how to make a joint less "bouncy"?

Games
#1

Hi there, have a hard time figuring out how to search for this. Basically I have some elements with the physics engine enabled.

When the elements are on their own, I can control the bounciness / restitution and make them not bounce when they roll along and hit a wall.

But as soon as I take 3 non-bouncy elements and make two of them a revolute joint to a third beam-like sprite, the combination of the 3 will now “bounce” when it hits a wall.

I can’t seem to figure out what parameter I need to change to make the joint-system less bouncy?

I am using just two revolute joints here.

Eventually I will also need to combine weld with revolute joints and make the entire system non-bouncy.

What’s the trick to make a joint have less bounce?

Thanks! [import]uid: 150267 topic_id: 31771 reply_id: 331771[/import]

#2

Hi there, just making a friendly bump to see if anyone has any ideas on how to affect the bounciness of a joint system.

Thanks! [import]uid: 150267 topic_id: 31771 reply_id: 127139[/import]

#3

Hi there, just making a friendly bump to see if anyone has any ideas on how to affect the bounciness of a joint system.

Thanks! [import]uid: 150267 topic_id: 31771 reply_id: 127139[/import]

#4

This must be possible to change? Giving another friendly bump to see if anyone has insight… [import]uid: 150267 topic_id: 31771 reply_id: 127851[/import]

#5

This must be possible to change? Giving another friendly bump to see if anyone has insight… [import]uid: 150267 topic_id: 31771 reply_id: 127851[/import]

#6

Hmm. I’m new to box2d as well. I have noticed that most problems can be traced to light objects being jointed to heavy ones. You could try varying the densities.

Also do your revolute joints have motors? [import]uid: 63787 topic_id: 31771 reply_id: 128574[/import]

#7

Take a look at the Ragdoll sample in the Corona sample directory. [import]uid: 8271 topic_id: 31771 reply_id: 128591[/import]

#8

Hmm. I’m new to box2d as well. I have noticed that most problems can be traced to light objects being jointed to heavy ones. You could try varying the densities.

Also do your revolute joints have motors? [import]uid: 63787 topic_id: 31771 reply_id: 128574[/import]

#9

Take a look at the Ragdoll sample in the Corona sample directory. [import]uid: 8271 topic_id: 31771 reply_id: 128591[/import]

#10

Thank you for some thoughtful input. I will try to change the densities, and, failing that, look at the ragdoll example and then loop back here with results. Thanks! [import]uid: 150267 topic_id: 31771 reply_id: 128708[/import]

#11

okay! finally fond the solution, make the wheels have very high density, much higher so than the cart/body of the system. hopefully this post will help someone else down the line! thanks for your help! [import]uid: 150267 topic_id: 31771 reply_id: 128709[/import]

#12

Thank you for some thoughtful input. I will try to change the densities, and, failing that, look at the ragdoll example and then loop back here with results. Thanks! [import]uid: 150267 topic_id: 31771 reply_id: 128708[/import]

#13

okay! finally fond the solution, make the wheels have very high density, much higher so than the cart/body of the system. hopefully this post will help someone else down the line! thanks for your help! [import]uid: 150267 topic_id: 31771 reply_id: 128709[/import]