I am sorry, I wasn't being clear; my intention was that there'd be a bpy-side python function that would start gameengine with the only intent of exporting a bullet-file (similarly to what I do with 2.49b). Would not require much coding since this would would effectively use the same c++-code as the bge-side function.
I don't know if there are some hidden problems to this and I think both bge- and bpy-export functions are required since they serve different purposes. Bpy-version would just provide clean access for exporting the data. Newbie, be patient please :) 2011/3/3 Mitchell Stokes <moguri...@gmail.com> > Joshua Leung's (Aligorith's) GSoC project last year involved Bullet > simulations in Blender (without using the BGE). I think he updated Bullet > in > his branch. You might want to have a chat with him. > > Cheers, > Mitchell Stokes > > On Wed, Mar 2, 2011 at 2:23 PM, Erwin Coumans <erwin.coum...@gmail.com > >wrote: > > > The BGE already has a perfect location for such 'exportBulletFile' method > > in > > KX_PyConstraintBinding.cpp > > This would only be around 10 lines of code, and I will add this > > debugging/export option soon. > > > > Doing it outside of this KX_PyConstraintBinding.cpp might require much > more > > work.It requires an up and running Bullet physics world > > btDiscreteDynamicsWorld. > > Is someone volunteering to do this work? > > Thanks, > > Erwin > > > > > > > > > > On 2 March 2011 14:11, Juha Mäki-Kanto <kiskos...@gmail.com> wrote: > > > > > 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 <moguri...@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.coum...@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 <dfeli...@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 > > > > > > > _______________________________________________ > > > Bf-committers mailing list > > > Bf-committers@blender.org > > > http://lists.blender.org/mailman/listinfo/bf-committers > > > > > _______________________________________________ > > Bf-committers mailing list > > Bf-committers@blender.org > > http://lists.blender.org/mailman/listinfo/bf-committers > > > _______________________________________________ > Bf-committers mailing list > Bf-committers@blender.org > http://lists.blender.org/mailman/listinfo/bf-committers > _______________________________________________ Bf-committers mailing list Bf-committers@blender.org http://lists.blender.org/mailman/listinfo/bf-committers