Let me chime in here. The following is a section of Viewpoint's end user licensing agreement. It is typical of this type of agreementand mainly prohibits the use of 3D models and pictures (datasets) in any way the the original content can be extracted, or can be used as part of a colletion "for sale" used to create other work (clip art) "You may (i) access, use, copy and modify the Datasets stored on such computers at such single location in the creation and presentation of animations and renderings which may require runtime access to the Datasets, and (ii) incorporate two dimensional images (including two dimensional images that simulate motion of three dimensional objects) derived from the Datasets in other works and publish, market, distribute, transfer, sell or sublicense such combined works; provided that you may not in any case: (a) separately publish, market, distribute, transfer, sell or sublicense any Dataset or any part thereof; (b) publish, market, distribute, transfer, sell or sublicense renderings, animations, software applications, data or any other product from which any original Dataset, or any part thereof, or any substantially similar version of the original Dataset can be separately exported, extracted, or decompiled into any redistributable form or format, or (c) publish, market, distribute, transfer, sell or sublicense any image created from a Dataset as "clip art" or the like, including but not limited to animations or still images that are sublicensed or otherwise distributed by a stock photography or stock animation agency, or in any other manner in which the primary source of value derived from publishing, marketing, distributing, transferring, selling or sublicensing the image is that it is accessible in a manner similar to "clip art." Subject to the foregoing limitations, and the rights, if any, of third parties in or to the objects represented by the Datasets, you may copy and distribute your animations and renderings derived from the Datasets" -SMT

I'd rather stay in my lane than lay in my stain!