如何去除在Globe上绘制bar3D的悬浮感echarts bar3D配置项内容和展示

bar3D和球体之间有道不可跨越的鸿沟

      /**
 * globe上绘制bar3d，近看会有悬浮感，如何去除？
 */
const uploadedDataURL = "/asset/get/s/data-1517645039291-B1vgpymUz.json"; // http://gallery.echartsjs.com/editor.html?c=xB1COCy7UM
const canvas = document.createElement('canvas');
const baseChart = echarts.init(canvas, null, {
    width: 4096, height: 2048
});

$.getJSON(uploadedDataURL, function(geoJson) {
    echarts.registerMap('cn', geoJson);
    
    baseChart.setOption({
        geo : {
            map: 'cn',
            top: 0,
            left: 0,
            right: 0,
            bottom: 0,
            boundingCoords: [[-180, 90], [180, -90]],
            itemStyle: {
                areaColor: '#666',
            },
        },
    });
    
    const regions = baseChart.getModel().getComponent('geo').coordinateSystem.regions;
    const data = regions.map(each => {
        return {
            name: each.name,
            value: each.center.concat(Math.random()),
        };
    });
    
    option = {
        globe: {
            baseTexture: baseChart,
            globeOuterRadius: 110, // 控制bar高度
            shading: 'realistic',
            realisticMaterial: {
                roughness: 0.8,
                metalness: 0
            },
            light: {
                main: {
                    intensity: 2,
                    shadow: true,
                },
                ambient: {
                    intensity: 0.4,
                },
            },
            postEffect: {
                enable: true,
                bloom: {
                    enable: true,
                    bloomIntensity: 0.5,
                },
            },
            viewControl: {
                // targetCoord: [111, 31],
                center: [0, 80, 0],
                distance: 50,
                autoRotate: false,
                alpha: -18,
                beta: 195,
            }
        },
        series: [{
            type: 'bar3D',
            coordinateSystem: 'globe',
            bevelSize: 0.4,
            bevelSmoothness: 4,
            barSize: 1,
            minHeight: 1,
            shading: 'realistic',
            itemStyle: {
                color: 'orange',
            },
            label: {
                show: true,
                formatter: '{b}',
                distance: 0,
            },
            data,
        }]
    };
    
    myChart.setOption(option); // 需要手动设置一次
});