How to view ply in supersplat

[HuangTY96]

Hi,
This work is perfect, but the result cannot be displayed in those existing tools like supersplat and unity.
Do you have any ideal to deal with this problem?

[fantasy-fish]

Any update on this?

[tongji-rkr]

We will soon release the anchor version of 3DGS, and the training results can be converted to standard 3DGS.ply files, which can be used in web viewer and UE5

[hecodeit]

@tongji-rkr How is going of 'anchor version of 3DGS'? It's really usefull for showcase online.

[tongji-rkr]

We propose Octree-AnyGS, a general anchor-based framework that supports explicit Gaussians (2D-GS, 3D-GS) and neural Gaussians (Scaffold-GS). Additionally, Octree-GS has been adapted to the aforementioned Gaussian primitives, enabling Level-of-Detail representation for large-scale scenes. This framework holds potential for application to other Gaussian-based methods. Please refer to https://github.com/city-super/Octree-AnyGS.

[hecodeit]

@tongji-rkr

Checked the project: https://github.com/city-super/Octree-AnyGS.

Lack of the document and "The SIBR viewers is coming soon". So how "...converted to standard 3DGS.ply files..." with Octree-AnyGS?

[tongji-rkr]

Each anchor in the anchor version of 3D-GS can be converted to a SH0 Gaussian, which I think does not depend on the SIBR viewers.

[muzol132126]

I think the main problem lies in how to obtain the spherical harmonic coefficients of orders 1-3, because rgb colors can be easily obtained, corresponding to the spherical harmonic coefficient of order 0.

[tongji-rkr]

Scaffold-GS uses MLP to obtain view-dependent RGB results, so it is difficult to directly convert to SH1-3, but we also try to modify the MLP output as SH functions and obtained good results.