Three.js透明度模型纹理臭虫

Question

我已经搜索了所有互联网并尝试了很多方法,但没有结果..如何删除纹理透明度错误？检查图像

所以,在3dsmax模型上看起来很好.我已经使用python脚本从.obj转换为.js格式.png文件是透明的(.obj不透明).

如何解决我的问题？谢谢

var loader = new THREE.JSONLoader();
loader.load('tree_model.js', function(geometry, materials) {
    var material = new THREE.MeshFaceMaterial(materials);
    var object = new THREE.Mesh(geometry, material);
    object.traverse( function ( child ) {
            if ( child.material instanceof THREE.MeshPhongMaterial ) {

                // this code is unattainable, but anyway without if (..) it does not work

                child.material.alphaTest = 0.5;
                child.material.depthWrite = false;
                child.material.depthTest = false;
                child.material.side = THREE.BackSide;
                child.material.transparent = true;
            }
        });
        scene.add(object);
    });
});

和渲染器:

renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true, premultipliedAlpha: true });

Answer 1

你必须设置alphaTest你的材料.另外设置叶子和分支以THREE.DoubleSide确保它们从另一侧观察时不会消失.

您发布的代码包含各种错误,因此请将其替换为:

var loader = new THREE.JSONLoader();
loader.load('model/Elka.js', function(geometry, materials) {

    for( var i = 0; i < materials.length; i ++ ) {
        var material = materials[ i ];
        material.alphaTest = 0.5;
        material.side = THREE.DoubleSide;
        // not-so-good practice
        if ( material.name === "NorwaySpruceBark" ) {
            material.transparent = false;
        }
    }

    var material = new THREE.MeshFaceMaterial(materials);
    var object = new THREE.Mesh(geometry, material);
    scene.add(object);
});

要进一步减少透明度伪影,请将树干设置为不透明.您的模型应包含正确的材料设置,因此这是一种不好的做法.

编辑:设置alpha和premultipliedAlpha在renderer没有必要这个问题.

结果: