function getFloatLength( floatLength ) {

	// ensure chunk size alignment (STD140 layout)

	return floatLength + ( ( GPU_CHUNK_BYTES - ( floatLength % GPU_CHUNK_BYTES ) ) % GPU_CHUNK_BYTES );

}
This function is usually called with the length in bytes of an array buffer.
It returns an padded value which ensure chunk size alignment according to STD140 layout.

@function
@param {number} floatLength - The buffer length.
@return {number} The padded length.