Is it possible to link 2 flexible objects so they move together
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Partington Gould
Registered User
Join date: 15 Sep 2005
Posts: 94
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04-16-2006 12:30
I've made a flag on a flagpole.
Both blow real nice in the wind, the pole flexes and the flag ripples.
BUT. They don't seem to be attached, even though I linked them under Tools. The pole will flex, but the flag stays fixed in space, just rippling.
I'm a bit of a novice, so if this question is better asked after release, then I'll wait.
Other than that, I love the flex and the new lighting options
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Dianne Mechanique
Back from the Dead
Join date: 28 Mar 2005
Posts: 2,648
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04-16-2006 13:03
From: Partington Gould I've made a flag on a flagpole.
Both blow real nice in the wind, the pole flexes and the flag ripples.
BUT. They don't seem to be attached, even though I linked them under Tools. The pole will flex, but the flag stays fixed in space, just rippling.
I'm a bit of a novice, so if this question is better asked after release, then I'll wait.
Other than that, I love the flex and the new lighting options AFAIK you can't link two floppy prims together and have it make any kind of sense. The floppy prim can be linked into a set of prims but always only flops off of it's "base" point. If the base point (in this case the pole) is also flopping over, the second floppy prim (the flag) will ignore that and still flop over based on its original base point. So both floppy prims will flop, but each will ignore the others flop and act as if they are flopping in isolation.
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Kettu Keiko
Registered User
Join date: 18 Dec 2005
Posts: 25
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Link-2-Flexibles Possible workaround?
04-16-2006 13:42
From: Dianne Mechanique AFAIK you can't link two floppy prims together and have it make any kind of sense.
The floppy prim can be linked into a set of prims but always only flops off of it's "base" point. If the base point (in this case the pole) is also flopping over, the second floppy prim (the flag) will ignore that and still flop over based on its original base point. So both floppy prims will flop, but each will ignore the others flop and act as if they are flopping in isolation. I'm not in the preview, but if you can't directly link two flexibles, how about using regular prims as attatchment mates. Have the flex-flag attatch to two tiny boxes or spheres which is in turn attatched to the flex-pole. will that work?
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Feynt Mistral
Registered User
Join date: 24 Sep 2005
Posts: 551
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04-16-2006 15:05
Nope, the flexing isn't really happening in world, only on the clients. Flexiprims are all phantom, and like llTargetOmega only "seem" to move but are actually rigid as a board as far as the sim is concerned. Thus, the floppy parts linked at the end don't translate and rotate with the rest of it. But we want it to, oh do we want it to... < wants to make a proper swaying tail with a rounded end >
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Logan Bauer
Inept Adept
Join date: 13 Jun 2004
Posts: 2,237
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04-16-2006 15:38
Sadly, the closest way I've found to approximate this is a hack that doesn't look too hot.
I tried to make a Santa-Clause christmas-type hat, a red floppy cone, with a white ball at the tip. The white ball was made using a transparent alpha texture (a clear image with a white ball located in the upper center). Then, making two flat billboards the same height and width of the cone, with this texture... Setting all the objects to floppy with identical parameters works (kinda) but seems like especially with wind on or moving around a lot the ball billboards and cone would snap in and out of synch.
So, something like this MIGHT be able to make a decent tail with a rounded tip... but not help in many other instances, like the flag/flagpole concept.
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Partington Gould
Registered User
Join date: 15 Sep 2005
Posts: 94
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04-16-2006 18:59
oh well, was worth a try.
I guess a 'stiff' pole and a 'floppy' flag will have to do....
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Rayve Mendicant
Scripts for L$5 billion
Join date: 12 Mar 2005
Posts: 90
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04-17-2006 10:02
I haven't ventured on to preview or worked with wind in SL, but from what I understand you can capture the wind vector in a script. If you were to recreate the wind movement with a script (physically offset the flag in proportion to the wind vector), would this not approximately mimic the positioning of the flagpole with a lot of tedious testing? Just going out on a limb there. The flag may not get the complete flex of the pole but at least move with it.
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Hypatia Callisto
metadea
Join date: 8 Feb 2006
Posts: 793
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04-17-2006 10:06
From: Feynt Mistral < wants to make a proper swaying tail with a rounded end >
my desires exactly 
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