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Cable\Rope from Start to Finish (Tutorial)

Posted By 4u2ges 6 Years Ago
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3dtester
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Okay, i don't have a video yet, but here's a still render.
It is of course somewhat difficult to animate this :crying:

https://forum.reallusion.com/uploads/images/943c714e-67cb-4248-94a2-9f89.png






Rampa
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The shape of your end effector will make a big difference. Using spheres, the cable will be able rotate around them. But cubes will will pretty-much lock-out any rotation. You can also do cylinders, giving rotation in one degree only.

This may help for animating, as you can point the cable where you want by adjusting the effector.
4u2ges
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Nice render 3dtester.

Yep, Rampa is right. You may just change the Bound Type to Box (regardless of shape of the lock - it can still be a ball or a capsule or whatever).
Just need to be a little more careful with animation, not to fold the tube as it would stop revolving.

In addition, for a better handling of the tube with 2 hands, you may add a pocket in the middle of the tube (or where ever you need it).
Here in Blender I duplicated 4 slices of the tube, moved it to appropriate location and attached it to the main body (by connecting with regular faces).
Then again hid those faces by the mean of opacity map so that it is invisible.
As you see, now I can independently animate the End and the Middle pocket locks. So you may use 2 hands to do it I suppose.
In addition, you may change the mid pocket lock to box type also, so that is would not swing inside the hand.
(With a couple of more pockets and shaping and texturing of the tube appropriately you can make a snake I suppose. Possibilities are endless.)




OK. So I do not know what Zane was trying to do there. But certainly not to fill up a gas tank. :)
I only animated Zane here with End and Mid locks (both are box type) linked to his hands. Only at the end I lowered a little the very top lock to give some slack there.






3dtester
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Not that it seems not possible, but... :ermm:







Rampa
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@3DTester

I would reverse the tube, or rather the weight map of it. Use black to anchor it to nozzle, and an internal  lock at the pump end. I think it will be more durable that way.
4u2ges
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You are pretty much close.
I wish I could see the locks location. Looks like you have another one in the middle somewhere.
But regardless, there is only one reason for snapping out - forcing/moving cable against law of physics.

Take a look at 0:32. The tube is about to fold because it has nowhere to go.

https://forum.reallusion.com/uploads/images/88b8b852-fdef-4c3a-ac3f-b9d0.jpg

The main line (after the fold point and up) has to be moved outward a bit to release tension and pressure (that is what would have happened in real life).
Again, I am not sure where the locks are, their position, angle and shape. And also camera angle does not allow to see whole picture.

There are other ways to operate/tweak cable/tube - external rigid objects animated on the fly to push it externally one way or another.

You can sure use weight map to permanently lock one end. And it might or might not help. Since the tension is still there, it might just force the tube to fold.

Bottom line - while *driving* the tube, you should watch for tensions and release it where necessary. Tube has to be *relaxed* and natural during whole animation.







3dtester
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Thanks for your support guys.
I use the sphere lock, plus 2 small capsule locks.

https://forum.reallusion.com/uploads/images/a774ceb5-a026-49c6-b19b-41ee.jpg

https://forum.reallusion.com/uploads/images/6b4a0aa9-032d-477f-a0f0-f170.jpg

But now i found one big issue, which i can change easily.
Since the tube is pretty long, i had previously rotated it slightly forward.
This could be the main 'physical law' break (besides that the nozzle raises from below ground ;))
Now the tube is at 90 degrees, which it should have always been.







4u2ges
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That looks much better :) Be waiting for the full animation.

Meantime, I'll be doing my own retro short with gas station pump (maybe I'll just blow it up - I mean if there is a gas station, there has to be a big bang :w00t:)
Hopefully, I will pull it through, cause I did abandon a lot of projects due to lack of time and the will to finish :Whistling:


https://forum.reallusion.com/uploads/images/4db67f13-4356-44c4-9bae-b1dc.jpg





kungphu
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Wow! This is stellar work. Can’t wait to start playing with this.:)

My "NEWEST" Latest:)  Movie Made With Amaaaazing iClone


—> High Noon”ish” in Narrow Valley<—



4u2ges
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kungphu (5/23/2020)
Wow! This is stellar work. Can’t wait to start playing with this.:)


Thanks and looking forward for your workout :)






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