怎么使地球和贴图半透明？希望能回答，弄了好久了，谢谢echarts lines3D配置项内容和展示

怎么使地球和贴图半透明？希望能回答，弄了好久了，谢谢

      chart.setOption({
			backgroundColor : 'rgba(0,0,1,0.9)',
			globe : {
				//backgroundColor : 'rgba(0,0,0,0.2)',
				baseTexture : 'imgs/world_4.jpg',
				//heightTexture: 'imgs/bathymetry_bw_composite_4k.jpg',

				// 	        baseTexture: 'imgs/world_4.jpg',
				shading : 'lambert',
				environment : "rgba(1,0,0,0.2)",
				light : {
					ambient : {
						intensity : 0.4
					},
					main : {
						intensity : 0.4
					}
				},
				viewControl : {
					distance : 200,
					targetCoord : [ 108.9, 18.7 ],
					autoRotate : false
				}
			},
			series : [ {
				type : 'lines3D',

				effect : {
					show : true,
					period : 3,
					//constantSpeed: 50,
					trailWidth : 3,
					trailLength : 0.15,
					trailOpacity : 1,
					trailColor : 'rgb(30, 30, 60)'
				},

				lineStyle : {
					width : 2,
					color : 'rgb(50, 50, 150)',
					//color: 'rgb(118, 233, 241)',
					opacity : 1
				},
				blendMode : 'lighter',

				data : [ [ [ -34, 43 ], [ 108.8, 31.2 ] ], [ [ 64.2, 43 ], [ 108.8, 31.2 ] ] ]
			}, {
				type : 'scatter3D',
				coordinateSystem : 'globe',
				blendMode : 'lighter',
				symbolSize : 15,
				itemStyle : {
					borderWidth : 1,
					borderColor : 'rgb(50, 50, 150)',
					color : 'rgb(50, 50, 150)',
					opacity : 0
				},
				data : [ [ -34, 43, 'D001' ], [ 64.2, 43, 'D002' ], [ 108.8, 31.2, 'D003' ] ]
			} ]
		});