2 * x * x : 1 - Math.pow(-2 * x + 2, 2) / 2; 缓动函数图 缓动方式 Sine:正弦曲线;quad:二次方;Cubic:三次方;Quart:四次方;Quint:五次方;Expo:指数曲线;Circ:圆形曲线;Back:超过范围的三次方;Elastic:指数衰减的正弦曲线;Bounce:指数衰减的反弹。 参考资料 Easing Func
functioneaseInSine(t, b, c, d){ return-c *Math.cos(t / d * (Math.PI/2)) + c + b; } Sinusoidal easing out functioneaseOutSine(t, b, c, d){ returnc *Math.sin(t / d * (Math.PI/2)) + b; } Sinusoidal easing in and out functioneaseInOutSine(t, b, c, d){ return...
Easing functions allow you to apply custom mathematical formulas to your animations. For example, you may want an object to realistically bounce or behave as though it were on a spring. You could use Key-Frame or even From/To/By animations to approximate these effects but it would take a ...
function easeInSine (t, b, c, d) { return -c * Math.cos(t / d * (Math.PI / 2)) + c + b; } 1. 2. 3. Sinusoidal easing out function easeOutSine (t, b, c, d) { return c * Math.sin(t / d * (Math.PI / 2)) + b; } 1. 2. 3. Sinusoidal easing in and out...
Alternatively to Curves, you can animate using math instead. The most common way to animate this way is with easing functions. This provides an even easier way to set up simple animations as you don’t even need to create or assign a curve asset in the editor. Check out this excellent...
nim easing-functions math mathematics nim-lang robert-penner Updated Nov 4, 2019 C leiradel / luamods Star 2 Code Issues Pull requests Collection of small Lua modules lua easing-functions tweening zip z80-emulator lua-modules image-writer Updated Nov 29, 2020 C octaspire / easing...
在动画的上下文中,什么是缓动函数?似乎Dojo、jQuery、Silverlight、Flex和其他 UI 系统都有缓动函数的概念。我找不到一个好的缓动函数解释?有人能够解释一下缓动函数的概念或指出一个好的解释吗?我对概念感兴趣,而不是特定框架的具体细节。 缓动是否只用于位置,还是普遍适用于对象的任何属性? - ams5...
if(Math.abs(currentPos) >= 900) { currentPos = -500; } requestAnimationFrame(moveThing); } moveThing(); Most of the code you see here will remain unchanged as part of working with easing functions. The only things that will change are the lines in your animation loop that I've hig...
This library has had the elastic easing functions removed as they relied on asin and acos, which are not available within the PICO-8. My math skills do not extend far enough for me to implement a solution for them that doesn't rely on those functions. ...
In JavaScript, the way you summon these mythical trigonometric creatures is via the appropriately named Math.cos and Math.sin functions. Just like their mathematical counterparts, they each take a number (aka the angle value) as their argument and output the result of what that number means in...