fix: 一个模型包含多个3dtiles的情况

public/lib/potree/potree.js

@@ -135673,9 +135673,14 @@ ENDSEC
 	function getGpuMemoryUsage(win = window){//总的
 	    let c = 0;
 	    viewer.objs.children.filter(e=>{
-	        if(e.fileType == '3dTiles'){
-	            let tileset3D = e.runtime.getTileset();
-	            c += tileset3D.gpuMemoryUsageInBytes;
+	        if(e.fileType == '3dTiles'){ 
+	           e.traverse(child=>{
+	                if(child.runtime){
+	                    let tileset3D = child.runtime.getTileset();
+	                    c += tileset3D.gpuMemoryUsageInBytes;
+	                    return {stopContinue:true} 
+	                }
+	            }); 
 	        }
 	    });
 	    
@@ -163864,11 +163869,17 @@ ENDSEC
 			this.update(deltaTime, timestamp);
 	        this.magnifier.render();
 	        this.render(); 
-	         
+	          
 	        
 	        this.objs.children.forEach(e=>{
 	            if(e.fileType == '3dTiles'){
-	                e.runtime.update(deltaTime, this.renderer, this.mainViewport.camera);
+	                e.traverse(child=>{
+	                    if(child.runtime){
+	                        child.runtime.update(deltaTime, this.renderer, this.mainViewport.camera);
+	                        return {stopContinue:true}
+	                    }
+	                });
+	                
 	            }
 	        }); 
 	         
@@ -164176,55 +164187,71 @@ ENDSEC
 	          
 	           
 	        if(fileInfo_.fileType == '3dTiles'){
-	            let tileset = object.runtime.getTileset();
-	           
-	            //TileHeader: tileset.root 
-	            //参见另一个工程 TileRenderer.js  preprocessNode //这个坐标位置几万…… let data = boundingVolume.halfAxes  //但这个似乎是premultiply( transform );过后的，可能需还原下
+	            let children = object.runtime ? [object] : object.children;
 	            
-	            let json = tileset.tileset;   
-	            let box = json.root.boundingVolume.box;
-	             
-	            if(box){
-	                let center = new Vector3(box[0],box[1],box[2]);
-	                let boundSize = new Vector3( );  
-	                 
-	                // get the extents of the bounds in each axis
-	                let vecX = new Vector3( box[ 3 ], box[ 4 ], box[ 5 ] );
-	                let vecY = new Vector3( box[ 6 ], box[ 7 ], box[ 8 ] );
-	                let vecZ = new Vector3( box[ 9 ], box[ 10 ], box[ 11 ] );
-
-	                const scaleX = vecX.length();
-	                const scaleY = vecY.length();
-	                const scaleZ = vecZ.length();
-	                /* boundingBox.expandByPoint(center);
-	                boundingBox.expandByVector(new THREE.Vector3(scaleX,scaleY,scaleZ)) */
-	                 
+	            
+	            children.forEach(object =>{
+	                let boundingBox_ = new Box3();
+	                
 	                
-	                boundingBox.min.set( - scaleX, - scaleY, - scaleZ );
-	                boundingBox.max.set( scaleX, scaleY, scaleZ );
+	                let tileset = object.runtime.getTileset();
+	           
+	                //TileHeader: tileset.root 
+	                //参见另一个工程 TileRenderer.js  preprocessNode //这个坐标位置几万…… let data = boundingVolume.halfAxes  //但这个似乎是premultiply( transform );过后的，可能需还原下
 	                
-	            }else if(json.root.boundingVolume.sphere){
-	                let sphereData = json.root.boundingVolume.sphere;
-	                let center = new Vector3(...sphereData);
-	                let radius = sphereData[3] / 2;
-	                /* let sphere = new THREE.Sphere(center, radius) 
-	                let box = sphere.getBoundingBox()
-	                boundingBox.copy(box) */
+	                let json = tileset.tileset;   
+	                let box = json.root.boundingVolume.box;
 	                 
-	                boundingBox.min.set( - radius, - radius, - radius );
-	                boundingBox.max.set( radius, radius, radius );
+	                if(box){
+	                    let center = new Vector3(box[0],box[1],box[2]);
+	                    let boundSize = new Vector3( );  
+	                     
+	                    // get the extents of the bounds in each axis
+	                    let vecX = new Vector3( box[ 3 ], box[ 4 ], box[ 5 ] );
+	                    let vecY = new Vector3( box[ 6 ], box[ 7 ], box[ 8 ] );
+	                    let vecZ = new Vector3( box[ 9 ], box[ 10 ], box[ 11 ] );
+
+	                    const scaleX = vecX.length();
+	                    const scaleY = vecY.length();
+	                    const scaleZ = vecZ.length();
+	                    /* boundingBox.expandByPoint(center);
+	                    boundingBox.expandByVector(new THREE.Vector3(scaleX,scaleY,scaleZ)) */
+	                     
+	                    
+	                    boundingBox_.min.set( - scaleX, - scaleY, - scaleZ );
+	                    boundingBox_.max.set( scaleX, scaleY, scaleZ );
+	                    
+	                }else if(json.root.boundingVolume.sphere){
+	                    let sphereData = json.root.boundingVolume.sphere;
+	                    let center = new Vector3(...sphereData);
+	                    let radius = sphereData[3] / 2;
+	                    /* let sphere = new THREE.Sphere(center, radius) 
+	                    let box = sphere.getBoundingBox()
+	                    boundingBox.copy(box) */
+	                     
+	                    boundingBox_.min.set( - radius, - radius, - radius );
+	                    boundingBox_.max.set( radius, radius, radius );
+	                    
+	                    
+	                    
+	                }else {
+	                    return console.error('json boundingVolume 缺少信息') 
+	                }
 	                
+	                //中心点居然没用。可能是漏用了什么信息，也许这和LVBADUI_qp是散的有关。
+	                console.log('3d tiles json',json);
 	                
+	                json.root.refine = 'ADD';
+	                json.refine = 'ADD';
+	                    
 	                
-	            }else {
-	                return console.error('json boundingVolume 缺少信息') 
-	            }
+	                boundingBox.union(boundingBox_);
+	                
+	            });
+	            
+	            
 	            
-	            //中心点居然没用。可能是漏用了什么信息，也许这和LVBADUI_qp是散的有关。
-	            console.log('3d tiles json',json);
 	            
-	            json.root.refine = 'ADD';
-	            json.refine = 'ADD';
 	        }else { 
 	            Potree.Utils.setObjectLayers(object, Potree.settings.showObjectsOnMap ? 'bothMapAndScene' : 'model');  
 	            
@@ -164411,7 +164438,7 @@ ENDSEC
 	                }
 	            });
 	            tileset.addEventListener('tileLoaded',(e)=>{ //每一个tile加载完要更改透明度
-	                let opacity = result.model.opacity;
+	                let opacity = result.model.parent ? result.model.parent.opacity : result.model.opacity; //最多两层
 	                MergeEditor.changeOpacity(e.tileContent,opacity);
 	                //set Layers ?
 	            });