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about data pre process #22

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foocker opened this issue Oct 13, 2022 · 1 comment

foocker commented Oct 13, 2022 •

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您好，我测试了一些自己的模型，增加了normalize=1，发现骨骼尺度上有差距，最终出来的蒙皮权重就很差，有几个问题想问下：

三角化后的模型consistent upright and front facing orientation.是指模型导入引擎，朝向(比如fbx脚本里的axis_forward='-Z', axis_up='Y')一致，然后是T-pose就行？还是三角面片坐标上有什么含义？
和smpl_std.obj对齐，直接使用您给定的归一化函数就可以？还是有什么更细致的要求？

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PeizhuoLi commented Oct 17, 2022

您好，这里的朝向就是指的使用相同的导入blender配置过后与example重的mesh朝向一致

对齐的主要要求是能尽量和smpl_std.obj一致，如果不能完全一致则尽量是能手臂高度和长度一致优先。但这个alignment没有一定最优的方案，有的时候通过肉眼进行观察调整会得到比使用--normalize=1更好的效果

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