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Physics in animation 

Alexander Rudenko
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In this video I talk about physics in animation. I explain what the center of mass, rotation speed, inertia and arcs are and how they work.
00:00 - Introduction
02:36 - 1. Center of mass
03:05 - How to make a center of mass
06:33 - 1.1. Balance
11:41 - 1.2. Rotation
15:21 - 1.3. Acceleration/deceleration
18:53 - 2. Rotation speed
23:44 - 3. Inertia (through movement)
34:08 - 4. Arcs
35:25 - Conclusion
Author: Aleksandr Rudenko ( / alexander--rudenko )
Rig: Kiel Figgins
#animation #tutorial #physics #centerofmass

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31 май 2024

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Комментарии : 51   
@adamszczesny2646
@adamszczesny2646 6 дней назад
That's an amazing tutorial!! I've managed to recreate your setup in Blender. I added a bone for a big hammer and during tests it turned out my run cycle was way off balance. That's a great tool, it's gonna speed up my blocking phase significantly - thank you for sharing it with us!!
@MaheshPagar0
@MaheshPagar0 Месяц назад
Your work has the great combination of Intensity, Dynamism and Creativity. 🔥🔥🔥🔥🔥 This lesson contains so much practically applicable information. Thank you so much for the English dub.
@michaellaviola6540
@michaellaviola6540 8 дней назад
Fantastic video! Packed full of great information, you should definitively do more!
@fsalad
@fsalad Месяц назад
With your personal works having an incredibly persuasive sense of weight, I really appreciate being welcomed into your mind and being allowed to take a look. I will use this video as a bible for my body mechanics!!
@ChesterSampson
@ChesterSampson 28 дней назад
Amazing video! I love hearing about your animation approach - WE NEED MORE!
@masasuzuki1762
@masasuzuki1762 24 дня назад
yoooo just 10 minutes in and ít already gold mine of technique, thank you brother
@Gamerstent
@Gamerstent 20 дней назад
this was explained so well thank you so much for these videos the way u teach is amazing
@SauceGodPluto
@SauceGodPluto Месяц назад
Super cool video! I've made the set up myself and have applied it to some existing animations has already been helping! Can't wait for more!
@georgevillaflor
@georgevillaflor 12 дней назад
Thank you for your tons of informations. 🧠
@JM-mi8cy
@JM-mi8cy Месяц назад
Never thought there'd be so many aspects😱 Thank you!
@kazamiyouji3214
@kazamiyouji3214 Месяц назад
Definitely going to be revisiting this throughout my animation journey, need to constantly remind myself of these topics/principles. Thank you for taking the time to make this!
@TheWildGamerIsHere
@TheWildGamerIsHere Месяц назад
Wonderful explanation, thanks for making this video!
@halilaksu8021
@halilaksu8021 Месяц назад
Wonderful explanation !
@animatorsculture
@animatorsculture 20 дней назад
Uau, esse vídeo mudou a forma como eu penso sobre física em animação. Eu já sabia do conceito de centro de gravidade mas não de forma aprofundada como agora. Спасибо ✌
@mohammadtaha1465
@mohammadtaha1465 15 дней назад
All that ammount of infromation for free! thank you.. really helpfull
@ericdrob
@ericdrob 22 дня назад
Dark magic! Awesome work
@murattahan
@murattahan 25 дней назад
it is a great video. Thanks for this!
@hmmm2898
@hmmm2898 26 дней назад
Amazing!!!!! Just what I needed thank you❤️
@thedung1411
@thedung1411 23 дня назад
Thank you for your sharing
@meetramani8611
@meetramani8611 Месяц назад
thank you for sharing the information it is very helpful
@slephy
@slephy 26 дней назад
thx for sharing all this! also...@24:19 might be the best reference I've ever seen :)
@GandRaya
@GandRaya 27 дней назад
Thank you so much!!
@ellerria
@ellerria 27 дней назад
Thanks for the great video! I enjoyed your various animated examples. It really helps to see these rules put into words/visuals because sometimes an animation won't feel right but it's hard to know exactly why that is, watching your analysis let some of those things click better for me! If I may ask, how did you re-bake the rotation animation in Maya at 13:48? Was that a copy and paste or something else? I'm still learning the program and the tools, sorry for any lack of understanding on my part :)
