stability-badges)

Robert Penner's easing functions in GLSL,
available as a module for glslify.

I tried as best I could to make them speedy for GLSL, but I'm sure there are a
lot of gaps to fill – pull requests welcome!

Usage

![NPM](https://nodei.co/npm/glsl-easings/)

Each easing function has its own file which can be required from glslify:

``glsl #pragma glslify: ease = require(glsl-easings/back-in-out) #pragma glslify: ease = require(glsl-easings/back-in) #pragma glslify: ease = require(glsl-easings/back-out) #pragma glslify: ease = require(glsl-easings/bounce-in-out) #pragma glslify: ease = require(glsl-easings/bounce-in) #pragma glslify: ease = require(glsl-easings/bounce-out) #pragma glslify: ease = require(glsl-easings/circular-in-out) #pragma glslify: ease = require(glsl-easings/circular-in) #pragma glslify: ease = require(glsl-easings/circular-out) #pragma glslify: ease = require(glsl-easings/cubic-in-out) #pragma glslify: ease = require(glsl-easings/cubic-in) #pragma glslify: ease = require(glsl-easings/cubic-out) #pragma glslify: ease = require(glsl-easings/elastic-in-out) #pragma glslify: ease = require(glsl-easings/elastic-in) #pragma glslify: ease = require(glsl-easings/elastic-out) #pragma glslify: ease = require(glsl-easings/exponential-in-out) #pragma glslify: ease = require(glsl-easings/exponential-in) #pragma glslify: ease = require(glsl-easings/exponential-out) #pragma glslify: ease = require(glsl-easings/linear) #pragma glslify: ease = require(glsl-easings/quadratic-in-out) #pragma glslify: ease = require(glsl-easings/quadratic-in) #pragma glslify: ease = require(glsl-easings/quadratic-out) #pragma glslify: ease = require(glsl-easings/quartic-in-out) #pragma glslify: ease = require(glsl-easings/quartic-in) #pragma glslify: ease = require(glsl-easings/quartic-out) #pragma glslify: ease = require(glsl-easings/quintic-in-out) #pragma glslify: ease = require(glsl-easings/quintic-in) #pragma glslify: ease = require(glsl-easings/quintic-out) #pragma glslify: ease = require(glsl-easings/sine-in-out) #pragma glslify: ease = require(glsl-easings/sine-in) #pragma glslify: ease = require(glsl-easings/sine-out)`

And each function has the following signature:

`glsl float ease(float t)`

Where t` is a value between 0 and 1, returning a new float between 0 and 1.

License

MIT. See LICENSE.md for details.

Usage

![NPM](https://nodei.co/npm/glsl-easings/)

Each easing function has its own file which can be required from glslify:

 glsl
#pragma glslify: ease = require(glsl-easings/back-in-out)
#pragma glslify: ease = require(glsl-easings/back-in)
#pragma glslify: ease = require(glsl-easings/back-out)
#pragma glslify: ease = require(glsl-easings/bounce-in-out)
#pragma glslify: ease = require(glsl-easings/bounce-in)
#pragma glslify: ease = require(glsl-easings/bounce-out)
#pragma glslify: ease = require(glsl-easings/circular-in-out)
#pragma glslify: ease = require(glsl-easings/circular-in)
#pragma glslify: ease = require(glsl-easings/circular-out)
#pragma glslify: ease = require(glsl-easings/cubic-in-out)
#pragma glslify: ease = require(glsl-easings/cubic-in)
#pragma glslify: ease = require(glsl-easings/cubic-out)
#pragma glslify: ease = require(glsl-easings/elastic-in-out)
#pragma glslify: ease = require(glsl-easings/elastic-in)
#pragma glslify: ease = require(glsl-easings/elastic-out)
#pragma glslify: ease = require(glsl-easings/exponential-in-out)
#pragma glslify: ease = require(glsl-easings/exponential-in)
#pragma glslify: ease = require(glsl-easings/exponential-out)
#pragma glslify: ease = require(glsl-easings/linear)
#pragma glslify: ease = require(glsl-easings/quadratic-in-out)
#pragma glslify: ease = require(glsl-easings/quadratic-in)
#pragma glslify: ease = require(glsl-easings/quadratic-out)
#pragma glslify: ease = require(glsl-easings/quartic-in-out)
#pragma glslify: ease = require(glsl-easings/quartic-in)
#pragma glslify: ease = require(glsl-easings/quartic-out)
#pragma glslify: ease = require(glsl-easings/quintic-in-out)
#pragma glslify: ease = require(glsl-easings/quintic-in)
#pragma glslify: ease = require(glsl-easings/quintic-out)
#pragma glslify: ease = require(glsl-easings/sine-in-out)
#pragma glslify: ease = require(glsl-easings/sine-in)
#pragma glslify: ease = require(glsl-easings/sine-out)

And each function has the following signature:

 glsl
float ease(float t)

Where t` is a value between 0 and 1, returning a new float between 0 and 1.