Converted SPZ from ply output quality's so poor

[EJShim]

Hello.

I have tested ply to spz conversion using below code :

#include <iostream>
#include <load-spz.h>

int main(int argc, char *argv[]){

    if(argc < 3){        
        return 1;
    }

    // Load PLY File
    spz::GaussianCloud splat =  spz::loadSplatFromPly(argv[1]);

   // Save SPZ File
    spz::saveSpz(splat, argv[2]);

    return 0;
}

Below's the output quality (rendered using babylon.js, left : ply, right : spz)

Seems like the spz file has wrong splat rotations, and the colors are somehow faded.

I used original_lego.ply file from here

Do you think such decline in a quality is unavoidable? Maybe because of quantization and rotation normalization?

[Vilour]

Maybe you could try render with Niantic Studio? babylon.js currently not supports SH which may lead to degeneration.

[pedrocruzio]

@Vilour is there an open source web viewer for spz? I haven't seen an official one from Niantic.