src/colorEffects.js
function applyToPixel(pixel, effect, result) {
  vec4TransformMat4Transposed(result, pixel, effect.colorMatrix);
  vec4.add(result, result, effect.colorOffset);
}
function applyToPixel(pixel, effect, result) {
  vec4TransformMat4Transposed(result, pixel, effect.colorMatrix);
  vec4.add(result, result, effect.colorOffset);
}
function applyToPixel ( pixel , effect , result ) { vec4TransformMat4Transposed ( result , pixel , effect . colorMatrix ) ; vec4 . add ( result , result , effect . colorOffset ) ; }
Apply color effects to a single pixel

@param {vec4} pixel Values in range [0,1]
@param {Object} effect
@param {vec4} effect.colorOffset
@param {mat4} effect.colorMatrix
@param {vec4} result Object to store result

@memberof colorEffects
Apply color effects to a single pixel