webGL中使用S3MTilesLayer.addExcavationRegion({ name: "excavation", height: 20, position: positions, transparent: false })实现开挖功能,正常应该是挖掉绘制面内部区域,结果现在的效果是挖掉了绘制面外面的区域,却保留了内部,这是什么原因?
layer.addExcavationRegion({
name: "excavation",
height: 20,
position: positions,
transparent: false
});

