Real-Time Physics Simulation Forum

Hello, ok, I found some MultiBodyConstraint (Fixed and Slider) that allow to use the btRigidBody as parameter. I tried a FixedMultiBodyConstraint and I can see 2 problems. One lead to a question that I wanted to do sometime ago. I would like to focus on this. I often need to connect a btRigidBody A ...

Hello Erwin, Can you tell me some more details about constraint between btMultiBody and btRigidBody? For example, assuming I have (in true, I already have :D) a btRigidBody and a btMultiBody, can I use a 6dofconstraint to attach them? A typedConstraint take 2 btRigidBody as parameter. In case of btM...

Hello, This is a general question in order to approach the development of an application using MultiBody and/or RigidBody. Think to a vehicle and some different articulated actuators (excavator, shovel, etc...). I would like be able to model the vehicle physic and then add the actuators to this one,...

Hello,

I'm looking at MultiBody API. I see addBaseForce and addBaseTorque. There is no vector to specify the position like the applyForce of RigidBody.

There is a way?

Many thanks, bye

Hello,

Simple question, I think complicate answer: can I attach a MultiBody base to a RigidBody with a joint (like hinge or 6dof or other)?

... And, if is not possibile, can I attach, at runtime, the bases of two different multibody?

Many thanks,

Bye

Hi,

Issue submitted:

https://github.com/bulletphysics/bullet3/issues/2115

Thanks, bye

Hello Erwin, ok. So, do you think this is a bug and not a parameters tweaks? I would kindly request if you can suggest to me some ideas about joint stabilization described here: https://pybullet.org/Bullet/phpBB3/viewtopic.php?f=9&t=12610 As son as possible I'll open the bugtrack on multibody. M...

Hello, I would ask some suggestions/ideas in order to stabilize motorized joint between PhyRigidBody. I try to describe my situation: I have a complex scene in terms of 3D objects, shaders and environment (underwater scenario). I have an underwater vehicle which has 6 forces applied (6 different mot...

Hello, I'm playing around MultiBody in order to overcome a constraint stability problem for a robotic arm chain in my framework. I wrote a simple urdf file (at the end of this message) loaded by the standard urdf multibody example. There are 3 links. The blue link is the fixed base, then we have a w...