Demo 3DGS

[qwer1793]

Excellent work! I met with a problem that using a 3DGS as input cannot get realistic blender file. Using kiri engine I can only get mesh and there's invisible 3DGS. :(

[jasongzy]

Please make sure you have installed the KIRI Engine addon 1.0 (we haven't made the demo compatible with version 2.0+ yet).

Also, after opening the BLEND file, switch to Viewport Shading mode and click Start camera update in the addon menu.

[qwer1793]

The render result in blend is quite unsatisfactory... Is there any way that I can get the 3DGS file for some frames directly?I wanna use the official 3DGS render.py to get the render results.

[zhqy513z]

效果确实不太好，好像导出的是采样的点云？

[jasongzy]

导出的 BLEND 文件中既有高斯对应的点云（默认隐藏），也有真正的 splats（未装 KIRI 插件 1.0 是无法显示的）

如果想要自己渲染 GS，可以考虑从 blender 中导出 per-Gaussian blend weights 和 per-frame joint transformation matrix，然后手动实现一下 LBS 的过程（对 rest pose 的 GS 做 rotation + translation 变换）

如果绑定效果不佳，可以尝试调整一下 Opacity Threshold，或者提前对高斯做一下预处理（去除不在人物身体上的点）。如果点云采样时采到了身体之外的点，会极大影响模型对 shape 的判断