diff --git a/gen_3d_modules/LGM/core/options.py b/gen_3d_modules/LGM/core/options.py
index ba6e8f1..0136e56 100644
--- a/gen_3d_modules/LGM/core/options.py
+++ b/gen_3d_modules/LGM/core/options.py
@@ -55,10 +55,6 @@ class Options:
     mixed_precision: str = 'bf16'
     # learning rate
     lr: float = 4e-4
-    # augmentation prob for grid distortion
-    prob_grid_distortion: float = 0.5
-    # augmentation prob for camera jitter
-    prob_cam_jitter: float = 0.5
 
     ### testing
     # test image path
diff --git a/gen_3d_modules/LGM/core/provider_objaverse.py b/gen_3d_modules/LGM/core/provider_objaverse.py
index 310eaee..3b94bca 100644
--- a/gen_3d_modules/LGM/core/provider_objaverse.py
+++ b/gen_3d_modules/LGM/core/provider_objaverse.py
@@ -1,17 +1,14 @@
 import os
 import cv2
-import random
 import numpy as np
 
 import torch
-import torch.nn as nn
 import torch.nn.functional as F
 import torchvision.transforms.functional as TF
 from torch.utils.data import Dataset
 
-import kiui
 from LGM.core.options import Options
-from LGM.core.utils import get_rays, grid_distortion, orbit_camera_jitter
+from LGM.core.utils import get_rays
 
 IMAGENET_DEFAULT_MEAN = (0.485, 0.456, 0.406)
 IMAGENET_DEFAULT_STD = (0.229, 0.224, 0.225)
@@ -130,15 +127,6 @@ class ObjaverseDataset(Dataset):
         images_input = F.interpolate(images[:self.opt.num_input_views].clone(), size=(self.opt.input_size, self.opt.input_size), mode='bilinear', align_corners=False) # [V, C, H, W]
         cam_poses_input = cam_poses[:self.opt.num_input_views].clone()
 
-        # data augmentation
-        if self.training:
-            # apply random grid distortion to simulate 3D inconsistency
-            if random.random() < self.opt.prob_grid_distortion:
-                images_input[1:] = grid_distortion(images_input[1:])
-            # apply camera jittering (only to input!)
-            if random.random() < self.opt.prob_cam_jitter:
-                cam_poses_input[1:] = orbit_camera_jitter(cam_poses_input[1:])
-
         images_input = TF.normalize(images_input, IMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STD)
 
         # resize render ground-truth images, range still in [0, 1]
diff --git a/gen_3d_modules/LGM/core/utils.py b/gen_3d_modules/LGM/core/utils.py
index 655f921..109fc79 100644
--- a/gen_3d_modules/LGM/core/utils.py
+++ b/gen_3d_modules/LGM/core/utils.py
@@ -62,53 +62,6 @@ def orbit_camera_jitter(poses, strength=0.1):
     
     return new_poses
 
-def grid_distortion(images, strength=0.5):
-    # images: [B, C, H, W]
-    # num_steps: int, grid resolution for distortion
-    # strength: float in [0, 1], strength of distortion
-
-    B, C, H, W = images.shape
-
-    num_steps = np.random.randint(8, 17)
-    grid_steps = torch.linspace(-1, 1, num_steps)
-
-    # have to loop batch...
-    grids = []
-    for b in range(B):
-        # construct displacement
-        x_steps = torch.linspace(0, 1, num_steps) # [num_steps], inclusive
-        x_steps = (x_steps + strength * (torch.rand_like(x_steps) - 0.5) / (num_steps - 1)).clamp(0, 1) # perturb
-        x_steps = (x_steps * W).long() # [num_steps]
-        x_steps[0] = 0
-        x_steps[-1] = W
-        xs = []
-        for i in range(num_steps - 1):
-            xs.append(torch.linspace(grid_steps[i], grid_steps[i + 1], x_steps[i + 1] - x_steps[i]))
-        xs = torch.cat(xs, dim=0) # [W]
-
-        y_steps = torch.linspace(0, 1, num_steps) # [num_steps], inclusive
-        y_steps = (y_steps + strength * (torch.rand_like(y_steps) - 0.5) / (num_steps - 1)).clamp(0, 1) # perturb
-        y_steps = (y_steps * H).long() # [num_steps]
-        y_steps[0] = 0
-        y_steps[-1] = H
-        ys = []
-        for i in range(num_steps - 1):
-            ys.append(torch.linspace(grid_steps[i], grid_steps[i + 1], y_steps[i + 1] - y_steps[i]))
-        ys = torch.cat(ys, dim=0) # [H]
-
-        # construct grid
-        grid_x, grid_y = torch.meshgrid(xs, ys, indexing='xy') # [H, W]
-        grid = torch.stack([grid_x, grid_y], dim=-1) # [H, W, 2]
-
-        grids.append(grid)
-    
-    grids = torch.stack(grids, dim=0).to(images.device) # [B, H, W, 2]
-
-    # grid sample
-    images = F.grid_sample(images, grids, align_corners=False)
-
-    return images
-
 class WarningFilter(logging.Filter):
     def filter(self, record):
         if record.levelno == logging.WARNING:
diff --git a/requirements.txt b/requirements.txt
index 2ad87cc..c764268 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,10 +9,8 @@ scipy
 kornia
 opencv-python
 pillow
-roma
 nerfacc>=0.5.3
 PyMCubes
-scikit-learn
 
 # for use ML models
 diffusers>=0.26.1