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Trackdancer — MMD Tutorial on Chibi-sizing Motion Data
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Published: 2012-08-05 09:17:07 +0000 UTC; Views: 38480; Favourites: 673; Downloads: 433
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Description
Simple method on how to scale down motion data for use with chibi-sized models.Important Note:
The figures I used are for demonstration purposes only, they cannot and should not be applied in all circumstances. You will need to make adjustments to match each individual model and motion data set. So for example, when I did my Chibi Music Class video, although all 5 chibis used the same motion, each one required a different set of adjustment ratios (well 4 of them did anyway, Chibi Zatsune Miku and Chibi Miku used the same ratios).
Additional Notes: courtesy of Kas97
1/. Nendoroids will need to use ratios of around 0.4:0.9 - see his her notes in the comments below for specific details
2/. A useful tool (software) for fine tuning motion data to fit a specific MMD model: http: //yumin3123.at.webry.info/200811/article_1.html
Example video links (YouTube):
MMD Chibi Music Class - youtu.be/OYLAGXwKzaI
Related content
Comments: 224
Nope - just have to be good at guessing the correct ratio to use.
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For Nendoroid models, the position:angle ratio seems to be even bigger... I tested with Saboten's nendoroid GUMI model (I don't have Enamel-P's, he's closing his site until 7th August) and Senaka-P's Strobo Nights motion data, and the right ratio was 0.4:0.9 wwww
I guess that's because nendoroid models have fatter bodies than resized chibis... Anyway, can you add this to the description as a notice? So people don't have to blow their head up just to fit motions into nendoroid models wwww
Btw, I saw this introduced on Misakiru! blog: [link] It looks like it does the same thing this trick do, but I haven't tried it yet, so I can't tell the difference.
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You would be correct, the position:angle ratio would be greater for a nendoroid. The reason for this is because the positions of the bones in a nendoroid are distorted relative to the "norm" along with it's physical body.
The tool on Misakiru's blog looks interesting. Should be useful for people who want to/need fine-tuned motion data.
Noting your key points in description above - thanks
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Thanks for that. And btw, you've mistaken my gender
Btw (x2), do you know Japanese? Motion Converter looks useful but I don't know how to tweak it... If you know the language, you might be able to help with adding external translation.
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Opps - ok gender corrected
Japanese - I don't but based on Google Translate and the screenshots I've more or less figured out how the motion converter works.
Basically, you need to:
1/. Open the vmd file you want to convert
2/. The model that the motion data was built using
3/. The destination model for the modified vmd file
The program calculates the new values based on the relative positions of the center and IK bones. You can also enter parameters manually to fine tune the procedure.
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I needed this so much for Sara. Thank you!
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Nice to hear that you find it useful
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I learn something new today
I love it
Fave for future study
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Thanks for the comment and fave
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Thanks, glad to be of service
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This is excellent information & should work both ways.
currently I use 5 different bases on 9 models. could this be another editing tool so the motions applied could be more of a custom fit for the multiple bases used? (to reduce glitch) &
remain independent whilst sharing the same rendering time?
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All this tool does is scale motions, it works both ways (ie. you can scale up or down) - beats having to manually having to 'redo' motions. Only tricky part is figuring out the right ratios. Like I stated, there is a scientific way to figure the motions, I just don't know the maths for it.
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