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import torch
import numpy as np
import os 

from ..mesh.io import save_obj, to_mesh
from ..mesh.smpl2mesh import SMPL2Mesh
from ..skeleton import SkeletonAMASS, convert2humanml
from ..skeleton2smpl.skeleton2smpl import Skeleton2Obj
import json
from scipy.ndimage import gaussian_filter1d


def save_mesh(vertices, faces, output_dir, output_idx=None):
    """Save mesh vertices and faces to obj files.
    
    Args:
        vertices: Mesh vertices with shape (num_vertices, 3, num_frames)
        faces: Mesh faces
        output_dir: Directory to save the obj files
        output_idx: Index of the prediction to save
    """
    # create obs_obj and pred_{i}_obj folders
    obs_obj_dir = os.path.join(output_dir, "obs_obj")
    os.makedirs(obs_obj_dir, exist_ok=True)
    
    if output_idx is not None:
        pred_obj_dir = os.path.join(output_dir, f"pred_{output_idx}_obj")
        os.makedirs(pred_obj_dir, exist_ok=True)
    
    # Ensure vertices has the correct shape (num_vertices, 3, num_frames)
    if len(vertices.shape) == 4:  # If we have an extra batch dimension
        vertices = vertices.squeeze(0)  # Remove the batch dimension
    
    # Convert vertices to numpy if it's a tensor
    if torch.is_tensor(vertices):
        vertices = vertices.cpu().numpy()
    if torch.is_tensor(faces):
        faces = faces.cpu().numpy()
    
    print(f"Processing mesh for output index {output_idx}")
    
    # Save first 30 frames to obs_obj directory
    for frame_i in range(30):
        file_path = os.path.join(output_dir, f"obs_obj/frame{frame_i:03d}.obj")
        frame_vertices = vertices[:, :, frame_i]
        mesh = to_mesh(frame_vertices, faces)
        save_obj(mesh, file_path)
    
    # Save remaining frames to pred directory
    if output_idx is not None:
        for frame_i in range(30, vertices.shape[2]):
            file_path = os.path.join(output_dir, f"pred_{output_idx}_obj/frame{frame_i:03d}.obj")
            frame_vertices = vertices[:, :, frame_i]
            mesh = to_mesh(frame_vertices, faces)
            save_obj(mesh, file_path)
    
    print(f"Saved obj files to [{output_dir}]")

def main():
    num_smplify_iters = 20 # This is what requires most time. It can be decreased or increasd depending on the output quality we want (or how quick we canr each it)
    device = "cuda"

    # get observation smpl params
    json_file_path = "./smpl_params.json"
    with open(json_file_path, "r") as json_file:
        loaded_data = json.load(json_file)
    person_idx = 0
    smpl_dict_last_obs = loaded_data[-1]        
    smpl_dict_last_obs = {k: torch.from_numpy(np.array(v)).float().to(device) for k,v in smpl_dict_last_obs.items()}

    # select just some of the motions
    # TO DO use the previous code with the limb length variance error to choose the sample
    # Or pick the most diverse

    skeleton = SkeletonAMASS
    
    pred_files = ['pred_closest_GT.npy']
    pred_motions = torch.from_numpy(np.load(pred_files[0], allow_pickle=True)).to(device)
    pred_motions = pred_motions.view(-1, 22, 3)
    pred_motions = convert2humanml(pred_motions, skeleton.LANDMARKS, skeleton.TO_HUMANML_NAMES)
    loaded_data = np.load("obs_data.npz", allow_pickle=True)
    rot_motions_obs = loaded_data["rot_motions_obs"]
    smpl_dict_obs = loaded_data['smpl_dict_obs'].item()
    smpl_dict_obs = {k: torch.from_numpy(v).to(device) for k,v in smpl_dict_obs.items()}


