[Bf-committers] 2.49: prevent reading 2.5+ ?

[Diego B]

On Mon, Apr 13, 2009 at 3:36 PM, Dalai Felinto <dfelinto at gmail.com> wrote:
> Would be possible to have an option in Blender 2.5 to SaveAs Blender 2.49
> file format?
> That would be the expected behaviour in my opinion.
> I'm sure it means more work (probably a lot of work), but I can see demand
> for that :/

I think that the idea of rename from .B.blend -> .B25.blend  is that
you can keep using both blender
without problem and as far I can see write old file become almost
imposible because the changes.

>
> Dalai
> http://blenderecia.orgfree.com
>
>
> 2009/4/13 Ton Roosendaal <ton at blender.org>
>>
>> Hi all,
>>
>> Currently 2.48 and older will still read 2.5+ files, but without the UI
>> (obviously). That was still sort-of acceptable.
>>
>> Now with new animation system, all of the motion data will get lost if
>> you read 2.50 .blends in older versions. And even worse, the plans for
>> bmesh also include minor upgrades in Mesh data, making it unreadable in
>> older versions too.
>>
>> Without animations or meshes, there's not much use keeping 'forward'
>> compatibility. It's even very hard to predict if you don't get crashes
>> even... So, my proposal would be:
>>
>> - Add in 2.49 (trunk) a warning menu + failure to read 2.5+ .blend
>> files.
>> - Make 2.5 save the ~/.B.blend as ~/.B25.blend (this to prevent
>> usability issues).

+1 for me, just my opinion :)

>>
>> -Ton-
>>
>> ------------------------------------------------------------------------
>> Ton Roosendaal  Blender Foundation   ton at blender.org    www.blender.org
>> Blender Institute BV  Entrepotdok 57A  1018AD Amsterdam The Netherlands
>>
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