gl-sprite-batch/pack-rgba-float.js

a high level quad batcher for stackgl

var packColor = require('number-util').colorToFloat

module.exports = function colorToFloat(rgba) {
    return packColor(
        ~~(rgba[0] * 255),
        ~~(rgba[1] * 255),
        ~~(rgba[2] * 255),
        ~~(rgba[3] * 255)
    )
}