[Robotics] Verson Control of .blend files

[Herman Bruyninckx]

On Mon, 9 Nov 2009, Gilberto Echeverria wrote:

>
> We are now a bit further in the development of the openRobotSimulator on
> Blender, working with two developers.


That sounds great! Could you share something about the functionality you
have added, how it is being done, how it can be used, where you still want
to go, etc? One of the things that were mentioned some months ago on this
list was your goal to be able to get the images from several cameras out of
Blender; have you made progress on this topic?

Herman

> We have a fair amount of
> components defined, each of them in separate .blend files.
> The idea is to be able to store each component separately (sensors,
> robotic parts, cameras, etc.) and put them together into a new .blend
> file to assemble any particular kind of robot.
>
> It is at this point that we come to face two problems:
>
> 1. Maintaining a consistent repository of the .blend files
> We are currently using a repository in Launchpad, using bazaar. This is
> now creating a problem, since there doesn't seem to be any change merger
> inside of the .blend files, because they are binary files. So working
> concurrently makes change control a problem. This applies to changes
> both to the python scripts inside the blender files, as well as to the
> 3D models of the components.
> How do the Blender Foundation projects keep track of their files? For
> instance for the films and games developed in Blender.
>
> 2. To create a new robot, we do 'appends' of the component pieces.
> For example, append a camera to a robot.
> If the same process is repeated, the new objects for the robot and
> components get new names like robot.001, camera.001, along with the
> scripts and textures associated to them. This creates a lot of problems
> with the python scripts, since they have to guess the new names. Is
> there a way to keep things like scripts and materials as links shared by
> several objects?
>
> I hope my questions are not too confusing. Any help with this problems
> will be greatly appreciated.
>
> All the best
>
> Gilberto
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>

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