*/
public static void enableLightningAndAmbient(PApplet pa, float ambientR, float ambientG, float anbientB, float ambientA){
GL gl = ((PGraphicsOpenGL)pa.g).gl;
//ENABLE LIGHTNING
gl.glEnable(GL.GL_LIGHTING);
//Set default ambient lightning for all objs
ToolsLight.setAmbientLight(gl, new float[]{ambientR/255, ambientG/255, anbientB/255, ambientA/255});
//This means that glMaterial will control the polygon's specular and emission colours