Combination with bilateral-grid

[mapoto]

Hi! Great work and thank you for making this available to public!

I wonder if you have tried to use the --pipeline.model.use-bilateral-grid True option since it can potentially improve the result.

I did try it but it gives me:

RuntimeError: Optimizer config for 'bilateral_grid' not found in config file. Make sure you specify an optimizer for each parameter group. Provided configs were: dict_keys(['means', 'features_dc', 'features_rest', 'opacities', 'scales', 'quats', 'camera_opt'])

But when I define the configs in igs2gs_config.py like so:

 "bilateral-grid": {
          "optimizer": AdamOptimizerConfig(lr=0.002, eps=1e-15, max_norm=None, weight_decay=0),
          "scheduler": ExponentialDecaySchedulerConfig(
                   lr_pre_warmup=0, lr_final=0.0001, warmup_steps=1000, max_steps=30000, ramp="cosine"
          ),
},

ns-train seems to call splatfacto instead of igs2gs. Do you have an idea what is going on here?