    # init_params = {}
    init_params = {}
    current_motions = pred_motions
    init_params["betas"] = smpl_dict_last_obs["betas"][person_idx].unsqueeze(0).expand(current_motions.shape[0], -1)
    init_params["pose"] = smpl_dict_last_obs["body_pose"][person_idx].view(-1, 3)
    # init_params["pose"] = torch.stack([init_params["pose"][..., 0], init_params["pose"][..., 2], -init_params["pose"][..., 1]], dim=-1)
    assert init_params["pose"].shape[0] == 24, "the body pose should have 24 joints, it is the output of NLF"
    
    init_params["pose"] = init_params["pose"].unsqueeze(0).expand(current_motions.shape[0], -1, -1).view(current_motions.shape[0], -1).to(device)
    
    # init_params["pose"] = (torch.tensor([ 0.4531,  0.3044,  0.2968, -0.2239,  0.0174,  0.0925, -0.2378, -0.0465,
    #                     -0.0786,  0.2782,  0.0141,  0.0138,  0.4328, -0.0629, -0.0961,  0.5043,
    #                     0.0035,  0.0610,  0.0230, -0.0317,  0.0058,  0.0070,  0.1317, -0.0544,
    #                     -0.0589, -0.1752,  0.1355,  0.0134, -0.0037,  0.0089, -0.2093,  0.1600,
    #                     0.1092, -0.0387,  0.0824, -0.2041, -0.0056, -0.0075, -0.0035, -0.0237,
    #                     -0.1248, -0.2736, -0.0459,  0.1991,  0.2373,  0.0667, -0.0405,  0.0329,
    #                     0.0536, -0.2914, -0.6969,  0.0559,  0.2858,  0.6525,  0.1222, -0.9116,
    #                     0.2383, -0.0366,  0.9237, -0.2554, -0.0657, -0.1045,  0.0501, -0.0388,
    #                     0.0909, -0.0707, -0.1437, -0.0590, -0.1801, -0.0875,  0.1093,  0.2009])
    #                     .unsqueeze(0)
    #                     .repeat(pred_motions.shape[0], 1)
    #                     .float().to(device)
    #     )
    # init_params["pose"] = (torch.tensor([ 0.4531,  0.3044,  -1, -0.2239,  0.0174,  0.0925, -0.2378, -0.0465,
    #                     -0.0786,  0.2782,  0.0141,  0.0138,  0.4328, -0.0629, -0.0961,  0.5043,
    #                     0.0035,  0.0610,  0.0230, -0.0317,  0.0058,  0.0070,  0.1317, -0.0544,
    #                     -0.0589, -0.1752,  0.1355,  0.0134, -0.0037,  0.0089, -0.2093,  0.1600,
    #                     0.1092, -0.0387,  0.0824, -0.2041, -0.0056, -0.0075, -0.0035, -0.0237,
    #                     -0.1248, -0.2736, -0.0459,  0.1991,  0.2373,  0.0667, -0.0405,  0.0329,
    #                     0.0536, -0.2914, -0.6969,  0.0559,  0.2858,  0.6525,  0.1222, -0.9116,
    #                     0.2383, -0.0366,  0.9237, -0.2554, -0.0657, -0.1045,  0.0501, -0.0388,
    #                     0.0909, -0.0707, -0.1437, -0.0590, -0.1801, -0.0875,  0.1093,  0.2009])
    #                     .unsqueeze(0)
    #                     .repeat(pred_motions.shape[0], 1)
    #                     .float().to(device)
    #     )
    init_params = {}
    init_params["betas"] = smpl_dict_obs["betas"][-1].unsqueeze(0).expand(pred_motions.shape[0], -1).to(device)
    # init_params["betas"] = torch.tensor([10.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]).repeat(pred_motions.shape[0], 1).to(device)
    init_params["pose"] = smpl_dict_obs["pose"][-1].unsqueeze(0).expand(pred_motions.shape[0], -1, -1).view(pred_motions.shape[0], -1).to(device)
    init_params["cam"] = smpl_dict_obs["cam"][-1].unsqueeze(0).expand(pred_motions.shape[0], -1, -1).to(device)
    init_params["pose"] = torch.zeros(pred_motions.shape[0], 72).to(device)
    # # smpl_dict_last_obs["transl"][person_idx] = torch.stack([-smpl_dict_last_obs["transl"][person_idx][..., 2], smpl_dict_last_obs["transl"][person_idx][..., 0], -smpl_dict_last_obs["transl"][person_idx][..., 1]], dim=-1)
    # init_params["cam"] = smpl_dict_last_obs["transl"][person_idx].unsqueeze(0).unsqueeze(-2).expand(current_motions.shape[0], -1, -1).to(device)
    
