false;

					updateAll();

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

				params.Campfire = function () {

					params.color1 = 0xffffff;
					params.color2 = 0xffa000;
					params.color3 = 0x000000;
					params.windX = 0.0;
					params.windY = 0.75;
					params.colorBias = 0.8;
					params.burnRate = 0.3;
					params.diffuse = 1.33;
					params.viscosity = 0.25;
					params.expansion = - 0.25;
					params.swirl = 50.0;
					params.drag = 0.35;
					params.airSpeed = 12.0;
					params.speed = 500.0;
					param