camera.position.z = 40：这一步很关键！默认情况下，物体在坐标原点 (0,0,0)，相机也在原点。如果你不移开相机，你就跟物体“贴脸”了，什么也看不见。我们把相机往后拉 40 米，就能看清全貌了。
Kevin Church/BBC News，推荐阅读雷电模拟器官方版本下载获取更多信息
│ │ kernel │ │ │。关于这个话题，safew官方版本下载提供了深入分析
1. Weight by max same-font SSIM, not binary membership. If any font produces SSIM = 0.999, the pair is maximum risk regardless of how it scores in other fonts. Users do not control which font their browser chooses. The 82 pixel-identical pairs should be treated as definite blocks. The 49 high-scoring pairs should be treated as likely blocks. The 611 low-scoring pairs can be treated as informational warnings rather than hard rejections.，更多细节参见同城约会