    skeleton2obj = Skeleton2Obj(
        device=device, num_smplify_iters=num_smplify_iters, 
        smpl_model_dir="./models/body_models/", #path to smpl body models
        gmm_model_dir="./models/joint2smpl_models/", #path to gmm model
    )
    rot_motions, smpl_dict = skeleton2obj.convert_motion_2smpl(pred_motions, hmp=True, init_params=init_params, fix_betas=True)

    smpl2mesh = SMPL2Mesh(device)
    vertices, faces = smpl2mesh.convert_smpl_to_mesh(rot_motions, pred_motions)

    pred_files = [('./hanyu_t')]
    vertices = vertices.reshape(*vertices.shape[:2], len(pred_files), -1)
    for v, npy_file in zip(np.moveaxis(vertices, 2, 0), pred_files):
        save_mesh(v, faces, npy_file)


def process_motion(smpl_params_path, pred_motions_path, device, sorted_idx, output_dir='./hanyu_obj'):
    num_smplify_iters = 40
    device = "cuda"

    # Load and preprocess data once
    with open(smpl_params_path, "r") as json_file:
        loaded_data = json.load(json_file)
    person_idx = 0
    smpl_dict_last_obs = {k: torch.from_numpy(np.array(v)).float().to(device) for k,v in loaded_data[1].items()}

    # Load predictions and preprocess
    pred_motions = torch.from_numpy(np.load(pred_motions_path, allow_pickle=True)).to(device)
    pred_motions = pred_motions.squeeze(0)[sorted_idx]  # Shape: (num_samples, num_frames, 22, 3)
    
    # Initialize skeleton once
    skeleton = SkeletonAMASS
    
    # Pre-allocate lists for results
    all_vertices = []
    all_faces = None
    first_rot_motions = None
    first_smpl_dict = None

    # Pre-compute common parameters
    init_betas = smpl_dict_last_obs["betas"][person_idx]
    init_pose = smpl_dict_last_obs["body_pose"][person_idx].view(-1, 3)
    assert init_pose.shape[0] == 24, "the body pose should have 24 joints, it is the output of NLF"

    # Initialize SMPL2Mesh once
    smpl2mesh = SMPL2Mesh(device)
    
    # Initialize Skeleton2Obj once
    skeleton2obj = Skeleton2Obj(
        device=device, 
        num_smplify_iters=num_smplify_iters,
        smpl_model_dir="./models/body_models/",
        gmm_model_dir="./models/joint2smpl_models/",
    )

    # Process each sample
    for sample_idx in range(len(sorted_idx)):
        current_motions = pred_motions[sample_idx].reshape(-1, 22, 3)
        current_motions = convert2humanml(current_motions, skeleton.LANDMARKS, skeleton.TO_HUMANML_NAMES)
        
        # Prepare init params efficiently
        init_params = {
            "betas": init_betas.unsqueeze(0).expand(current_motions.shape[0], -1),
            "pose": init_pose.unsqueeze(0).expand(current_motions.shape[0], -1, -1).view(current_motions.shape[0], -1).to(device),
            "cam": torch.Tensor([0.0, 0.0, 0.0]).unsqueeze(0).to(device)
        }

        # Get first frame parameters if not already computed
        if first_rot_motions is None:
            with torch.set_grad_enabled(True):
                first_rot_motions, first_smpl_dict = skeleton2obj.convert_motion_2smpl(
                    current_motions[0].unsqueeze(0).to(device), 
                    hmp=False, 
                    init_params=None, 
                    fix_betas=False
                )
        
        # Update init params with first frame data
        init_params["pose"] = first_rot_motions.repeat(current_motions.shape[0], 1)
        init_params["betas"] = first_smpl_dict["betas"].repeat(current_motions.shape[0], 1)
        init_params["cam"] = first_smpl_dict["cam"]

