number-util

The following methods are exported:

- intBitsToFloat
- Returns a float for the given int bits.
- floatToIntBits
- Returns int bits for the given float.
- intToFloatColor
- Returns a single float representing the
given ABGR integer. Some precision is lost.
- colorToFloat
- Returns a single float representing the
given R, G, B, and A bytes (0 - 255). Some precision is lost.
- isPowerOfTwo
- Returns true if the number is a power-of-two size
- nextPowerOfTwo
- Returns the next highest power-of-two size from the given number

example

``javascript
var util = require('number-util');

//packs the RGBA color red into a single float
var color = util.colorToFloat(255, 0, 0, 255);
``

use

In WebGL, it's often desirable to pack RGBA data into a single float to reduce buffer upload bandwidth, at the expense of some precision loss.

how

Typed arrays are used to perform the casting.