[praveen9920]

> The triangles are well aligned with the underlying geometry. All triangles share a consistent orientation and lie flat on the surface.

When I first read "triangle splatting," I assumed Gaussians were just replaced by triangles, but triangles being aligned with geometry changes everything. Looking forward to seeing this in action in traditional rendering pipelines.

[mxfh]

Normal aligned 3DGS was already proposed earlier[1]. This seems more like an iteration on getting performance improvement by moving from the theoretical principle closer to what the hardware is already doing well and finding a sweet spot of brute amount of features, fast rasterization method and perceived image quality.

It's already noticeable that there doesn't seem to be one fits all approach. Volumetric feathered features like clouds will not profit much from triangle representation vs high visual frequency features.

There are various avenues for speeding up rendering and improving 3d performance of 3DGS.

it's surely a very interesting research space to watch.

https://arxiv.org/pdf/2410.20593

https://speedysplat.github.io/

another venue is increasing the complexity of the gradient function like applying Gabor filters

https://arxiv.org/abs/2504.11003

some many ways to adapt and extend on the 3dgs principles.

[praveen9920]

I think the major computational task is sorting the primitives, which works great on GPUs but not so much on CPUs. Im sure there is some research happening on sort-free primitives