3DGS Review

Introduction

Record some interesting points in 3DGS here.

Some thinking points

For gaussian representation:

1. Modify gaussians.
2. Using NeRF-like ray calculations.

For gaussain editing:

1. Extend the dimention of time in elements like SH.
2. Novel representations of pos, ori etc.
3. Compare irradiace with force/mag-field?

For inverse rendering:

1. Use the flow of deferred rendering: expect the surface points -> calc BRDFs -> utilizing rendering equations -> get final PBR color. We may avoid the problem of hidden gaussians beneath the surface.
2. Use mesh-gs mixed representations to enhance the surface geometry.

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