The invention relates to a video image encoding method for distributing a bit rate to a target macroblock in a digital image while performing video image encoding. The different layers consist of a compound with the formula AlxlnyGaN, wherein x is more than 0 and less than or equal to 1, y is from 0 to 1 and x+y is greater than 0 and less than or equal to 1. The second process gas is then rapidly introduced from the accumulator into the processing chamber. The material may be used to augment soft tissue in a variety of areas, including the facial region and vocal folds. Quantities of fuel injected during each of the three fuel injection events are substantially equal.