The size of the data obtained by training with OpenSplat is half the size of the Python version

[Sqiuln]

OpenSplat is really great! But I've encountered some strange phenomena when using it. When I trained on the official dataset for 3D Gaussian Splatting, I found that the size of the .ply files generated by the training is half the size of the Python version of 3DGS.This could potentially lead to differences in the rendering results between OpenSplat and 3D Gaussian Splatting.
Can you tell me what the reason for this phenomenon is? I set the number of training iterations to 30,000.
OpenSplat 3DgaussianSplatting
playroom 487,752kb 838,642kb
drjohnson 256,947kb 571,773kb
train 175,448kb 258,677kb
truck 282,510kb 631,085kb

[pierotofy]

I'm not sure! I don't generally use proprietary software.