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[MMD Tips] Groove Bones

1,599 views · Published 21 November 2017 · 1:43 · Indexed 18 October 2026

Channel: AngeliqueNade · 2017 · Film & Animation

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PLEASE READ.  TIPS DOWN BELOW.

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Some models you may find will have another bone placed near the Center Bone that is called a "Groove Bone."

While it doesn't seem like it can do much, you'd be surprised that it's actually handy.

The Groove Bone is somewhat similar to the Center Bone, but it has a different function to it.
While the Center Bone is obviously the center bone piece that can move the whole model, the Groove Bone functions as a second set to allow the model to "bounce", "lean", "shake" and "sway" more without disrupting a "stance."

An example can be shown in the video to the silhouettes dancing to あやはち's "Romeo & Cinderella" (male side) that heavily relies on the use of the bone.

The left silhouette is a model that does not carry the Groove Bone while the right silhouette does.
You can immediately notice a striking difference in the use of the motion.

Various other motions nowadays will start requiring the use of a Groove Bone.
(ex. Romantic Night, Mozaik Role -Solo-, Bad End Night)

So it is best advised to start getting use to having these around or you'll have some "stiff" models dancing if you're not careful.

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Here are some links to Tutorials [I'VE USED] that can help attach Groove Bones if you would like to learn how to add it yourself: 
1) https://your-friend-sushi.deviantart.com/art/MMD-Mother-and-Groove-bone-211234242
2) https://puroistna.deviantart.com/art/MMD-Tutorial-SemiStandard-Bones-for-PMD-Editor-296008375

Both can be done with either PMD or PMX Editor.

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Model: DarkFallenBlade & AngeliqueNade

Q: Which model is this?
A: I'll let you guys take your guesses.

Q: Can we have this model?
A: No.

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Music: Romeo & Cinderella -ANOTHER- 
Composer: doriko
Vocal: Anima (feat. Seiryu at the beginning that I edited in)

Motion: あやはち (https://www.youtube.com/user/ichijikumikan)

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This video was purely made for teaching & entertainment purposes. 

Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.

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