[Robotics] IK Armature Chains in GameEngine?

[Florian Lier]

Thanks again,

this seems to be verrryyy dirty ^^ 
But I'll may give it a try...If there's something new - I let you know!

cheers, Florian
 


---
MA


----- Original Message -----
From: benoit.bolsee at online.be
To: robotics at blender.org
Date: 03.06.2009 17:40:08
Subject: Re: [Robotics] IK Armature Chains in GameEngine?


> 
> 
> > -----Original Message-----
> > From: robotics-bounces at blender.org
> > [mailto:robotics-bounces at blender.org] On Behalf Of Florian Lier
> > Sent: mercredi 3 juin 2009 14:00
> > To: robotics at blender.org
> > Subject: Re: [Robotics] IK Armature Chains in GameEngine?
> > 
> > 
> > Hey Benoit,
> > 
> > First things first, thanks!
> > 
> > Okay, as far as I understood you can "play" actions in the
> > GE... Maybe I wasn't precise enough: What I want is to 
> > controll the IK chain "live" in the GE with a keyboard or mouse....
> > 
> > I have an empty object which is the target for the IK chain,
> > when I create 
> > a Sensor, Controller, Actuator for moving the empty object in 
> > the GE the chain/arm doesn't move at all...
> > 
> 
> That's correct: the IK solver uses the Blender's object position to
> solve the chain, but this position is not changed during the GE session
> (GE converts blender object to GE object). That's why you must go
> through an action that moves one target bone of the armature itself.
> It's possible that you can change the bone position by Python but I
> don't know. 
> You can do something a bit tricky: create 3 actions that only drive one
> coordinate of the target bone: X, Y, Z. Make these actions strictly
> linear (1 frame = 1 meter + linear extension) and bind them to
> properties in the GE. Now you can control the bone in x,y,z by
> activating the 3 actions at the same time (same priority and no
> blending) and writing to the 3 properties the coordinates you would like
> to put the target. 
> I didn't test but I think it can work.
> 
> > Is there any tuorial or howTo?
> > 
> > 
> > Cheers, Florian
> > 
> > ---
> > MA
> > 
> > 
> > ----- Original Message -----
> > From: benoit.bolsee at online.be
> > To: robotics at blender.org
> > Date: 03.06.2009 12:13:45
> > Subject: Re: [Robotics] IK Armature Chains in GameEngine?
> > 
> > 
> > > Yes, IK solver is fully supported in the game engine, at 
> > least if you 
> > > take a bone of the same armature as target. Add a floating 
> > bone, make 
> > > it the target of the IK chain, create Actions to control it 
> > and play 
> > > the actions in the GE with the Action actuator: the IK solver will 
> > > compute the chain in real time in the GE.
> > > 
> > > Benoit
> > > 
> > > > -----Original Message-----
> > > > From: robotics-bounces at blender.org
> > > > [mailto:robotics-bounces at blender.org] On Behalf Of Florian Lier
> > > > Sent: mercredi 3 juin 2009 11:37
> > > > To: robotics at blender.org
> > > > Subject: [Robotics] IK Armature Chains in GameEngine?
> > > > 
> > > > 
> > > > Hello everybody,
> > > > 
> > > > I've modelled a robot arm including an IK Solver  which works
> > > > quite well. The next step would be, moving the robot arm with 
> > > > some input device in the GameEngine - my questions is: Is it 
> > > > possible to include the IK Chain in the GameEngine?
> > > > 
> > > > cheers,
> > > > 
> > > > Florian
> > > > 
> > > > ---
> > > > MA
> > > > 
> > > > 
> > > > 
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