Three.js 改变材质上的纹理

我正在 Three.js 中的网格上设置纹理，当它加载时，它看起来也是我想要的样子：

        texture = THREE.ImageUtils.loadTexture("textures/hash.png");

        texture.needsUpdate = true;

        uniforms = {
            color: { type: "c", value: new THREE.Color( 0xffffff ) },
            texture: { type: "t", value: texture },
        },  

        vertexShader = "varying vec2 vUv; void main() {vUv = uv;gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );}",

        fragmentShader = "uniform vec3 color; uniform sampler2D texture; varying vec2 vUv; void main() { vec4 tColor = texture2D( texture, vUv ); gl_FragColor = vec4( mix( color, tColor.rgb, tColor.a ), 1.0 );}",

        material = new THREE.ShaderMaterial({
            uniforms : uniforms,
            vertexShader    : vertexShader,
            fragmentShader  : fragmentShader
        });

但我想稍后更改此网格上的纹理，我尝试过以下操作：

obj.mesh.material.uniforms.texture = THREE.ImageUtils.loadTexture("textures/1.png");
obj.mesh.material.uniforms.texture.needsUpdate = true;

但这不会改变网格上显示的纹理，如何更改 THREE.ShaderMaterial 上的纹理？

将纹理指定给obj.mesh.material.uniforms.texture.value反而。还可以考虑设置needsUpdate纹理成功加载后的标志（通过订阅加载事件）。