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Parachute not billowing
show user profile  ugtv.org
I'm trying to make an animation of a guy jumping out of a plane and launching a parachute.

The requirement is that we see the parachute be released as we look down on him from the plane.

I've created a test parachute using reactor cloth, ropes at each corner, and the ropes are attached to the chute and a box that's acting as a place holder for the man. In between the ropes and the cloth are rigid bodies to attach the ropes to the box and the body to the cloth.

Wind resistance on the cloth is 100. I've added a wind helper, which didn't seem to make much difference.

You can see from the picture it isn't billowing and expanding like it should.


any guesses?
read 579 times
7/16/2006 5:19:09 PM (last edit: 7/16/2006 5:19:09 PM)
show user profile  Lukas
model the cloth in an open state to start with. If this does not help, perhaps you should just animate the cloth yerself without reactor
read 537 times
7/17/2006 4:41:27 AM (last edit: 7/17/2006 4:41:27 AM)
show user profile  Hedphelym
maybe it's in the simulation itself?
is the parachute modeled correctly? as in real-life?
what if you made a circular chute? like a sphere cut in half..?
read 527 times
7/17/2006 5:15:08 AM (last edit: 7/17/2006 5:15:08 AM)
show user profile  killerbee2
make sure the ropes don't stretch and have the right length.
Gonna try a scene like that, could be interesting...




read 520 times
7/17/2006 5:20:56 AM (last edit: 7/17/2006 5:20:56 AM)
show user profile  playford
i'm having a play at the moment. I did do this a while ago but if I remember you can't attach a cloth to a rope

Playford Tunnel Light

Freelance 3D Designer


http://tunnellight.co.uk

read 516 times
7/17/2006 5:37:44 AM (last edit: 7/17/2006 5:37:44 AM)
show user profile  ugtv.org
OK, so I got it to billow properly, but only by doing it upside down. Which will work, but now I'm running into the problem of how do I fold up the chute. I'm gonna try just rotating polys until I have a small little package, but if anyone has any other ideas I'm open to it.
read 483 times
7/17/2006 10:56:25 AM (last edit: 7/17/2006 10:56:25 AM)
show user profile  Pro TKer
Ok i had to do a similar project and i just ended up using morphs and what not. if i remeber correctly I I took the parachute and made a copy then took the copy and folded it up by changing the mesh. then used morphs to go from the folded to the unfolded. i think thats how i did it. and this was from a top down view as well. Overall it turned out all right. not realistic... but it got me by.

read 465 times
7/17/2006 12:06:54 PM (last edit: 7/17/2006 12:06:54 PM)
show user profile  maddog2002
for the correct billowing you need the friction caused by air if i am not mistaken...

you could have put a wind sw below the chute pushing it upwards... and a mass pulling the strings downwards...

no?...

the folding i have no idea... heh...


read 456 times
7/17/2006 12:52:05 PM (last edit: 7/17/2006 12:52:05 PM)
show user profile  Sypher-5
Just thinking how I'd approach such a scene, could you not place a sphere inside the folded cloth and scale it bigger until you get the desired shape.

I haven't played with cloth at all, so it may not work the way I think it does.
Signature Pending Redesign

read 437 times
7/17/2006 5:05:12 PM (last edit: 7/17/2006 5:05:12 PM)
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