[threejs] obj 转化为 gltf 后加载出来的模型变黑了 - V2EX
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maplesog

[threejs] obj 转化为 gltf 后加载出来的模型变黑了

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  •   maplesog Nov 1, 2017 7616 views
    This topic created in 3099 days ago, the information mentioned may be changed or developed.

    obj 加载出来的亮度比较正常。然后把 obj 转化为 gltf 后,用 GLTFLoader 加载转化后的 gltf 问价,渲染出来的模型变黑了好多,哪位大知道是什么原因?

    5 replies    2017-11-01 20:09:41 +08:00
    duan602728596
        1
    duan602728596  
       Nov 1, 2017 via iPhone
    不清楚......估计要么是光源变了,要么是材质变了
    maplesog
        2
    maplesog  
    OP
       Nov 1, 2017
    @duan602728596 这个概率很小吧,毕竟没有人为设置。
    puppychen
        3
    puppychen  
       Nov 1, 2017
    看看是不是转换过程中丢失了模型贴图,涉及到名称的都换成英文试试
    duan602728596
        4
    duan602728596  
       Nov 1, 2017 via iPhone
    @maplesog 也有可能是 loader 的原因
    YyYyYyy
        5
    YyYyYyy  
       Nov 1, 2017
    1. 检查法线方向反了没
    2. 检查 Texture,Material 是否正确加载
    3. (假定 fragment shader 内用了顶点色,那么)如果本无顶点色,检查是不是多了顶点色。如有用顶点色,检查顶点色变了没

    话说渲染问题最好贴个前后对比图,要不然你用没用 Texture,是点光源还是线光源我都不知道
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