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Creating a Realistic Animated Cable/Rope/Flex Added on: Tue Dec 04 2001 |
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Intro
The effect of creating a realistic animated cable has long been sort after for users of MAX and most 3D programs.
I came up with the following solution after a conversation with Jarno Cordia (www.3dluvr.com/mccordia). He showed me a work in progress animation he had done which had a perfectly animated wire/rope effect. I asked him how it was done, and he said he used the free Sim cloth plugin (www.chaosgroup.com) and a lot of experimentation.
My attempts at trying this before had not been too convincing, but knowing it was possible gave me a challange. By the next day I'd recreated the effect, and on comparing notes we had done it exactly the same way.
The problems I'd encountered when first trying the effect with Simcloth was how to maintain a cylindrical "rope" without it collapsing in on itself and becomming 'ribbon' like. Hours of playing with the bond range and bias gave better results, but there was always crimping and folding which ruined the illusion.
I was reading through the Sim Cloth help files and something clicked when reading about the bond range. If every vertex is pulling on the other equally then it stands to reason that a triangular prism cannot collapse inwards......
Making a Cable Follow a Mouse
Here's the idea in practice to make a mouse lead follow the movements of a mouse. My anim can be seen  here.
Download Sim Cloth from www.chaosgroup.com. It's an amazing plugin and what's more its completly free. If you haven't already tried it then I recommend doing the tutorials on the site and familiarising yourself with it.
Create a plane in the top view, this will be our desktop. Assign the Sim Cloth modifier as a deflector.
Create the object to which the cable is connected. In my example I used a detailed computer mouse, although for speed and the sake of this tutorial you can use a simple cube. Apply the Sim Cloth modifier to it, and set the Type to deflector. This will stop the wire moving through the mouse later.
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