So, change of direction here... I just talked to the guy who I had thought told me that CC-BY-SA might require things to be open source, and he doesn't think that he ever said that, so I may be misremembering. At any rate, he wrote an entry on the CC wiki about it, which interestingly enough reads an awful lot like Blender's original post:
So, it looks like the answer to "Does CC-BY-SA force entire games to be CC-BY-SA?" is just "no", because it's been clarified by the CC in a similar way that the FSF has clarified the GPL.
So, Blender: I stand corrected. It looks like you were right the whole time.
> Ah. "parallel distribution". So my example of obfuscated art alongside unobfuscated art would probably work since it is the same distribution(?)
I don't know for sure, but I would avoid it, since it's still a "technical measure" that restricts access. As a general rule, just ask the artist first. They may be fine with it, particularly if the art is being distributed in the archive in an un-obfuscated form.
It's a perfectly good question. Unfortunately, CC-BY-SA doesn't allow for parallel distribution. It would be nice if it did, but I'm told that is legally complicated (no idea why).
I think mdwh is right. There's nothing in CC-BY-SA that requires source distribution, as far as I can tell. The GPL has some special clauses about redistributing the "preferred form for modification" (essentially, it's got a lot of safeguards against people weaseling out of distributing real, editable source code), but CC-BY-SA doesn't have anything like that.
Does using CC-BY-SA art require that an entire project be released as open source?
In brief: No, but it may or may not require that the whole project be released as CC-BY-SA.
Due to legal ambiguities about what cosntitutes a "work" of art and what constitutes a "derivative work", it has not (to our knowledge at the time this FAQ question was written) been officially established whther CC-BY-SA's share-alike requirement is triggered for the entire game project.
For artists, we recommend against depending on this license to prevent your work from being used in closed-source projects. However, interpretation of the license and enforcement of your copyright is up to you, so you can certainly attempt to enforce a broad interpretation of the license if you choose to do so -- you just may end up losing in court.
For developers, we recommend against using CC-BY-SA works in proprietary projects without first getting explicit permission from the author. This is both to say safe from legal threats and just as a matter of respect for the wishes of the artist.
Note that OpenGameArt.org can not enforce copyright on other artists' behalf, nor can we be held responsible if you are found to be in violation of a license. The licensing discussion in this FAQ is for informational purposes only. It was not written or reviewed by a lawyer, and is not legal advice.
Yeah, I'm not entirely certain how to go about it. I'll look into it. It may or may not require cooperation from Reddit.
I'd love to see people expand on these, for instance with a set of enemies or some more environments.
So, change of direction here... I just talked to the guy who I had thought told me that CC-BY-SA might require things to be open source, and he doesn't think that he ever said that, so I may be misremembering. At any rate, he wrote an entry on the CC wiki about it, which interestingly enough reads an awful lot like Blender's original post:
http://wiki.creativecommons.org/4.0/Games_3d_printing_and_functional_con...
So, it looks like the answer to "Does CC-BY-SA force entire games to be CC-BY-SA?" is just "no", because it's been clarified by the CC in a similar way that the FSF has clarified the GPL.
So, Blender: I stand corrected. It looks like you were right the whole time.
> Ah. "parallel distribution". So my example of obfuscated art alongside unobfuscated art would probably work since it is the same distribution(?)
I don't know for sure, but I would avoid it, since it's still a "technical measure" that restricts access. As a general rule, just ask the artist first. They may be fine with it, particularly if the art is being distributed in the archive in an un-obfuscated form.
It's a perfectly good question. Unfortunately, CC-BY-SA doesn't allow for parallel distribution. It would be nice if it did, but I'm told that is legally complicated (no idea why).
I'm not sure I like "simple" or "perfect" (I feel like "flawless" should be the best).
Maybe: flawed -> inferior -> average -> fine -> superior -> flawless
In case anyone misses it in the description, there's an extended version of this set here:
http://opengameart.org/content/extension-for-sci-fi-platformer-tiles-32x32
Kudos to rubberduck :)
I think mdwh is right. There's nothing in CC-BY-SA that requires source distribution, as far as I can tell. The GPL has some special clauses about redistributing the "preferred form for modification" (essentially, it's got a lot of safeguards against people weaseling out of distributing real, editable source code), but CC-BY-SA doesn't have anything like that.
Does using CC-BY-SA art require that an entire project be released as open source?
In brief: No, but it may or may not require that the whole project be released as CC-BY-SA.
Due to legal ambiguities about what cosntitutes a "work" of art and what constitutes a "derivative work", it has not (to our knowledge at the time this FAQ question was written) been officially established whther CC-BY-SA's share-alike requirement is triggered for the entire game project.
For artists, we recommend against depending on this license to prevent your work from being used in closed-source projects. However, interpretation of the license and enforcement of your copyright is up to you, so you can certainly attempt to enforce a broad interpretation of the license if you choose to do so -- you just may end up losing in court.
For developers, we recommend against using CC-BY-SA works in proprietary projects without first getting explicit permission from the author. This is both to say safe from legal threats and just as a matter of respect for the wishes of the artist.
Note that OpenGameArt.org can not enforce copyright on other artists' behalf, nor can we be held responsible if you are found to be in violation of a license. The licensing discussion in this FAQ is for informational purposes only. It was not written or reviewed by a lawyer, and is not legal advice.
Ah, good point. I'll update the question in a little while and post a new one.
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