Thread Suggested by Projectkmo.
Post here your ideas and tricks used for this challenge.
Know how to rig a car? Post it here.
Know how to model a car? Post it!
Know how to do complex simulations? Post it!
Looking forward to the posts, but please try to keep it
as application agnostic as possible.
-R
hello guys,
i have done some simple car crash test using reactor toy car and noise and volume select modifier. it is done in max7 using turbosquid free car model.
i hope u will get idea from this max file how i did simple car crash to collapse the front of car.
(note : i amended the curve of noise modifier “strenght vlaue” on frame 0 and frame 33.plz check it out on frame 0.it’s required little knowledge on curve.)
Download max Zip archive file : http://jigu.actkid.com/testcgtalk.zip
cheers,
[color=white]jigu.
[/color]
Thanks a bunch RobertoOrtiz for the thread…
Im Using MAYA …just so you all know…
I posted in several places…3DBuzz, here etc… looking for some ideas…but
However...I've been doing some research....and I cant seem to find any info regarding Dynamic Tearing/Damage to Objects..
I dont mean just knocking a wall of bricks over…but say you had a Poly Cube…12x12x12…and droped a Sphere onto it…CAN…you have the Teselation(12x12x12) Cube deform/crush in a bit on Impact from the sphere? Like two cars etc impacting one another…
I also looked into Maya Cloth and Syflex....neither apparently can be torn dynamicly....
So far my only option...and its not an easy one is to use realflow for tearing effects..
I Had, Planned on having a car lose controll go through the retaining rail on an overpass and fall into a Semi Trailer passing by below…I figured that the trailer…being a Hollow Rectangle container…would…break and tear a bit…as you may have seen in various movies…both practicly done and done with FX. But, as I stated above…I cant seem to figure out wether its even posible in maya.
Sure, I could have the car fal, hit the trailer and fall to the gorund…but im looking for some damage…heck, the car might even end up stuck in the trailer itself…
EDIT while a bit out of date…I watched a friends copy of Maya Rigid Body Simulations for Visual Effects…and even in the DVD, the guy says maya isnt realy set up for these types of things…though I think he was using Maya 4.0 in the video…
I could always use keyframes and hide unhide damaged versions etc…but Id rather try it dynamicly…
anyone have any suggestions and or tips?
thanks in advance!
Back to researching some morei think this thread is not coming good.
i have seen some ppl in this challange they get fear to share tricks.
i think they think they can lose the challange if they will share the tricks on this thread.
anyway this thread suggestion is good and thanks to projectkmo for suggestion like this thread.
but thread is not going good.
Anyone agree?
Hello!
Here is one trick for 3ds max users to smash their cars 
I think that I am not taking part to this competition but I still tried some techniques to smash a car…
I just used volume select with soft selection to the car, used a proxy cone as a selecting object and displaced the geometry with gradient mapped displacement modifier… this is very easy trick and took about 5 minutes to compile…
The movement of my car and it’s physics are not correct because this is just an example scene but I hope that you will get my point how I did this “smash effect”…
there is also this 1$ budget effect done with meshbomb (heheheh) you might want to try with particleflow instead or some kind of a fracture thing… ;D
Download the scene from:
http://www.homanen.com/download/3d/crash.rar
the part of the car is part of turbo squids free bmw model, so I won’t take credits from modeling it
And to Projectkmo:
Have you tried using Maya deformers like Lattice etc? You could for example deform your car with lattice and parent the lattice and its base (this is important) to the object that creates the deformation and vice versa… so that when your car hits the wall the lattice parented to you wall will deform the car…
lets get back to business…
-samulih
well as u r courious about how is is done.here is the file that shows u.how it is done.
well it seems very easy on low poly model.but if u r gonna use high poly model like car.than it is very hard to simulate car as a cloth.:twisted: i suggest that donot try cloth or any softbody simulator to simulate car crash.it will take hours of time to simulate the animation.well i found that using reactor cloth modifier and cloth collection in max, u can achive car crash animation.
but with cost of times.than i don’t think my computer can do.
well so what i find is using reactor u can’t deform car.deformation works good on low poly model.but when it comes to high poly models like car than it will take time to simulate deformation.
anyway good luck.
download file : http://jigu.actkid.com/newtest.max (it is max 7 version file)
hey all gr8 to see this thread for some valuable info.
for the reactor thing why don’t u go for the collision simulation using
reactor and create the damage using morph targets, this can be pretty
procedural. but u can get the location and morph the model.i’ve not tried
this but hope it works.
i need some help regarding modelling, i’ve modelled the car using poly, but now i also want to show the backface of the car which is probably invisible…
is there some technique with which the backface of the surface of the car can be generated
right now i cloning the selected surfaces using extrude and then applying normal i again adjust the extruded face to get proper backfaqce. but its too time consuming and also
increases the polys.
plz i urgently need help on this issue.
thanx blasphemy_3d,
but i think i’ve not explained my prob,
i want to model the backface of my car for interiors,
the 3 sided done’t show the width too…
so is there any faster method to get the backface up
so i don’t need to model and trace it again…
Here’s my render with a cylinder
I hid the cylinder
http://dl3.rapidshare.de/files/2557575/15288465/Secondcrash.avi
i also think some of the participants should post a tutorial ! 
samulih - i really liked your method for smashing that car. Could you please post in a little more detail how you set up that scene. i tried recreating it but im missing something because it just doesnt work.:shrug:
I have been ask by a few people about how I did the “crushing metal” in my roll over crash. so I am currently working on a tutorial that should work in any program that has dynamics, cloth and skin. it will be something simple, a metal box and a steel ball, but should give you simple ideas how to get a more random denting and bending of metal with sharper corners than hand modeling or plain cloth simulation.
please be patient for a few more days, I have a web page I have to update to get some money in my pockets.
Hey michaeljr.
I’d really like to see your tutorial! I think your simulation was wonderfull!!
–Lassjus–
, maybe someone post some tutorial here