500.0;
					params.massConservation = false;

					updateAll();

				};
				gui.add( params, 'Fireball' );

				params.Iceball = function () {

					params.color1 = 0x00bdf7;
					params.color2 = 0x1b3fb6;
					params.color3 = 0x001869;
					params.windX = 0.0;
					params.windY = - 0.25;
					params.colorBias = 0.25;
					params.burnRate = 2.6;
					params.diffuse = 5.0;
					params.viscosity = 0.5;
					params.expansion = 0.75;
					params.swirl = 30.0;
					params.drag = 0.0;
					params.airSpeed = 40.0;