[Bf-committers] could this be useful for blender ? opensubdiv

[Dan McGrath]

Is there a trend with open libraries lately?

Yesterday, someone was pointing out openvdb (volumetrics), which is
MPL (Mozilla Public License 2.0, and compatible with GPL according to
Wikipedia).

  www.openvdb.org/documentation/faq.html

Perhaps worth attaching to this threads discussion too, despite being
two entirely different projects and licenses.


Dan

On Tue, Aug 7, 2012 at 7:35 AM, Patrick Shirkey
<pshirkey at boosthardware.com> wrote:
>
> On Tue, August 7, 2012 12:45 pm, joe wrote:
>> I'm not sure I trust the FSF on this; it has a history of exaggerating the
>> restrictiveness of the GPL.
>
> That's a very strange thing to say about the FSF.
>
>>  If we want this library, we should consult a
>> lawyer to be sure.
>
> The FSF is pretty much a bunch of Lawyers.
>
>>
>> This site from 2008, http://www.opensourcelegal.org/?page_id=532 ,
>> apparently thinks MS-pl is compatible with GPL v3, which I believe would
>> cover our code (since we have the "or any later versions" GPL clause).
>> However, that was written in 2008, and the link to the FSF's website is
>> dead; not what I would call a reliable source.
>>
>
> Then why refer to it? It could be a propaganda site that was built by
> Microsoft to further their agenda.
>
> It is entirely reasonable to trust the FSF about GPL compatibility
> especially when discussing a Microsoft License as theere is a long history
> of M$ sabotaging projects and the last thing Blender needs is to give
> Microsoft an opportunity to scuttle the ship.
>
>
>
>> Joe
>>
>> On Tue, Aug 7, 2012 at 1:01 AM, Davis Sorenson
>> <davis.sorenson at gmail.com>wrote:
>>
>>> According to Wikipedia: (
>>>
>>> http://en.wikipedia.org/wiki/Shared_source#Microsoft_Public_License_.28Ms-PL.29
>>> )
>>> "According to the Free Software Foundation, it is a free software
>>> license
>>> but not compatible with the GNU GPL." [1]
>>>
>>> So of all the MS "shared-source" licenses it's the least bad, but still
>>> GPL
>>> incompatible. It looks very cool, apparently it's what Pixar uses in
>>> production so I imagine it is quite good. :) I noticed this quote from
>>> them
>>> on the project site:
>>> "Feel free to use it and let us know what you think through the github
>>> site." [2]
>>> Maybe it would be worth a try to contact them and ask them about using a
>>> different license?
>>>
>>> [1] http://www.gnu.org/licenses/license-list.html#ms-pl
>>> [2] http://graphics.pixar.com/opensubdiv
>>>
>>> Davis
>>>
>>> On Tue, Aug 7, 2012 at 1:48 AM, rsaavedra at ono.com <rsaavedra at ono.com>
>>> wrote:
>>>
>>> > Hi!,
>>> >   I have just seen that pixar has released a parallel subdivision
>>> > lib as "open" software and I was wondering if it would be interesting
>>> > to use it in blender.
>>> >
>>> >   http://graphics.pixar.com/opensubdiv
>>> >
>>> >   It is
>>> > released under Microsoft Public License, I haven't read the clausules
>>> > of that license and if it is compatible with GPL, I can guess that it
>>> > is not, but if somebody can ilustrate us ...
>>> >
>>> > --
>>> > Rafael Rios
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>
> --
> Patrick Shirkey
> Boost Hardware Ltd
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