@alexanderrudenko7899
@alexanderrudenko7899 27 дней назад
Thanks) I simply transferred the rotation information to another locator, that is, it was as if I had changed the character’s rotation pivot. Doing this manually takes longer, so I used a script.
@suizenjiful
@suizenjiful Месяц назад
すばらしいね。
@jeffbb22
@jeffbb22 Месяц назад
AMAZING!!!!!!!!!!!!!!!!!!!
@helsi4300
@helsi4300 13 дней назад
Holy shit this was amazing to watch learned so much! Can u please make one detailed video like this for timing and spacing too pls
@alexanderrudenko7899
@alexanderrudenko7899 13 дней назад
Oh, I don't know, maybe later =/
@maccollo
@maccollo Месяц назад
The part about inertia and rotation game me an idea for another animation aid. Why not compute the inertia and angular inertia of the body and display is as an two arrows? Inertia is easy, just get the velocity vector of the invividual COM locators of each body part and do a weigthed sum with the masses. Angular inertia is a little more complicated, in the end is also a fairly simple forward sum a couple of a couple of matrix vector products. With these two arrows it will be possible to visualize how the angular momentum and inertia of the character changes. Physically implausible animation will manifest itself in these vectors moving around alot, since they should remain constant unless the character is actively pushing of the ground.
@alexanderrudenko7899
@alexanderrudenko7899 Месяц назад
As far as I know, this has already been implemented in the Cascadeur(software from Banzai.game).
@maccollo
@maccollo Месяц назад
Haven't tried Cascadeur but it does look interesting. Honestly I am surprised this if the first time I've noticed anyone talk about this. I was so impressed by your COM aid demonstration that I immediately implemented it into my own rigging script. Such a simple but useful tool: D
@jegsynes
@jegsynes 29 дней назад
Very interesting to get your explanation. I have colleagues in the Laban movement Analyzing (LMA) field who useLMA for animation. Do you have any knowledge of LMA or even use it if so?
@alexanderrudenko7899
@alexanderrudenko7899 28 дней назад
This is the first time I’ve heard about LMA =/
@cinemauntold
@cinemauntold Месяц назад
is it mocap animation ( the balance part animation)? for confirmation
@alexanderrudenko7899
@alexanderrudenko7899 Месяц назад
Yep)
@ghillyboy350
@ghillyboy350 22 дня назад
I saw some shadow fight 4 animation there did u work on them?
@alexanderrudenko7899
@alexanderrudenko7899 22 дня назад
Yes, I worked on this project
@Fusonxie
@Fusonxie Месяц назад
Thank you for taking the time to make this!Can you share Scripts?Thank you!
@alexanderrudenko7899
@alexanderrudenko7899 Месяц назад
pavelbarnev.gumroad.com/l/OverRigBasic?layout=profile
@Fusonxie
@Fusonxie 20 дней назад
@@alexanderrudenko7899 Thank you !
@bricktea3645
@bricktea3645 13 дней назад
Where can i find more info on this game?
@alexanderrudenko7899
@alexanderrudenko7899 13 дней назад
Game?
@wickyfrl
@wickyfrl 20 дней назад
how can you make a support point and add it to your rig
@alexanderrudenko7899
@alexanderrudenko7899 19 дней назад
wdym? The support point is our feet.
@wickyfrl
@wickyfrl 19 дней назад
@@alexanderrudenko7899 it shows the support point for you, is there some way i can add something to my rig that shows me my support point somehow
@alexanderrudenko7899
@alexanderrudenko7899 18 дней назад
Are you talking about the center of mass?
@wickyfrl
@wickyfrl 17 дней назад
@@alexanderrudenko7899 sorry yes, thats what i meant. did you manually add it onto your own rig?
@alexanderrudenko7899
@alexanderrudenko7899 16 дней назад
Yes, I explained how to do this in my other video, but I have not translated it into English yet.
@maccollo
@maccollo Месяц назад
Why is speed in space linear? Cuz Newton's the deadliest mf in space that's why.
@alexanderrudenko7899
@alexanderrudenko7899 Месяц назад
:D
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