-
closing curtain problem
Hi, it’s been a while since I’ve had to use any animation lately so I’m pretty rusty. I am trying to animate a curtain being draw closed. I followed a great tutorial someone sent me and everything in the tutorial worked fine except this was a curtain opening. So I have my starting plane (Curtain closed)inside a cloth nurbs, ad the cloth tag, make my controller object and then belt the curtain to the object. Now is when everything get whacky. Even though I don’t have anything animated, when I hit play the curtain scales/stretches? in the Y axis right off the bat. When I look at my F curvers or timeline I don’t see any key frames at all. What may I be missing and how do I get this to stop doing this?
-
7 Replies
-
the cloth engine is animating the curtain, you will have to control it there – stiffness settings etc likely
-
Brian,
Thanks for the reply. I’ve checked all the cloth tag properties (all the tabs) they are identical to what they were in the tutorial. Nothing is animated – no key frames have been set. In the timeline and Fcurve windows there are no key key frames — not anything. The only way I can stop the curtain from stretching is to belt all it’s points to the control object that draws the curtain closed.
I’m attaching the file so if there is anyone out there that can figure out what I’m doing incorrectly it would be greatly appreciated. You’ll see the curtain stretches right away. At frame 589 the control cube starts to pull the curtain closed. The top stretches out but the bottom stays the original size.
-
the point of Clothilde (and Dynamics etc) is that you don’t have to have keyframes, they are engines which mimic real world physics to some degree based on their settings. The curtain stretching at first is just natural as the cloth engine lets the cloth relax into where it should be based on the cloth settings.
Why the curtain doesn’t open properly must have to do with the settings – Flexion is set at 50 but in spite of it’s name it’s a form of stiffness so it should be lower, even set at zero it’s not opening correctly so I suspect the structure of the curtain has to change but it will take some testing. -
Brian,
Thanks for your input. I think I may have this figured out to some extent. I have to actually start with the curtain drawn closed first, open it, then render the animation from the frames where it’s stopped it’s movement to where it’s closed again. If I do it that way the curtain doesn’t stretch at all in the Y axis and the top and bottom stay in the proper perspective.
-
Yeah that’s the trick, let it drop then render after it settles. I did a modification of the curtain structure which opens much better (here on 10.5 anyway)
-
Brian,
Thaks for the file. Unfortunately because I’m running v9.6 I can’t open it. I ended up just belting all the points to the control object because I was running out of time and needed to get this done. Hopefully I’ll be able to upgrade to v11 real soon and I can dig into this a bit deeper. Thanks again for your your help.
Mike
-
too late now, by the sound of it but it would open in the 11 demo…
Reply to this Discussion! Login or Sign Up