问 Three.JS不能更改HDR RGBELoader偏移值。

EN

我有一个对象，当应用正常纹理时，它允许我更改偏移量.y值，但是在使用RGBELoader和HDR文件时，我不能再更改偏移量。

我的代码如下：

                var loader3 = new THREE.ObjectLoader();
            loader3.load("model/dome/dome2.json",function ( obj ) {
                obj.scale.x = 7;
                obj.scale.y = 7;
                obj.scale.z = 7;
                obj.position.x = 0;
                obj.position.z = 0;
                obj.position.y = 0;
                var loader = new THREE.RGBELoader();
                var texture = loader.load( "maps/scene2.hdr", function( texture, textureData ){
                    materialHDR = new THREE.ShaderMaterial( {
                        uniforms: {
                            tDiffuse:  { type: "t", value: texture },
                            exposure:  { type: "f", value: textureData.exposure },
                            brightMax: { type: "f", value: textureData.gamma }
                        vertexShader: getText( 'vs-hdr' ),
                        fragmentShader: getText( 'fs-hdr' )
                    texture.offset.y = 0.5; // HERE LIES THE PROBLEM
                    texture.flipY = true;
                    obj.traverse( function ( child ) {
                        if ( child instanceof THREE.Mesh ) {
                            child.material = materialHDR;
                            child.receiveShadow = true;
                            //child.material.side = THREE.BackSide;
                            child.material.side = THREE.DoubleSide;
                    scene.add( obj );
            });

HDR图像加载得很好，并应用到对象上，就像我使用普通纹理时一样，但是我根本无法在模型周围移动纹理。

我试过用重复包装和各种组合，但顽固的胶印不会工作！

我还想补充一下，我目前正在学习three.js (太棒了！)因此，如果上面的代码有任何其他错误，请原谅。

谢谢你提前提供帮助，这让我发疯了！

下面的阴影代码

        <script id="fs-hdr" type="x-shader/x-fragment">
        uniform sampler2D   tDiffuse;
        uniform float       exposure;
        uniform float       brightMax;
        varying vec2  vUv;
        vec3 decode_pnghdr( const in vec4 color ) {
            vec4 rgbcolor = vec4( 0.0, 0.0, 0.0, 0.0 );
            if ( color.w > 0.0 ) {
                float f = pow(2.0, 127.0*(color.w-0.5));
                rgbcolor.xyz = color.xyz * f;
            return rgbcolor.xyz;
            // remove gamma correction
            vec4 res = color * color;
            // decoded RI
            float ri = pow( 2.0, res.w * 32.0 - 16.0 );
            // decoded HDR pixel
            res.xyz = res.xyz * ri;
            return res.xyz;
        void main() {
            vec4 color = texture2D( tDiffuse, vUv );
            color.xyz  = decode_pnghdr( color );
            // apply gamma correction and exposure
            //gl_FragColor = vec4( pow( exposure * color.xyz, vec3( 0.474 ) ), 1.0 );
            // Perform tone-mapping
            float Y = dot(vec4(0.30, 0.59, 0.11, 0.0), color);
            float YD = exposure * (exposure/brightMax + 1.0) / (exposure + 1.0);
            color *= YD;
            gl_FragColor = vec4( color.xyz, 1.0 );
    </script>
    <!-- HDR vertex shader -->
    <script id="vs-hdr" type="x-shader/x-vertex">
        varying vec2 vUv;
        void main() {
            vUv  = uv;
            gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 3 );
    </script>