color1.set( value );

				}

				function updateColor2( value ) {

					fire.color2.set( value );

				}

				function updateColor3( value ) {

					fire.color3.set( value );

				}

				function updateColorBias( value ) {

					fire.colorBias = value;

				}

				function updateBurnRate( value ) {

					fire.burnRate = value;

				}

				function updateDiffuse( value ) {

					fire.diffuse = value;

				}

				function updateViscosity( value ) {

					fire.viscosity = value;

				}

				function updateExpa