Any tips to get higher performance with splats?

[Patrick-van-Halm-360Fabriek]

Hey all,

We currently have a few splats but we seem to lose a lot of performance on mobile devices. When on PC's the issue also occurs when zooming in close to the objects. When at a distance we see a very much increase of FPS within THREE.

The splat in question has 1376673 splats. Its very dense and I am assuming the splat sorting algorithm might be the bottleneck.

Is there currently a way to get higher performance? Or is there a way to make the splat less dense whilst keeping the visual fidelity (this is very important to us).

We have trained this using Postshot + Reality Capture's dense pointcloud

[seppestaes]

Is that a splat (the shoe)? I see polygons, not a single outlier?

[Patrick-van-Halm-360Fabriek]

It is a Splat yes, very high fidelity

[seppestaes]

Could you share the .splat? 1.3M doesn't seem like an overkill, as @mkkellogg mentions SHD optimizations up to 16M. Most of my scenes are about 1M i.e. 3Mb (.ksplat) runs very smoothly on mobile.

[Patrick-van-Halm-360Fabriek]

I am making use of (.splat) which is 44Mb in size Splat file (Available 30 days)

[Patrick-van-Halm-360Fabriek]

@seppestaes do you have any ideas?

[seppestaes]

Hi @Patrick-van-Halm-360Fabriek, i haven't used PostShot/Reality Capture yet. Converted it locally to .ksplat (@mkkellogg) which does seem to increase performance. Although counterintuitive, I'd try with a less dense pointcloud. On a different note, i'm pretty amazed with the details on the shoe (text etc.). Could you share your input images/video? I'll run it through my pipeline.

[notthesame23]

Could you share the .splat? 1.3M doesn't seem like an overkill, as @mkkellogg mentions SHD optimizations up to 16M. Most of my scenes are about 1M i.e. 3Mb (.ksplat) runs very smoothly on mobile.

Hello @seppestaes,
Is this a typo, or how do you achieve to compress 1 Million splats down to 3MB? I've tried to compressing down a ply file to ksplat with only around 1.6Million Splats and I'm still at 39 (!)Megabytes, even larger than the original playcanvas ply file. Of course also performace is realy subpar on older mobiles (iPhoneX) and it just crashes on an iPhone 6.
I'm thankfull for any tipps you might have that would help with performance and file size.