diff --git a/.gitignore b/.gitignore
index 372a5d8..6aac4b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,6 @@ dist/
 
 image.png
 smplpytorch/native/models/*.pkl
+
+exp/
+output/
\ No newline at end of file
diff --git a/demo.py b/demo.py
index f506974..d36bce4 100644
--- a/demo.py
+++ b/demo.py
@@ -5,13 +5,13 @@ from display_utils import display_model
 
 
 if __name__ == '__main__':
-    cuda = False
+    cuda = True
     batch_size = 1
 
     # Create the SMPL layer
     smpl_layer = SMPL_Layer(
         center_idx=0,
-        gender='neutral',
+        gender='male',
         model_root='smplpytorch/native/models')
 
     # Generate random pose and shape parameters
@@ -26,6 +26,7 @@ if __name__ == '__main__':
 
     # Forward from the SMPL layer
     verts, Jtr = smpl_layer(pose_params, th_betas=shape_params)
+    print(Jtr)
 
     # Draw output vertices and joints
     display_model(
diff --git a/display_utils.py b/display_utils.py
index 2a4b13a..8b05b71 100644
--- a/display_utils.py
+++ b/display_utils.py
@@ -12,7 +12,8 @@ def display_model(
         ax=None,
         batch_idx=0,
         show=True,
-        savepath=None):
+        savepath=None,
+        only_joint=False):
     """
     Displays mesh batch_idx in batch of model_info, model_info as returned by
     generate_random_model
@@ -20,8 +21,7 @@ def display_model(
     if ax is None:
         fig = plt.figure()
         ax = fig.add_subplot(111, projection='3d')
-    verts, joints = model_info['verts'][batch_idx], model_info['joints'][
-        batch_idx]
+    verts, joints = model_info['verts'][batch_idx], model_info['joints'][batch_idx]
     if model_faces is None:
         ax.scatter(verts[:, 0], verts[:, 1], verts[:, 2], alpha=0.2)
     else:
@@ -30,7 +30,8 @@ def display_model(
         edge_color = (50 / 255, 50 / 255, 50 / 255)
         mesh.set_edgecolor(edge_color)
         mesh.set_facecolor(face_color)
-        ax.add_collection3d(mesh)
+        if not only_joint:
+            ax.add_collection3d(mesh)
     if with_joints:
         draw_skeleton(joints, kintree_table=kintree_table, ax=ax)
     ax.set_xlabel('X')
diff --git a/fit/configs/config.json b/fit/configs/config.json
new file mode 100644
index 0000000..add2030
--- /dev/null
+++ b/fit/configs/config.json
@@ -0,0 +1,25 @@
+{
+    "MODEL": {
+        "GENDER": "male"
+    },
+    "TRAIN": {
+        "LEARNING_RATE":2e-2,
+        "MAX_EPOCH": 5,
+        "WRITE": 1,
+        "SAVE": 10,
+        "BATCH_SIZE": 1,
+        "MOMENTUM": 0.9,
+        "lr_scheduler": {
+            "T_0": 10,
+            "T_mult": 2,
+            "eta_min": 1e-2
+        },
+        "loss_func": ""
+    },
+    "USE_GPU": 1,
+    "DATA_LOADER": {
+        "NUM_WORKERS": 1
+    },
+    "TARGET_PATH":"../Action2Motion/HumanAct12/HumanAct12/P01G01R01F0069T0143A0102.npy",
+    "DATASET_PATH":"../Action2Motion/HumanAct12/HumanAct12/"
+}
\ No newline at end of file
diff --git a/fit/tools/main.py b/fit/tools/main.py
new file mode 100644
index 0000000..37bc664
--- /dev/null
+++ b/fit/tools/main.py
@@ -0,0 +1,116 @@
+import matplotlib as plt
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from torch.nn.modules import module
+from torch.optim import lr_scheduler
+import torch.optim as optim
+from torch.utils.data import DataLoader
+from torch.utils.data import sampler
+import torchvision.datasets as dset
+import torchvision.transforms as T
+import numpy as np
+from tensorboardX import SummaryWriter
+from easydict import EasyDict as edict
+import time
+import inspect
+import sys
+import os
+import logging
+
+import argparse
+import json
+from tqdm import tqdm
+sys.path.append(os.getcwd())
+from display_utils import display_model
+from smplpytorch.pytorch.smpl_layer import SMPL_Layer
+from train import train
+from transform import transform
+from save import save_pic
+torch.backends.cudnn.benchmark=True
