Upcoming Asset: eDWS Double Wishbone Setup / Suspension Movement - Fast, efficient, pre-calculated.

blabla .. show me the demo!

Hi there,

when using the Unity Wheel Colliders, the suspension movement is basically limited to the local Y-axis of each wheel, like a rigid axle - but broken in the middle. There is no camber, caster, [insert a lot of technical terms here].. When used for a usual, common car this is not really a problem - the car body covers the wheels, the movement of each wheel (suspension travel) is indeed limited and more or less stiff.

But for a buggy-like vehicle (or other open wheel race cars) this is a not a nice solution. A double wishbone suspension (mostly used here) affects each wheel separately. Suspension distance, body roll, jumps.. without a common car body covering the wheels, you can see an open chassis - and how it's linked together, moving and twisting.
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Depending on the given geometry of each axle and the local Y-position of each wheel, my first approach was a script which calculates a mathematical approximation in realtime, but (including Mathf.Lerp-s etc.) this was too slow and and could be unstable. jitter jitter ..No, please.

Now, I came up with a solution and it works great, stable and efficient.
After modifying my first approach into a kind of setup-mode/scene, this little tool is now able to pre-calculate any double wishbone geometry and store it inside only two AnimationCurves (per axle). Evaluating AnimationCurves is easy, and it's fast. This + just a few lines of codes is then needed for final implementation.
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Each wishbone / link you can see (bright red) has a fixed length. On pre-calculation these values were shown and later the links were modeled with these given, exact measurements. There is no further tweaking, no 'hacks'

Please try my demo, share your thoughts and wishes! Thank you!

I am planning to release this as an Unity Asset. Around 30 USD.​

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- My solution is not limited to be used with WheelColliders. It is dependent solely on the wheel's local Y-position.

- please keep in mind, this is work in progress. More features will be added. (example: visible, moving springs / shock absorbers)

Please feel free to tell me, if you would be interested in such an asset.
If there is a reasonable interest, this would be available in about 2-3 weeks​

 

No one? Didn't expect that.

 

As a long time car\racing game fan one of my wishlist projects has always been... a driving\racing game. Any extra assets that might eventually tip me over he edge and get me started on that goal are more than welcome. Nice job.

 

Thank you Ony this is still a prototype and still on my list, my hope is to get a bit more feedback / responses for this project

 

Looks nice, when will it be released?

 

Very interested in this, but for the demo I'd love to be able to drive it around and playtest on a Unity Terrain and have some other objects thrown in for testing.

 

Yay, thanks for the interest and likes so far.
Ian I answered your PM,sorry for the delay I'm not checking the forums every day

by now I am checking how everything could be optimized and kept as accessible as possible. But I can not guarantee when this leads me to something *finished* and a beta or release @TiToMoskito @iansnyder

 

How well does this work with Unity wheelcolliders?

 

Hey iiblackbird, good!
The Demo scene uses wheel colliders

 

looks like you've got quite a few folks interested

how are things going? any eta on release?

 

I have a hard time finding the right features and limitations for this. I have the feeling that most of the people who would buy this asset would like a drag-in-scene'n'play solution. :/

Another idea is, to provide pre made chassis configurations and also, document everything very well - and adding a tutorial or how-to-make-your-own - doc.

 

Good ideas so far.
What about attaching a "blank" suspension component to the vehicle's main game object. Then just have the user assign each part to its matching field. And then maybe a few fields for the limits? I'm assuming each wheel would at least need an upper and lower arm like in your demo? Then maybe have a way to add extra parts?
Then have a demo scene to give an example of a prefab ready to go.

 

I get your point hamyshank.

In the end it should work - out of the box Of Course, otherwise I don't think it's not Asset Store-worthy ;-)
Give me a few weeks, please. I started with it (game) after posting this (thread) in September and didn't know if it would be worth the work :/

 

Hi Dennis_eA,
Any updates on this? I'm interested in some code like this...even if its not "Asset Store-worthy".

Thanks!