[NOW WITH SOURCE] Mesh deformation on impact

Hi guys,

today i wanted to play around with meshes and manipulating them on impact.
The result you can try here:
http://vidiludi.com/unity/mesh_impact_damage0_0_2.html

Just drive into walls and jump over the ramps and watch what happens

Controls:
WASD - steer
space - handbrake
r - reset

EDIT:

download it here:
http://vidiludi.com/unity3d-prefabs/

 

I crashed at high speeds and didn't notice any changes

Tried ramming my front and back into the walls

 

I didn't see any changes, too...

 

After a few (really just a few) crashes i get this result:




Perhaps i will post a more sensitive version tomorrow if noone gets this car crashed.

 

After hitting the walls a few times there definitely are changes, but they should be much more pronounced. When I use a ramp and crash upside down into a wall, I expect the car to not get out of that alive.

Am curious as to how far you can push this deformation. It's a good start and would probably interest the people who are involved here

 

I agree, you should definitely increase the damage rate.
At 170 mp/h a car should be squished to half when hitting a wall straight

 

UPDATE:
- now it breaks more fast
- bugfixes (Quaternions are hell )
- now it rocks

please try it out

 

any plan for sharing the project??

 

I thought about selling it for a few bucks when it's polished.

(need to earn my Unity 3.0 update )

 

Definitely notice the crumple in the updated version 8)

 

Sensitivity is much better now.

Some questions/suggestions

For a realistic car deformation, you should look into also deforming the top of the car. Whenever I land upside down, nothing happens to the car roof.

Have you also implemented different materials and how they react to deformation? While repeatedly hitting the front of the car, the engine block should stay fairly intact, because it's a massive amount of metal, while the back and sides of the car should deform more easily.

 

Nice, better. I would still increase sensitivity a bit, though.
Still running at 170 Km/h into a concrete wall would mean a complete car squash

 

very cool! 8)
Ron

 

Pretty darn cool.

 

Wow! this is cool. I like that the engine sounds like a moped.

/§

 

Will your scripts for this work in Unity Indie? or would us developers need to own a pro version?

 

satrio: it's from a moped you have good ears!

MakerOfGames: it will work for indy, too. It's just one script which manipulates the vertices of the mesh.

 

can anyone tell me how this type of mesh deformations can be implemented under the hood?

 

Hi Ethan,

What's the update of your project? Is it already stable? If you don't have the will to share it, may I know the cost of it.. I just need an idea of mesh deformations for my game..

Thanks

 

Hi,

i am now releasing the code and the whole example project.

If this package helps you, if you are using it in a commercial project or if you want/need support, i would be happy if you consider a small donation.

download/donate here: http://vidiludi.com/unity3d-prefabs/

You will find a detailed description of the script in the readme file.

Have fun, hope it helps you

 

Thank you! After reading this thread I started looking at how to implement a system like this myself(and realized its much harder than it seems.) With your code base I hope I can make something very functional for my game project. Thanks again!

 

I get a "403 forbidden" message when trying to go to that link. The root url is also denied.

 

Me too :roll:

 

sorry i just failed at changing to permalinks

now it works again

 

The script is awesome and you rock! Thank you for sharing it with the community

 

Might have found a slight bug. I ended up hitting the ramp at such a speed I was launched really high up, then when I fell the mesh got so deformed I couldn't drive it anymore. Either that or I just hit the ground so hard to wheels got stuck under it.

 

psychicparrot:

thx
I first thought about selling it, but well ... if someone finds it useful he could still donate.

wbokunic:

The wheels are under the ground! That's more like a car physics problem
It might not be the best car script ever.

 

This is badass! You're the man, Ethan!

 

The easiest way to keep the wheels out of the ground is to move the bottom of your car body collision down so that the body will ground before the wheels go through.

Cheers!

 

I've recently been messing around with the car tutorial (me and a hundred others!) so I put the damage script in there tonight to see how it'd do. I think it's great!

http://psychicparrotgames.com/blog/?p=116

Still a long way before it becomes a proper game, but hey it's quite fun just driving around bashing into the AI

Cheers!
Jeff.

 

thanks for the kind words on your blog

looks cool in the game

 

Far simpler than I imagined (which is definitely a good thing!) Great work Ethan.

 

thanks

If anyone makes some cool improvements or extensions, please post a demo or source!
8)

 

I roll my wheels back and have a part of your code in my work for agressive deformation simulations. (When the car falls from height, for example).
But for precision damage, your code is inapplicable.

And, if I'll have a sales, I promise to donate your work. Thank you. :wink:

P.S. I have altered code on 50 %
But, sorry, I can't share modidfied variant right now.

 

I'm glad i could help.

Hope you have success with it

 

Thanks a lot Ethan for sharing.. We all know that after mesh deformation we should modify the car collider as well.. Anybody who has the idea on how to update a box collider of the car after the deformation?

 

If i would have to guess i would say you'd have to sync transform.collider.bounds with the bounds of your deformed mesh (mesh.bounds). 8)

 

does this work on iphone?

 

I dont see a reason why it shouldnt

 

Awesome!

perhaps something that lets the axles bend?

 

Hi Ethan, can you really help me out?

Can you say where to apply the car deformation script, because i have it added in car tutorial, next to car controller script but nothing happens?

Thanks!

 

You will need to add the "Body" gameObject (the actual car body mesh gameObject, not your car gameObject) to the Optional Mesh List in the inspector window for Ethan's script.

The Optional Mesh List means that it will modify specified meshes. If you leave that blank, it will try and modify the mesh attached to the gameObject you have the script attached to - since there is no mesh attached to that car gameObject, it won't do anything.

Hope that helps.

 

Thanks!!!

 

Thanks a lot! I owe you a beer!

 

I think quite a few people owe Ethan a beer (I've seen meshes getting impacty squashed all over the place recently!)

There *is* a donation box on his website - I'm sure it takes beer money!

Jeff.

 

Lol this is awesome. definitely increase the sensitivity.

 

... but I am able to buy him one.
(I see him every weekday.) 8)

 

Awesome! Makes me wish I was in Munich right now ...

 

efge: unfortunately we don't have a beer machine at work

Yes, munich is the unofficial unity central

 

Hehe last time I went to Munich, it was the unofficial beer central too!