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Let's git gud: Exercise 07 - Overlap/Follow-through

Started by: Unbounded | Replies: 20 | Views: 8,017

Unbounded

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Apr 26, 2016 3:43 AM #1447287
https://www.youtube.com/watch?v=bl0bL9EHDUg&feature=youtu.be

Another attempt at this one. I felt good about everything except the ending.

Quote from Creepin_Bro
Ima participate in this, so I'll edit this post or make another when I'm done
(this is good for me, cause I am a beginner animator)

EDIT: I got no decay done: http://sta.sh/016pt8gqq3ha


Thanks for joining in on the fun! (Contrary to popular belief, these are good for pretty much anyone who wants to animate, even if you've been doing it for a while!)

-Good job keeping the general form of the squash/stretch. You seem to have the basic idea. You only need a little bit more finesse to get it just right.
-Remember though, that you're doing a 2d representation of what is in actuality a 3d object. This means the volume has to be consistent. As it flattens out in one dimension it has to stretch in another, and vice-versa. This applies to the entire animation, not just the extremes/contact positions. For instance, upon the contact you have another frame where you just scaled it down without paying attention to how it spreads out as you do that. A couple of frames before the contact position you did something similar as well. The end result is it looks like it's just getting flattened like a pancake, not squashing like a ball.
-Don't forget your timing and spacing! It's the most important property here! As the ball falls the spacing between the frames should be increasing. It shouldn't stay constant.
-It's squashing for way too many frames. Remember, it's a bounce. When you add that many frames to bounce it no longer appears to be bouncing.

That's all I've got for now. Keep it up!

Quote from TheOrigin
Horizontal movement w/ decay w/ pokeball
http://imgur.com/SvXIztT


Sweet. I appreciate the effort for sure!

-The properties of a pokeball are fairly rigid, aren't they? It shouldn't be squashing nearly that much at the contact position. As it is it looks more like a plush ball or a stress ball.
-You need to stretch as well. The stretch is roughly proportionate to the amount of squash you'll have on the contact position. With how you have it it isn't stretching at all, but it is squashing a ton. This is inconsistent. Unless the properties of the object in question are changing you want to stretch as much as you squash.
-Volume preservation! As I said to Creepin_Bro, what you're doing is representing a 3d object (The ball) in a 2d plane(the canvas). It won't just flatten when you squash. It'll also extend at the sides!
-While it's in the air, its horizontal speed is roughly constant. Sure, air resistance exists, but it may as well be negligible for what we're working with.

Overall not bad, but it could be better. Keep workin' at it!
TheOrigin

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Apr 26, 2016 9:17 PM #1447330
are we allowed to retry our submissions with the things you pointed out?
Unbounded

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Apr 26, 2016 10:38 PM #1447333
Quote from TheOrigin
are we allowed to retry our submissions with the things you pointed out?


Well of course. I'd actually prefer if you did that. I mean, I redid each of mine at least once for each exercise. :P
TheOrigin

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Apr 27, 2016 12:44 AM #1447343
Quote from Unbounded
Well of course. I'd actually prefer if you did that. I mean, I redid each of mine at least once for each exercise. :P


Alrighty! I thought that was something only you were doing lel
Unbounded

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Apr 27, 2016 3:41 AM #1447349
https://www.youtube.com/watch?v=87lMZtIHcP8&feature=youtu.be

First shot at the pendulum.

I realized after the fact that I made a massive mistake in the motion on the right swings. It should be decaying but it just, yknow, isn't.

I'll definitely have to keep this in mind for the next couple of tries.

https://www.youtube.com/watch?v=HS3zWOo2YKI&feature=youtu.be

Second attempt.

This is freakin' hard.

-Figuring out how much to decay the pendulum is the hardest part. I'm going to try a few different ways to do this. I looked up a bunch of references and while it seems like mine is giving off the idea of how a pendulum works it isn't quite where it needs to be. I'll have to try this quite a few more times before I get it.

-I screwed up massively towards the middle of the animation. There it's hardly decaying at all. I have to fix that.

I'll sleep on it and give it another shot tomorrow.

4/28/2016:

Third go at this:

https://www.youtube.com/watch?v=NxG3Pn2vHFU&feature=youtu.be

I'm actually a lot happier with this one. Any feedback to improve it would be great.

4/29 - 4/30

Finished this:

https://www.youtube.com/watch?v=p_PlLr3DPQU&feature=youtu.be

Tried decreasing the time for each period. I think I may have gone too far in the other end. The sweet spot is probably roughly 17 frames between peaks, so I'm aware of that now.

Uh, anything anyone can point out would be nice.
S.A.

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Aug 22, 2016 9:01 AM #1458598
For the pendulum animation, maybe on its first return you could remove a bit more energy because right now it almost looks like there's no loss of energy there and (though I'm not very strong in physics) I think the loss of energy in a pendulum is consistent?
It's been a while since I animated so I thought I'd give this a shot (nobody's posted in my unrust thread yet ;-; )

Bouncing Ball - No Decay
http://sta.sh/010c3z83fztm

Bouncing Ball - No Decay (TWEEN)
http://sta.sh/0ttw0jz7eka
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