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='Fit SMPL')
+    parser.add_argument('--exp', dest='exp',
+                        help='Define exp name',
+                        default=time.strftime('%Y-%m-%d %H-%M-%S', time.localtime(time.time())), type=str)
+    parser.add_argument('--config_path', dest='config_path',
+                        help='Select configuration file',
+                        default='fit/configs/config.json', type=str)
+    parser.add_argument('--dataset_path', dest='dataset_path',
+                        help='select dataset',
+                        default='', type=str)
+    args = parser.parse_args()
+    return args
+
+def get_config(args):
+    with open(args.config_path, 'r') as f:
+        data = json.load(f)
+    cfg = edict(data.copy())
+    return cfg
+
+def set_device(USE_GPU):
+    if USE_GPU and torch.cuda.is_available():
+        device = torch.device('cuda')
+    else:
+        device = torch.device('cpu')
+    return device
+
+def get_logger(cur_path):
+    logger = logging.getLogger(__name__)
+    logger.setLevel(level=logging.INFO)
+
+    handler = logging.FileHandler(os.path.join(cur_path, "log.txt"))
+    handler.setLevel(logging.INFO)
+    formatter = logging.Formatter(
+        '%(asctime)s - %(name)s - %(levelname)s - %(message)s')
+    handler.setFormatter(formatter)
+    logger.addHandler(handler)
+
+    handler = logging.StreamHandler()
+    handler.setLevel(logging.INFO)
+    formatter = logging.Formatter(
+        '%(asctime)s - %(name)s - %(levelname)s - %(message)s')
+    handler.setFormatter(formatter)
+    logger.addHandler(handler)
+
+    writer = SummaryWriter(os.path.join(cur_path, 'tb'))
+
+    return logger, writer
+
+if __name__ == "__main__":
+    args = parse_args()
+
+    cur_path = os.path.join(os.getcwd(), 'exp', args.exp)
+    assert not os.path.exists(cur_path), 'Duplicate exp name'
+    os.mkdir(cur_path)
+
+    cfg = get_config(args)
+    json.dump(dict(cfg), open(os.path.join(cur_path, 'config.json'), 'w'))
+
+    logger, writer = get_logger(cur_path)
+    logger.info("Start print log")
+
+    device = set_device(USE_GPU=cfg.USE_GPU)
+    logger.info('using device: {}'.format(device))
+    
+    smpl_layer = SMPL_Layer(
+        center_idx = 0,
+        gender='neutral',
+        model_root='smplpytorch/native/models')
+    
+    for root,dirs,files in os.walk(cfg.DATASET_PATH):
+        for file in files:
+            logger.info('Processing file: {}'.format(file))
+            target_path=os.path.join(root,file)
+    
+            target = np.array(transform(np.load(cfg.TARGET_PATH)))
+            logger.info('File shape: {}'.format(target.shape))
+            target = torch.from_numpy(target).float()
+            
+            res = train(smpl_layer,target,
+                logger,writer,device,
+                args,cfg)
+            
+            # save_pic(target,res,smpl_layer,file)
+        
\ No newline at end of file
diff --git a/fit/tools/save.py b/fit/tools/save.py
new file mode 100644
index 0000000..0257ec9
--- /dev/null
+++ b/fit/tools/save.py
@@ -0,0 +1,38 @@
+import sys
+import os
+import re
+
+sys.path.append(os.getcwd())
+from display_utils import display_model
+
+def create_dir_not_exist(path):
+    if not os.path.exists(path):
+        os.mkdir(path)
+        
+def save_pic(target, res, smpl_layer, file):
+    pose_params, shape_params, verts, Jtr = res
+    name=re.split('[/.]',file)[-2]
+    gt_path="fit/output/HumanAct12/picture/gt/{}".format(name)
+    fit_path="fit/output/HumanAct12/picture/fit/{}".format(name)
+    create_dir_not_exist(gt_path)
+    create_dir_not_exist(fit_path)
+    for i in range(target.shape[0]):
+        display_model(
+            {'verts': verts.cpu().detach(),
+             'joints': target.cpu().detach()},
+            model_faces=smpl_layer.th_faces,
+            with_joints=True,
+            kintree_table=smpl_layer.kintree_table,
