/by-sa/2.0/"]
["Other CC licenses","Other Creative Commons licenses have certain restrictions which make them complicated to use, such as CC-NC which dissallows commercial use, or CC-ND which forbids creating derivatives.","https://creativecommons.org/"]
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["Good CC attribution:","https://wiki.creativecommons.org/wiki/best_practices_for_attribution"]
["Example:","\"title\" [link] by Author [link] licensed under License [link]","Note: The author may have specific instructions for attribution which should be followed."]
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["3D model repositories"]
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["Website","Description","Link","Licenses"]
["Blendswap","BlendSwap is a 3D asset sharing site with Blender models.","https://www.blendswap.com/","Creative Commons. Do not use fan-art."]
["Sketchfab","Sketchfab is a free/paid 3D asset repository with user-submitted content.","https://sketchfab.com/","Creative Commons or Standard License. Do not use Editorial content."]
["CGTrader","CGTrader is a free/paid 3D asset store with user-submitted content.","https://www.cgtrader.com/","Royalty Free License. Do not use Editorial content."]
["Turbosquid","Turbosquid is a free/paid 3D asset store with user-submitted content.","https://www.turbosquid.com/","Royalty Free License. Do not use Editorial content."]
["Unity Asset Store","The Unity asset store has a lot of 3D assets for Unity games.","https://assetstore.unity.com/","Asset store EULA"]
["3D Warehouse","Not recommended due to its convoluted licensing. You are not allowed to include 3D models from 3D warehouse in a research project without permission from the original authors.","https://3dwarehouse.sketchup.com/","3D Warehouse TOS"]
["Quixel","Megascans which are free for use with Unreal Engine, with other licensing for all. Megascans are scanned 3D assets.","https://quixel.com/megascans/","Paid licensing for non-Unreal engines."]
["Thangs","Thangs is a community-driven repository of 3D models mainly focused on 3D printing.","https://thangs.com/","Creative Commons and licenseless (Implicit Copyright)."]
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["3D model generation/animation"]
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["Tool","Description","Link","Licenses"]
["MakeHuman","MakeHuman is a human creator with the ability to export rigged humans.","http://www.makehumancommunity.org/","Exported humans are your own but downloaded assets like clothes may have other licenses."]
["SweetHome3D","Sweet Home 3D is a free architectural design software. The application uses 3D assets under different licenses.","http://www.sweethome3d.com/","http://www.sweethome3d.com/license.jsp"]
["Mixamo","Mixamo is a library of full-body character animations which can be used with rigged humanoids.","https://www.mixamo.com/","Exports are free for personal and commercial use"]
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["Texture repositories"]
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["Website","Description","Link","Licenses"]
["ambientCG","AmbientCG, previously known as CC0Textures, is a repository of Public Domain textures made for Physically Based Rendering.","https://ambientcg.com/","CC0"]
["Wikimedia commons","Wikimedia commons has a lot of Creative Commons and public domain licensed images.","https://commons.wikimedia.org/","Creative Commons"]
["HDRMAPS","HDRMAPS has paid HDRI environments and skyboxes. There are also free samples available for commercial use.","https://hdrmaps.com/","https://hdrmaps.com/terms-of-use"]
["Unsplash","Unsplash is a repository of user-submitted images and photographs. Avoid \"editorial\" marked images.","https://unsplash.com/","https://unsplash.com/license"]
["Textures.com","High-quality HDR paid textures and 3D scans.","https://www.textures.com/","https://www.textures.com/faq-license"]
["Filterforge","Procedural parametric texture generation.","https://filterforge.com/","Own copyright for generated textures"]
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["Sound repositories"]
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["Website","Description","Link","Licenses"]
["Freesound","Freesound is a free sound effect repository with user-submitted content.","https://freesound.org/","Creative Commons"]
["Sound Ideas","Sound Ideas and Hollywood edge are paid sound effect libraries.","https://www.sound-ideas.com/","https://www.sound-ideas.com/Page/Sound-Ideas-End-User-License"]
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["Sound generation"]
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["Tool","Description","Link","Licenses"]
["Audacity","Audacity is an audio editor useful for editing and remixing sounds.","https://www.audacityteam.org/","Audacity is open-source and free."]
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["Mixed repositories"]
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["Website","Description","Link","Licenses"]
["Open Game Art","Open game Art has a lot of videos, 3d characters, textures, animations and other assets for games.","https://opengameart.org/","Creative Commons"]
["Poly Haven","Poly Haven has CC0 licensed HDRI environments and hyperreal 3D models.","https://polyhaven.com/hdris","CC0"]
["HDRI-Hub","HDRI-Hub has paid HDRI environments, sets and 3D models.","https://www.hdri-hub.com/","https://www.hdri-hub.com/terms-of-use"]