Weak Bones

[yog]

Without seeing your setup this is a bit of a guess, but ...

By default the bones option "Multiply strength by rest length" is ON. This means that if you have some very large bones next to some much smaller bones the larger bones may be exerting too much influence over the smaller ones.

One way around this is to switch this option OFF, but it might cause some unexpected results.
A better option is to use a different weight map for each tenticle and asign the bones acordingly. This will eliminate cross influence in the bones.

[Carl]

Hi thanks for the reply. The problem is not cross influence, as their is only one tentacle. However, I'll try turning off the multiply by rest length option and see what that does. Right now the weight map is confined to the tentacle alone.

[Carl]

Nope, that didn't work. Hmmm. I have no idea.

[wgreenlee1]

Post a screen shot of what youre doing here.
Thanks.

[Carl]

Ok, the left shows the chain inside the tentacle thing. the right is what happens when I try to move it. It comes out of the geometry, while moving it slightly. The sphere has not moved. You can use it as a reference point.

[Mike RB]

you might have mistakenly rerested one of the bones while posed. Try going back the rest position on all the bones and re resting them. If thats the case I'd also get rid of 'r' as your rest hotkey, its a little too close to 't' and is not undoable.

Mike

[Carl]

Nope, they were all fine. Damn.

[feefunk]

I'm sure you've already checked, but have you verified your weight maps?

Is the geometry weighted correctly to allow it to follow the bones?



cheers,:beer:

[mjm]

Also, what's your falloff for the bones? If it's just "Inverse Distance," that may be the problem... (may need to boost it to ^128)

[Carl]

I re-verified the weight maps. Then I changed the falloff to inverse128. Still no change. blech.

[mjm]

There is always the option of sending the scene/object files to NewTek tech support, seeing as you get any and all help from the team for free. Another option would be to post the scene/content here so we all can take a look at the scene directly.

[feefunk]

you mention that your scene has objects of very different scales, while the tentacle might be really small...

Have you tried isolating just the tentacle (complete with IK) on a separate scene and changing the grid size?
You could even cut the unused geometry from the model and try again as a test.


The other option as Marc mentions, is to post your scene file here. I'm sure that the LW gurus here would possibly find a solution or come up with a workaround.


cheers,

[DigitalDeuce]

Yeah -- post or send that scene to us here.

I'll take a shot at it -- that's just not right.

:shrug:

[marioucci]

ok set the subdivision order of the tentacle model or layer to last:D:D:D

i know its pretty basic but worths a shot....
would like to check the scene to see whats wrong too...
cheers,
loggie

[MK2]

Loganarts iam sure it was that :)

If not, its getting intressting...

mk

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