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Stretching ropes

09-27-2006, 06:17 PM#1
Chriz.
Hey, I'm running into a problem. I'm trying to animate some ropes in Olof's Trebuchet model, so that they stretch between two objects at all times, so they can shrink when the objects are nearer and get longer when they are further away. I can't seem to find a good way to do this, any suggestions?

See a picture of the model here.
09-27-2006, 06:36 PM#2
olofmoleman
Or I can just post images here.
Attached Images
File type: jpgTrebuchetpreview.jpg (87.3 KB)
File type: jpgTrebuchetthrow.jpg (45.4 KB)
09-27-2006, 06:46 PM#3
Rao Dao Zao
All I can think of is that if your ropes are planes with vertices only at either end, you should be fine.
09-27-2006, 06:51 PM#4
Chriz.
True...I could then just make then connected, but seperate pieces, then link each piece to the right part of the trebuchet. In theory it should work.. but Im not completly sure. I'll check it out, but please more suggestions.
09-27-2006, 07:34 PM#5
olofmoleman
Quote:
Originally Posted by Rao Dao Zao
All I can think of is that if your ropes are planes with vertices only at either end, you should be fine.
They aren't, they have extra polys for bending (wich they infact don't need at all since they don't need to bend). but if those extra polys were deleted then one rope would be two planes crossed inside each other.
09-27-2006, 07:43 PM#6
Chriz.
Could you do that then olof? And then send me the new version, if I delete the extra polies the whole rope gets deleted.
09-27-2006, 07:43 PM#7
Rao Dao Zao
Quote:
Originally Posted by olofmoleman
They aren't, they have extra polys for bending (wich they infact don't need at all since they don't need to bend). but if those extra polys were deleted then one rope would be two planes crossed inside each other.

Absolutely nothing wrong with that. If your ropes are taut, considering Warcraft's general detail levels, you can get away with it no bother.
09-27-2006, 08:26 PM#8
jigrael
I think Ive solved the problem, that is if I understood right
The ropes should be a single boxed poligon, then ull need to cut it in half and attach heach part to one bone(could be a parent object), so if any of the bones moves the rope(in the viewer) will look as if its streching

edit: mmm its the same as Rao Dao Zao said :)

Im attaching the max file
Attached Files
File type: zipsomethings.zip (24.1 KB)
09-27-2006, 08:34 PM#9
Chriz.
Thank you, thank you, I think this is just what I needed : ) Only thing is, now Ill ave to do some model edits to this thing : P I'll get to work straight away (although sorry olof, Ill be away for the whole weekend starting tomorrow.)

Thanks again Jig, you taught me something new : )
09-27-2006, 08:36 PM#10
jigrael
Wait, I was editing the post n u posted, I think a better method is that u detach only one face of the rope mesh, Ive attached a test file in my last post, its something2.max. This way u wont need to but the mesh in half
09-27-2006, 08:46 PM#11
Chriz.
Yup yup, I see. I'll be working with planes though. I tested the same method with planes and it works too, so again thank you, you saved me a lot of worry : )
09-28-2006, 08:27 AM#12
abriko
This method work for all shapes, not just for plane.
09-28-2006, 05:26 PM#13
olofmoleman
Whoo! thanks you guys! rep for Rao Dao Zao and jigrael!!

EDIT: damn, it says I can't rep RDZ yet... :(
10-03-2006, 05:28 PM#14
Chriz.
Just to let you guys know, I got this working on the Trebuchet's ropes now perfectly. So thanks again.