[Bf-committers] Bullet physics update

[Juha Mäki-Kanto]

Hi,

As Dalai Felinto said, I use the 2.49b export patch atm. to get the physics
data out of blender. I do this from makefiles so I've added a GE commandline
param (-g) export_physics = filename; with it the gameengine initializes,
does export and sets exitrequested to "true" before the main-loop.

All in all it's not neat so a bpy-function with similar results would be
nice from a model-exporters perspective, possibly with an
init_bge_pyscript-parameter which would allow advanced users to create
things only available from within the GE. I'm pretty new to bullet and
blender development so I'm not sure what problems this would cause compared
to just having a purely bge based solution.

Thanks,
Juha

2011/3/2 Mitchell Stokes <mogurijin at gmail.com>

> Nice to see you around again Erwin!
>
> bpy is available in the BGE if you're running from inside Blender. However,
> not from the Blenderplayer. Since this is more of a debug thing, I think
> this would be acceptable.
>
> Cheers,
> Mitchell Stokes
>
> On Tue, Mar 1, 2011 at 11:38 AM, Erwin Coumans <erwin.coumans at gmail.com
> >wrote:
>
> > Hi,
> >
> > That is a good idea but I don't think it is a full replacement unless BPY
> > is
> > available within the BGE.
> >
> > Having the option to export within the BGE allows you to 'debug' and
> export
> > a full running simulation.
> > Some constraints/joints are only added at run-time (vehicles for
> example).
> >
> > Is BPY that can access a running Bullet simulation, available inside BGE?
> > Thanks,
> > Erwin
> >
> >
> >
> >
> >
> >
> > On 1 March 2011 11:23, Dalai Felinto <dfelinto at gmail.com> wrote:
> >
> > > Hi Erwin,
> > > > I plan to add a single BGE physics API to export to a .bulle file,
> for
> > > > example exportBullet(char* fileName);
> > >
> > > What if instead of a BGE API you do it as a bpy API?
> > > That way one can write an addon to export the .bulle files. It should
> > > already be possible now, but having an API for that can be easier I
> > > guess.
> > >
> > > (as a matter of fact Juha Mäki-Kanto, who submitted the RigidBodyJoint
> > > patch, uses Blender exactly for this, to export the .bulle for his
> > > engine)
> > >
> > > --
> > > Dalai
>