+            savepath=os.path.join(gt_path+"/frame_{}".format(i)),
+            batch_idx=i,
+            show=False,
+            only_joint=True)
+        display_model(
+            {'verts': verts.cpu().detach(),
+             'joints': Jtr.cpu().detach()},
+            model_faces=smpl_layer.th_faces,
+            with_joints=True,
+            kintree_table=smpl_layer.kintree_table,
+            savepath=os.path.join(fit_path+"/frame_{}".format(i)),
+            batch_idx=i,
+            show=False)
diff --git a/fit/tools/train.py b/fit/tools/train.py
new file mode 100644
index 0000000..8c7cbc9
--- /dev/null
+++ b/fit/tools/train.py
@@ -0,0 +1,66 @@
+import matplotlib as plt
+from matplotlib.pyplot import show
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from torch.nn.modules import module
+from torch.optim import lr_scheduler
+import torch.optim as optim
+from torch.utils.data import DataLoader
+import torchvision.datasets as dset
+import torchvision.transforms as T
+import numpy as np
+from tensorboardX import SummaryWriter
+from easydict import EasyDict as edict
+import time
+import inspect
+import sys
+import os
+import logging
+
+import argparse
+import json
+from tqdm import tqdm
+sys.path.append(os.getcwd())
+from smplpytorch.pytorch.smpl_layer import SMPL_Layer
+from display_utils import display_model
+
+def train(smpl_layer, target,
+          logger, writer, device,
+          args, cfg):
+    res = []
+    pose_params = torch.rand(target.shape[0], 72) * 0.0
+    shape_params = torch.rand(target.shape[0], 10) * 0.1
+    scale = torch.ones([1])
+
+    smpl_layer = smpl_layer.to(device)
+    pose_params = pose_params.to(device)
+    shape_params = shape_params.to(device)
+    target = target.to(device)
+    scale = scale.to(device)
+
+    pose_params.requires_grad = True
+    shape_params.requires_grad = True
+    scale.requires_grad = True
+
+    optimizer = optim.Adam([pose_params],
+                           lr=cfg.TRAIN.LEARNING_RATE)
+    
+    min_loss = float('inf')
+    for epoch in tqdm(range(cfg.TRAIN.MAX_EPOCH)):
+        verts, Jtr = smpl_layer(pose_params, th_betas=shape_params)
+        loss = F.smooth_l1_loss(Jtr * 100, target * 100)
+        optimizer.zero_grad()
+        loss.backward()
+        optimizer.step()
+        if float(loss) < min_loss:
+            min_loss = float(loss)
+            res = [pose_params, shape_params, verts, Jtr]
+        if epoch % cfg.TRAIN.WRITE == 0:
+            # logger.info("Epoch {}, lossPerBatch={:.9f}, scale={:.6f}".format(
+            #         epoch, float(loss), float(scale)))
+            writer.add_scalar('loss', float(loss), epoch)
+            writer.add_scalar('learning_rate', float(
+                optimizer.state_dict()['param_groups'][0]['lr']), epoch)
+    logger.info('Train ended, loss = {:.9f}'.format(float(loss)))
+    return res
diff --git a/fit/tools/transform.py b/fit/tools/transform.py
new file mode 100644
index 0000000..8d042fd
--- /dev/null
+++ b/fit/tools/transform.py
@@ -0,0 +1,12 @@
+import numpy as np
+
+
+def transform(arr: np.ndarray):
+    for i in range(arr.shape[0]):
+        origin = arr[i][0].copy()
+        for j in range(arr.shape[1]):
+            arr[i][j] -= origin
+            arr[i][j][1] *= -1
+            arr[i][j][2] *= -1
+        arr[i][0] = [0.0, 0.0, 0.0]
+    return arr
diff --git a/image.png b/image.png
deleted file mode 100644
index c73c891..0000000
Binary files a/image.png and /dev/null differ
diff --git a/make_gif.py b/make_gif.py
new file mode 100644
index 0000000..47950e5
--- /dev/null
+++ b/make_gif.py
@@ -0,0 +1,7 @@
+import matplotlib.pyplot as plt
+import imageio, os
+images = []
+filenames = sorted(fn for fn in os.listdir('./output/') )
+for filename in filenames:
+    images.append(imageio.imread('./output/'+filename))
+imageio.mimsave('./output/gif.gif', images, duration=0.5)
\ No newline at end of file