threejs 透明贴图的方法

threejs 透明贴图的方法

    function init() {
        //设置渲染窗口的大小
        var canvaswidth=window.innerWidth;
        var canvasheight=window.innerHeight;

        renderer = new THREE.WebGLRenderer({ alpha: true });
        renderer.setSize(canvaswidth, canvasheight);
        document.body.appendChild(renderer.domElement);
        //
        camera = new THREE.PerspectiveCamera(70, canvaswidth / canvasheight, 1, 1000);
        camera.position.z = 500;
        scene = new THREE.Scene();

        var geometry = new THREE.PlaneGeometry(100, 100, 1, 1);
        // A begin
        geometry.vertices[0].uv = new THREE.Vector2(0, 0);
        geometry.vertices[1].uv = new THREE.Vector2(1, 0);
        geometry.vertices[2].uv = new THREE.Vector2(1, 1);
        geometry.vertices[3].uv = new THREE.Vector2(0, 1);

        // A end
        // B begin
        // 纹理坐标怎么弄
        var texture1 = THREE.ImageUtils.loadTexture("/moban/images/tietu.png", null, function(t) {});
        var material = new THREE.MeshBasicMaterial({ map: texture1,transparent: true,side:THREE.DoubleSide });
        mesh = new THREE.Mesh(geometry, material);
        mesh.position.z = 0;
        mesh.position.x = 0;
        mesh.position.y = 0;
        mesh.rotation.x = 0;
        mesh.rotation.y = 0;
        mesh.rotation.z = 0;
        
     
        scene.add(mesh);
         //用于自适应
        window.addEventListener('resize', onWindowResize, false);


       var tm = new TimelineMax();
    
      // tm.to(camera.position, 3, {z:100,delay:0,repeat: 2, yoyo: true,ease: Linear.easeNone});//
      // tm.to(camera.rotation, 13, {z:100,delay:0,repeat: 2, yoyo: true,ease: Linear.easeNone});//

    }

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

      var material = new THREE.MeshBasicMaterial({ map: texture1,transparent: true,side:THREE.DoubleSide });

1个画布支持透明 1个是贴图支持