public CLRenderManager(JFrame parent) {
super("Render Manager");
view = new Chunk3DView(this, parent);
bufferWidth = 400;
bufferHeight = 400;
globalWorkSize = new long[] { bufferWidth, bufferHeight };
localWorkSize = new long[] { 16, 16 };
workItems = (int) (globalWorkSize[0] * globalWorkSize[1]);