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View Full Version : really convincing FRACTURE SIMULATION

staglider2
04-12-2004, 09:32 AM
Hi all, i have to do a real convincing simulation of
a big piece of rock that breaks of a mountain and after a freefall brutally hits the ground....the rock should break and fracture into smaller pieces, and the smaller pieces should break up once again..Is there a method to simulate physics based fracture/crack propagation ???

I noticed Reactor2 has fracturing, but the objects should be
pre-sliced into pieces and are held together until moment of impact.....but i could not find a method to procedurally slice a rock-like object into many smaller pieces...doing this by hand would take me _forever_

I searched internet for fracture simulation, but there is none...!

This MOV file by Christopher Thomas shows the way i need my
rock sliced and held together --->

http://www.christopher-thomas.net/divx/meteor_new_v2.mov


plz help...
Q'ba
04-12-2004, 03:51 PM
I'd say he pre-sliced the big chunks and added a particle system for the smaller pieces. That's your best route, I guess.
Rens
04-12-2004, 04:44 PM
Yes, it's very possible he used particles, at least the fire is.

Allan Mckay has a video of fractures with particles and has added some comments that may be helpful. Check out his site http://www.allanmckay.com

And Bobo seems to have a new tutorial (PFlow) on something similar: http://www.scriptspot.com/bobo/mxs5/pflow/

Rens
yoni-cohen
04-12-2004, 06:33 PM
try to make it a large rock, low poly and use a low poly object to do the chunks this way you get nice pieces with as clean as posible structre.
after making the main pieces turn them to poly and use the cut tool to add detail.
push and pull vertex to add more realism.

explode it to objects and use the fracture system to make the procedural animation.

I don't think it should take more then couple of hours to build..
amckay
04-12-2004, 11:11 PM
Chris Thomas made that scene .. did it ship with the max cd?
I have the file here, just wondering whether it was public or not...
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