YOHKOH Posted August 21, 2009 Share Posted August 21, 2009 Hi All Can anyone point me towards a tutorial on animating an umbrella opening using cloth Help would be much appreciated Link to comment Share on other sites More sharing options...
SandmanNinja Posted August 22, 2009 Share Posted August 22, 2009 Can you model the 'spine' of the umbrella, rig it, and then skin it with a cloth modifier? I'd get the mechanical aspects working before doing the cloth modifier. So, build and rig ONE 'spine' and work it through the full range of movement (I'm thinking a custome attribute with value=0 is closed and value=10 is opened). When that works, circle array clone it around the central 'stick'. Test to see if the rigging followed you properly after the clone. When the opening motion works, then put a surface on the 'spine' (a number of ways to do that - clone the 'spine', move it up away from the original 'spine', then bridge them together) Link to comment Share on other sites More sharing options...
Peter M. Gruhn Posted August 22, 2009 Share Posted August 22, 2009 Maybe a bend modifier with "angle" wired to the rotation. Some kind of massively increasing bit of math for extra realism. Something with exp() or maybe square or cube then divide by a thousand or something. Just so the line stays pretty straight until near the end. While real umbrellas use the tension in the shell to restrain the ribs, probably better faking it, yeah. Link to comment Share on other sites More sharing options...
Claudio Branch Posted August 24, 2009 Share Posted August 24, 2009 Something with exp() or maybe square or cube then divide by a thousand or something. Sorry, but this sounds like a word problem phrased with no knowledge of grammar! I take it you don't really care for math either? Link to comment Share on other sites More sharing options...
YOHKOH Posted August 24, 2009 Author Share Posted August 24, 2009 Thanks guys Doing it with bones and IK. Turns out its just the same as rigging a spider. Just have to get linking hierarchy right. Still testing garment maker but looks promising Link to comment Share on other sites More sharing options...
Peter M. Gruhn Posted August 24, 2009 Share Posted August 24, 2009 You can't take it, I wasn't giving it. Just suggesting some paths I think might prove useful, but not feeling like doing the leg work that time. Link to comment Share on other sites More sharing options...
YOHKOH Posted August 25, 2009 Author Share Posted August 25, 2009 Ok I'm getting somewhere with this. Only problem is with cloth simulator. I;me stting up the intial state with simulate local. All works fine, the cloth drops with gravity and recognises the collision objects. Then all of a sudden when i run another test, the vert groups just ping upwards and the cloth doesn't move. As if the gravity has been turned off. ????? Link to comment Share on other sites More sharing options...
SandmanNinja Posted August 25, 2009 Share Posted August 25, 2009 you have to reset the simulation, i believe. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now