piston suspension

[bailley]

Hey guys am working on a bike suspension and am really lost were to start can anyone help me out with this,,,,,

i need the suspension to react dynamically according to the terrain..i gave a try with projection something using a ray

sop and then trying to derive the motion from that but didn't work

[JuriBryan]

Can't you use a line that follows the exact animation of the Bike, Ray it to the ground, transform it in Y until it is at the center of the wheel after that use a carve so that you only have one point that moves at the same speed as the bike does(you would have to keyframe that I think) and then copy the wheel on that point.

Now the wheel should follow the terrain perfectly and you can animate the rotations around y on the wheel before it gets copied.

And if you want to get crazy you can probably use the normals on the rayed curve to look up in which direction and how many degrees the wheel would have to turn and drive to different chops with that information, so that the animation in Y is motion based and not a part more that needs to be animated.

Cheers,

Juri

[AdamJ]

Have a look at this.. might give you some ideas..

https://www.orbolt.com/asset/SideFX::wheelrig

(one thing I noticed.. after it downloads and opens an example hip file; the parameters get reset to their defaults; to load the file properly right mouse button click on the asset icon in the AssetBrowser->Prop->Wheel Rig in Houdini and choose 'Load Example File'. This will reload the file with proper setup)