Sorry, but closing the content would be against the spirit of a GPL project.
Also, reverse engineering to allow interoperability of formats is expressely
allowed in the DMCA. The content is protected by copyright law, that ought to
be enough. If plane developers are interested in creating content for money by
closing down the model format with drm measures they will have to go the whole
length and make their own flight simulator to run them on. But artificial
scarcity is destined to fail in an economy where content can be duplicated.
Btw, there's no actual way you can close completely a format, eventually it
would be possible to "rip" it, even from the graphic card memory.
> Date: Thu, 25 Aug 2011 11:44:57 +0200
> From: ad...@simtechnologies.de
> To: flightgear-devel@lists.sourceforge.net
> Subject: [Flightgear-devel] Content protection for modders?
>
> Hello everybody,
>
> not sure if this discussion arose before... From what i have seen so
> far, all usable 3d formats for aircraft/building models are either ASCII
> text or reversible/convertible formats. Mod developers told me, that
> they would wish close format for 3d models which would prevent reverse
> engineering of the content they create for free. I feel it is a legitim
> wish and would invite more modelers to join the FlightGear project.
>
> Is it legal to provide closed source plug-in to FlightGear (more exact
> OSG file reader plug-in). The only need to keep code close is the
> prevention of reverse engineering.
>
> Thoughts, suggestions?
>
> Best Regards
> Paul
>
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