[Bf-committers] collisions detection without gameengine

[Sergej Reich]

There is pretty much no API for collision detection in the BulletDev
branch.
The only thing you can do is setting up rigid body simulations.

Adding it would be possible of course, but I don't think it would be
useful right now except for a couple of fringe cases.

If it's needed for the diploma we could add some collision detection
functionality in a separate branch.
It won't be completely straightforward though and would probably require
a couple of hacks to work.
I could look into it over the weekend when I get some free time if you
want.

Keep also in mind that the game engine and the rigid body simulation in
the BulletDev branch are two completely separate systems, so reusing
each others data won't be easy.

Regards, Sergej.

Am Mittwoch, den 18.04.2012, 13:09 +0200 schrieb Lukas Tönne:
> Hi,
> 
> You might be interested in the Bullet Integration branch by Joshua
> Leung (aligorith) [1]
> This implements Bullet physics, including all common collision shapes,
> in the main Blender scene, without the need to use the game engine. I
> don't know how complete the python API is though, better ask Joshua
> himself about this.
> 
> Cheers
> 
> Lukas
> 
> 
> [1]
> https://gitorious.org/~aligorith/blenderprojects/aligoriths-blender/commits/BulletDev
> 
> 
> On Wed, Apr 18, 2012 at 11:59 AM, P2sta <p2sta at atlas.cz> wrote:
> > Hello,
> >
> > I'm working on my diploma work and I'm in need of detecting collision in
> > blender without starting the game engine.
> >
> >  I set a game logic to check for collisions, but I need to start the
> > game engine to make the actual detection, which is unneeded.
> >  My teacher said to me I can edit the source code to make acces to the
> > bullet physics directly without the game engine (I need just the
> > collosions) so
> >  I get the binaries, but I'm pretty lost in where to start and what do
> > I need to edit. I did searched through most of the bullet physics files,
> > but didin't find anything yet. I'm new to c/c++ but I can learn fast.
> >
> > I would like to keep it the way that I set the game logic and just call
> > lets say bpy.ops.scene.detect_collisions() and I will get a list of
> > colliding objects, if that's even possible.
> >
> > So, I would like to ask if you have some ideas that could help me.
> >
> >
> >  Thank you in advance for any help!
> >  Zbynek Hlava
> >
> > P.S. sorry for any grammer mistakes, English is not my nativ language
> > _______________________________________________
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