Question

我已经通过ColladaLoader成功导入了.dae场景。

问题是，我需要在几个.dae文件之间切换。

我似乎无法正确实施dispose方法。

        dae.traverse(function(obj) {

            console.log('unloading ' + obj.id);

            scene.remove(obj);

            if(obj.geometry)
                obj.geometry.dispose();
            if(obj.material)
                obj.material.dispose();
            if(obj.mesh)
                obj.mesh.dispose();
            if(obj.texture)
                obj.texture.dispose();

        });

        scene.remove(dae);

我可能做错了什么？

提前非常感谢！

编辑：

这是整个代码。

    var renderer = null;
    var scene = null;
    var camera = null;
    var controls = null;
    var dae = null;
    //var loader = null;

    function init() {


        renderer = new THREE.WebGLRenderer( { alpha: 1, antialias: true, clearColor: 0xffffff } );
        renderer.setSize( 800, 600 );

        var elem = $('.main3d')[0];
        elem.appendChild( renderer.domElement );

        scene = new THREE.Scene();

        camera = new THREE.PerspectiveCamera( 20, 800/600, 1, 1000 );
        camera.position.set( 0, -100, 50 );
        //camera.lookAt( scene.position );
        controls = new THREE.TrackballControls( camera, renderer.domElement );

        var light = new THREE.AmbientLight( 0xffffff ); // soft white light
        scene.add( light );

        threeAnimate();


    }

    function load(url) {
        loader = new THREE.ColladaLoader();

            loader.load(url, function (collada) {
                dae = collada.scene;
                scene.add(dae);

            });

    }

    function unload() {

        dae.traverse(function(obj) {

            console.log('unloading ' + obj.id);

            scene.remove(obj);

            if(obj.geometry)
                obj.geometry.dispose();
            if(obj.material)
                obj.material.dispose();
            if(obj.mesh)
                obj.mesh.dispose();
            if(obj.texture)
                obj.texture.dispose();

        });

        scene.remove(dae);

    }

    var animFrame = null;
    function animate()  {

        animFrame = requestAnimationFrame( threeAnimate );
        renderer.render( scene, camera );
        controls.update();

    }

Answer 1

这应该做的工作：

function disposeNode (node)
{
    if (node instanceof THREE.Mesh)
    {
        if (node.geometry)
        {
            node.geometry.dispose ();
        }

        if (node.material)
        {
            if (node.material instanceof THREE.MeshFaceMaterial)
            {
                $.each (node.material.materials, function (idx, mtrl)
                {
                    if (mtrl.map)           mtrl.map.dispose ();
                    if (mtrl.lightMap)      mtrl.lightMap.dispose ();
                    if (mtrl.bumpMap)       mtrl.bumpMap.dispose ();
                    if (mtrl.normalMap)     mtrl.normalMap.dispose ();
                    if (mtrl.specularMap)   mtrl.specularMap.dispose ();
                    if (mtrl.envMap)        mtrl.envMap.dispose ();

                    mtrl.dispose ();    // disposes any programs associated with the material
                });
            }
            else
            {
                if (node.material.map)          node.material.map.dispose ();
                if (node.material.lightMap)     node.material.lightMap.dispose ();
                if (node.material.bumpMap)      node.material.bumpMap.dispose ();
                if (node.material.normalMap)    node.material.normalMap.dispose ();
                if (node.material.specularMap)  node.material.specularMap.dispose ();
                if (node.material.envMap)       node.material.envMap.dispose ();

                node.material.dispose ();   // disposes any programs associated with the material
            }
        }
    }
}   // disposeNode

function disposeHierarchy (node, callback)
{
    for (var i = node.children.length - 1; i >= 0; i--)
    {
        var child = node.children[i];
        disposeHierarchy (child, callback);
        callback (child);
    }
}

你用它

disposeHierarchy (YOUR_OBJECT3D, disposeNode);

Answer 2

我调整了gaitat已经很棒的答案，只使用现在内置的场景遍历功能，删除$并处理MultiMaterial。为什么，为什么在THREE中没有内置的内存清理!!当你做scene.dispose（）时，它肯定应该这样做。我仍然试图追踪我正在使用的更多纹理，但似乎没有根据renderer.info.memory.textures

进行dispose（）编辑

this.disposeNode = function (parentObject) {

    parentObject.traverse(function (node) {
        if (node instanceof THREE.Mesh) {
            if (node.geometry) {
                node.geometry.dispose();
            }

            if (node.material) {

                if (node.material instanceof THREE.MeshFaceMaterial || node.material instanceof THREE.MultiMaterial) {
                    node.material.materials.forEach(function (mtrl, idx) {
                        if (mtrl.map) mtrl.map.dispose();
                        if (mtrl.lightMap) mtrl.lightMap.dispose();
                        if (mtrl.bumpMap) mtrl.bumpMap.dispose();
                        if (mtrl.normalMap) mtrl.normalMap.dispose();
                        if (mtrl.specularMap) mtrl.specularMap.dispose();
                        if (mtrl.envMap) mtrl.envMap.dispose();

                        mtrl.dispose();    // disposes any programs associated with the material
                    });
                }
                else {
                    if (node.material.map) node.material.map.dispose();
                    if (node.material.lightMap) node.material.lightMap.dispose();
                    if (node.material.bumpMap) node.material.bumpMap.dispose();
                    if (node.material.normalMap) node.material.normalMap.dispose();
                    if (node.material.specularMap) node.material.specularMap.dispose();
                    if (node.material.envMap) node.material.envMap.dispose();

                    node.material.dispose();   // disposes any programs associated with the material
                }
            }
        }
    });
}

Answer 3

在此处构建答案，此代码处理材料数组。

function disposeNode(parentObject) {
    parentObject.traverse(function (node) {
        if (node instanceof THREE.Mesh) {
            if (node.geometry) {
                node.geometry.dispose();
            }
            if (node.material) {
                var materialArray;
                if (node.material instanceof THREE.MeshFaceMaterial || node.material instanceof THREE.MultiMaterial) {
                    materialArray = node.material.materials;
                }
                else if(node.material instanceof Array) {
                    materialArray = node.material;
                }
                if(materialArray) {
                    materialArray.forEach(function (mtrl, idx) {
                        if (mtrl.map) mtrl.map.dispose();
                        if (mtrl.lightMap) mtrl.lightMap.dispose();
                        if (mtrl.bumpMap) mtrl.bumpMap.dispose();
                        if (mtrl.normalMap) mtrl.normalMap.dispose();
                        if (mtrl.specularMap) mtrl.specularMap.dispose();
                        if (mtrl.envMap) mtrl.envMap.dispose();
                        mtrl.dispose();
                    });
                }
                else {
                    if (node.material.map) node.material.map.dispose();
                    if (node.material.lightMap) node.material.lightMap.dispose();
                    if (node.material.bumpMap) node.material.bumpMap.dispose();
                    if (node.material.normalMap) node.material.normalMap.dispose();
                    if (node.material.specularMap) node.material.specularMap.dispose();
                    if (node.material.envMap) node.material.envMap.dispose();
                    node.material.dispose();
                }
            }
        }
    });
}

Three.js Collada - 处理（）和释放内存（垃圾收集）的正确方法是什么？

3 个答案: