[name]
An object with several math utility functions.
Functions
[method:Float clamp]( [page:Float value], [page:Float min], [page:Float max] )
[page:Float value] — Value to be clamped.
[page:Float min] — Minimum value.
[page:Float max] — Maximum value.
Clamps the [page:Float value] to be between [page:Float min] and [page:Float max].
[method:Float degToRad]( [page:Float degrees] )
Converts degrees to radians.
[method:Integer euclideanModulo]( [page:Integer n], [page:Integer m] )
[page:Integer n], [page:Integer m] - Integers
Compute the Euclidean modulo of m % [page:Integer n], that is:
( ( n % m ) + m ) % m
[method:UUID generateUUID]( )
Generate a [link:https://en.wikipedia.org/wiki/Universally_unique_identifier UUID]
(universally unique identifier).
[method:Boolean isPowerOfTwo]( [page:Number n] )
Return *true* if [page:Number n] is a power of 2.
[method:Float lerp]( [page:Float x], [page:Float y], [page:Float t] )
[page:Float x] - Start point.
[page:Float y] - End point.
[page:Float t] - interpolation factor in the closed interval [0, 1].
Returns a value [link:https://en.wikipedia.org/wiki/Linear_interpolation linearly interpolated]
from two known points based on the given interval - [page:Float t] = 0 will return [page:Float x]
and [page:Float t] = 1 will return [page:Float y].
[method:Float mapLinear](
[page:Float x],
[page:Float a1],
[page:Float a2],
[page:Float b1],
[page:Float b2] )
[page:Float x] — Value to be mapped.
[page:Float a1] — Minimum value for range A.
[page:Float a2] — Maximum value for range A.
[page:Float b1] — Minimum value for range B.
[page:Float b2] — Maximum value for range B.
Linear mapping of [page:Float x] from range [[page:Float a1], [page:Float a2]] to range [[page:Float b1], [page:Float b2]].
[method:Integer nearestPowerOfTwo]( [page:Number n] )
Return the nearest power of 2 to a given number [page:Number n].
[method:Integer nextPowerOfTwo]( [page:Number n] )
Return the nearest power of 2 that is bigger than [page:Number n].
[method:Float radToDeg]( [page:Float radians] )
Converts radians to degrees.
[method:Float randFloat]( [page:Float low], [page:Float high] )
Random float in the interval [page:Float low] to [page:Float high].
[method:Float randFloatSpread]( [page:Float range] )
Random float in the intercal *- [page:Float range] / 2* to *[page:Float range] / 2*.
[method:Integer randInt]( [page:Integer low], [page:Integer high] )
Random integer in the interval [page:Float low] to [page:Float high].
[method:Float smoothstep]( [page:Float x], [page:Float min], [page:Float max] )
[page:Float x] - The value to evaluate based on its position between min and max.
[page:Float min] - Any x value below min will be 0.
[page:Float max] - Any x value above max will be 1.
Returns a value between 0-1 that represents the percentage that x has moved between min and max,
but smoothed or slowed down the closer X is to the min and max.
See [link:http://en.wikipedia.org/wiki/Smoothstep Smoothstep] for details.
[method:Float smootherstep]( [page:Float x], [page:Float min], [page:Float max] )
[page:Float x] - The value to evaluate based on its position between min and max.
[page:Float min] - Any x value below min will be 0.
[page:Float max] - Any x value above max will be 1.
Returns a value between 0-1. A [link:https://en.wikipedia.org/wiki/Smoothstep#Variations variation on smoothstep]
that has zero 1st and 2nd order derivatives at x=0 and x=1.
Source
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]