Non-Destructive Bone Scale

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Non-Destructive Bone Scale

Postby KuzKuz » Wed Jul 26, 2017 8:11 pm

Here's my next video. A little trick how to scale bones preserving the joints. The video is in Russian, but English subtitles are available.

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Re: Non-Destructive Bone Scale

Postby Greenlaw » Wed Jul 26, 2017 8:52 pm

That's a cool trick, KuzKuz!

I actually needed something like that yesterday and decided I could live with the slight distortion I was seeing. It's good to know I might not have to now. :)
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Re: Non-Destructive Bone Scale

Postby synthsin75 » Wed Jul 26, 2017 11:36 pm

I've been doing that with vectors for ages, but great idea to expand it to images. Nice work.
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Re: Non-Destructive Bone Scale

Postby neeters_guy » Thu Jul 27, 2017 12:16 am

Yes, it's a good trick. The only thing to note is that adding those extra 'hold' bones will break the IK chain.
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Re: Non-Destructive Bone Scale

Postby Greenlaw » Thu Jul 27, 2017 12:40 am

Should be ok if you enable Ignored By IK for those bones, shouldn't it? I use this option all the time for holder bones at the elbows or other 'accessory' bones, and IK is maintained.

Edit: Oh, wait. Will have to try it but I think I see what you mean.
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Re: Non-Destructive Bone Scale

Postby neeters_guy » Thu Jul 27, 2017 5:18 am

I should have mentioned that I noticed this when I tried this technique in earlier versions of ASP. Of course, Moho has the "Ignored By IK" option and that seems to solve this problem.
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Re: Non-Destructive Bone Scale

Postby Greenlaw » Thu Jul 27, 2017 5:39 am

Oh, good. I had wondered if the parenting might interrupt IK because the bones were in-line with the chain but that probably doesn't make sense now that I'm thinking about it. (It's late here.) :)
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Re: Non-Destructive Bone Scale

Postby hayasidist » Thu Jul 27, 2017 12:10 pm

yeah -- plus if you use pin bones rather than regular bones on the ends you get "ignored by IK" automatically.

it's also possible in some situations to use bone strengths rather than point binding -- e.g. region-bind the points on the ends in the pin bones' areas of influence
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Re: Non-Destructive Bone Scale

Postby jahnocli » Thu Jul 27, 2017 12:26 pm

Very helpful - thank you!
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Re: Non-Destructive Bone Scale

Postby negroclarito » Mon Jul 31, 2017 10:03 am

Very good :D . Thank you KuzKuz
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