Pancake’s easytoon movement help thread!
requesting if its ok to keep this thread here , mods?
Yes people, I’m willing to help out people who don’t know how to animate a specific movement.
seeming as most of the animations lack alot of stuff on movements.
“I’d like to know how to animate a spinning kick?”
the movements requested will be updated into this post with the requesters name in front of it.
go ahead and ask if you need help 😉
mint: “What are physics?”
Straight from wikipedia:
Physics is the science of matter and its motion as well as space and time — the science that deals with concepts such as force, energy, mass, and charge. Physics is an experimental science; it is the general analysis of nature.
but the most important physics for animation you need to know:
as you can see, the ball is affected by gravity, this means the vertical speed of the ball is lowering with a certain speed.
here we see a ball moving from left to right with easing. the ball slowley starts off gaining speed, comes to a climax, and then slows down.
The above is a sample of high friction, friction occurs when two objects slide over eachother, like the above box, the ground is very rough, so it gives more friction and the box comes to a stop very fast.
in this example the ground is almost like ice, it has a very flat and slippery surface so the box has a very low friction with the ground and thus, can move further and comes to a stop a bit further outside of the screen.
Antything that moves has a force affecting it, in this example its a catapult. when the catapult shoots it builds up force to propel the ball into the air, if the catapult shot faster(less frames for the swing) the ball will have more momentum and will shoot further.
A force could also be gravity, since it “pulls” an object to the ground with a certain force.
The stick and the gravity are the forces here, the stick swings it’s arm to build up force so the ball can move forward.
you might also have noticed that the ball slows down alot when he first hits the ground. Exactly! thats the friction right there. if the ground was made of ice, the ball would probably come to a stop outside of the screen. but the ball is a bad example to show friction since it has a very small surface that touches the ground, and thus has less friction.
see the gravity to? and the easing? yes. when the ball comes to a dead point in the air (ease out because it slows down slowley till it comes to the dead point , then falls down with speed increasing) then the gravity pulls it down!
as you follow the arcs you notice how the ball bounces lower, thats because the gravity wants to pull it to the ground, if there was no gravity there would basicly be no easing and the ball would bounce straight back with a lower speed instead of coming to a stop on the ground.
bazamm: “And, say a place had a lower gravity then earth, how fast would the person move and how high would they jump?”
Just see gravity as a vertical force that pulls you down, if you jump with a force of 10, and there’s no gravity, you will continue along the universe in the same direction with the speed of 10.
like in this example:
If you jump with the force of 10 , and there’s alot of gravity, you will jump, and ease down very fast to the speed of 0, then you will ease in and speed up by the gravity that is pulling you down.
like in this example:
also, if we were to run with no gravity, we will move up towards the sky, because we set off up in the air, then normally the gravity will pull us down, then we repeat the steps, but if there is no gravity there is no force to pull us down, so we drift off into the air.
So the less gravity there is, the less force there is to pull you down, and you will continue further along your path with the same force.
Don’t read this part if you don’t want things to get complicated:
If there is no gravity, and you go really fast, you wont be moving along with the same speed forever, why? because there is AIR FRICTION, because you are moving trough the air molecules at a high rate, they force eachoter to stay in the same form they where in, so what happens is, you slow down a slight bit, the faster you go, the higher the air friction is.
another example is try and put your hand out of a driving car, you will notice that your hand is pulling back right? exactly, that is because the air molecules want to stay in form, and your hand is the one who is trying to break them.
puinkey: “if we hammer the ground with something heavy until the ground breaks , will there be any rocks flying . Like when you hit water , it will make a splash , and if it is the ground ?”
This depends on how hard the floor is. the harder the floor the further away debris will fly. lets take ceramic tiles for example, These tiles are so hard, the molecules hold eachoter VERY tight. If you hammer it with something really heavy, the molecules are forced to let eachother go, when this eventually happens, there is so much force behind the molecules, that indeed Debris will fly off into the sky.
lets take another example: soft dirt ground.
not very hard now is it? nope. but try and hit dirt with a heavy hammer. you notice that some “particles”of dirt go up a slight bit. why is this? this is because of the shockwave that your hammer creates. the ground shakes so much in such a short time, that some dirt particles will fly a few cm up. like in the ceramic example, if you hit the ground, the dirt molecules eventually pack up very tight and have nowhere to go, so where do they go? to the sides! they can’t go up, nor down, so they will “splash” to the sides.
Examples later today (also the dirt theory thing with the shockwave might be a slight bit off)\
Example of dirt with slight hard surface:
bazamm: “Does the movement you make whilst in the air effect how far or how high/fast you will jump?”
If by Movements in the air you mean, Jump, and then move your arms or anything, no, it does not affect how far or high/fast you jump. unless you can spin your arms at mach1 or something. see it as a propellor, but you cant swing your arms that fast.
samples soon 🙂
stare: “If two objects are moving at each other (with HIGH force), how do you determine which will penitrate through?”
shape will determine wich object will penetrate trough another, say we have 2 boxes coming at eachoter at high velocity, they are both flat, so none of them will penetrate eachother, they will most likely bounce off of eachother or collapse at eachoter.
say we have one box and one triangular shape pointing at the box, coming at eachoter with high velocity, the triangular shape would most likely penetrate trough the box because it has a pointy shape like a knife.
another factor to keep notice of is, material.
if the triangular shape is made of paper, and the box out of stone, the triangular shape will collapse on contact with the box.
and say we have a triangular shape made out of diamond material, and a box out of foam, its obvious the triangular diamond will penetrate the box.
this also has to do with molecule density.
Lixu: “Could you explain us how to make a nice sword trial, good sir?”
All you have to require is:
– Very fast motion of some kind of swing.
– Imagination of onion skin.
First you draw you character swinging nothing. Then you add a sword or any type of object to follow.
You have to keep in mind that it swings very fast, so you can bend the object among its path.
preload -> Ease in -> 1 frame of swinging action -> ease out.
between ease in and 1 frame of swinging action, you can bend the sword a little bit and give it a little bit of trail. how to do this?
imagine where the sword would be before this frame. and draw the blade PLUS where the sword would be the frame before it. its kind of like a blur, but withouth the blur part. kinda hard to explain.
here’s a slow example. as you can see I bent the sword between ease in and 1 frame of swinging action. then I made a trail ON the 1 frame of swing action. this basicly shows what would happen if there were more frames between. We show this by drawing a large blade starting normal and pointing into a sharp end.
just look at te example and you’ll get the point.