[SOLVED] JointHinge goes elastic

[cem.orsel]

Hi,

 

I have created a hinge joint, and defined its parameters:

 

nozzle_joint.setLinearSoftness(0.0f);
nozzle_joint.setAngularSoftness(0.0f);
nozzle_joint.setLinearRestitution(1.0f);
nozzle_joint.setAngularRestitution(1.0f);

I assume these parameters should set the joint as a very rigid, rotational only joint. But the result is as follows: http://www.youtube.com/watch?v=_RkIihusyAc

 

What am I missing here?

[cem.orsel]

Still no idea? I did use a workaround solution defining the nozzle as a child object of car, and moving it kinematically. But it would be nice to be able to use hinge joint.

[azagniy]

Hi. Sorry for late reply.

 

Actually, setting a linear restitution as 1.0f to joint should solve this problem. Unfortunately, I can't reproduce this case in my sample. Can you send your world sample?

Thanks!

[cem.orsel]

Hi, this is my whole project data folder: https://www.dropbox....nge_problem.rar

 

Thanks.

[silent]

Hi, We still investigating this case. We can't reproduce such behavior when joints are created manually in Editor. This behavior only appears when joints created from code.

 

Could you please try to use other joint type (for example, Cylindrical)?

 

Thanks!

[cem.orsel]

Well the JointSuspension of wheels, for instance, are also created from the script, and they work fine. This sounds odd.

[alterego]

 

nozzle_bodyrigid.MaxLinearVelocity should be equal to or greater than car_bodyrigid.MaxLinearVelocity.

[cem.orsel]

That solved it, thank you very much.