        # Convert motion to SMPL
        with torch.set_grad_enabled(True):
            rot_motions, smpl_dict = skeleton2obj.convert_motion_2smpl(
                current_motions, 
                hmp=True, 
                init_params=init_params, 
                fix_betas=True
            )
        
        # Process rotations
        rot_motions = rot_motions.reshape(-1, 24, 3).reshape(-1, 72)
        
        # Apply Gaussian smoothing to specific parameters
        rot_motions_np = rot_motions.cpu().numpy()
        sigma = 3.0
        for param_idx in range(36, 40):
            rot_motions_np[:, param_idx] = gaussian_filter1d(rot_motions_np[:, param_idx], sigma=sigma)
        for param_idx in range(45, 49):
            rot_motions_np[:, param_idx] = gaussian_filter1d(rot_motions_np[:, param_idx], sigma=sigma)
        rot_motions = torch.from_numpy(rot_motions_np).to(device)

        # Convert to mesh
        vertices, faces = smpl2mesh.convert_smpl_to_mesh(rot_motions, current_motions)
        if all_faces is None:
            all_faces = faces
        all_vertices.append(vertices)

    # Convert faces to numpy once at the end
    if torch.is_tensor(all_faces):
        all_faces = all_faces.cpu().numpy()

    # Save results
    os.makedirs(output_dir, exist_ok=True)
    for i, vertices in enumerate(all_vertices):
        print(vertices.shape)
        save_mesh(vertices, all_faces, output_dir, output_idx=i)


def smpl_to_mesh(smpl_params_path, pred_motions_path, device, sorted_idx):
    num_smplify_iters = 20 # This is what requires most time. It can be decreased or increasd depending on the output quality we want (or how quick we canr each it)
    device = "cuda"
    # Process each sample separately to maintain frame order
    all_vertices = []
    all_faces = None
    # get observation smpl params
    json_file_path = smpl_params_path
    with open(json_file_path, "r") as json_file:
        loaded_data = json.load(json_file)
    person_idx = 0
    smpl_dict_last_obs = loaded_data[1]        
    smpl_dict_last_obs = {k: torch.from_numpy(np.array(v)).float().to(device) for k,v in smpl_dict_last_obs.items()}
    
    pred_motions = torch.from_numpy(np.load(pred_motions_path, allow_pickle=True)).to(device) 
    current_motions = pred_motions[sorted_idx][:30]

    smpl2mesh = SMPL2Mesh(device)

    init_params = {}
    init_params["betas"] = smpl_dict_last_obs["betas"][person_idx].unsqueeze(0).expand(current_motions.shape[0], -1)
    init_params["pose"] = smpl_dict_last_obs["body_pose"][person_idx].view(-1, 3)
    # init_params["pose"] = torch.stack([init_params["pose"][..., 0], init_params["pose"][..., 2], -init_params["pose"][..., 1]], dim=-1)
    assert init_params["pose"].shape[0] == 24, "the body pose should have 24 joints, it is the output of NLF"
    
    init_params["pose"] = init_params["pose"].unsqueeze(0).expand(current_motions.shape[0], -1, -1).view(current_motions.shape[0], -1).to(device)
    # rot_motions is a tensor 30,72
    rot_motions = torch.zeros(30, 72).to(device)
    current_motions = current_motions[0, 0, :30, :, :]
    # rot_motions[frame_id] = loaded_data[frame_id]["pose"]
    for frame_id in range(30):
        # print(f"Processing frame {frame_id}")
        # rot_motions.append(loaded_data[frame_id]["body_pose"])
        temp = torch.tensor(loaded_data[frame_id]["body_pose"]).to(device).reshape(-1, 24, 3)
        # temp = torch.stack([temp[..., 0], temp[..., 2], -temp[..., 1]], dim=-1)
        rot_motions[frame_id] = temp.view(-1, 72)
        rot_motions[frame_id, 0] = 1.6005e+00  # X-axis rotation
        rot_motions[frame_id, 1] = 8.2655e-01  # Y-axis rotation
        rot_motions[frame_id, 2] = 9.4306e-01  # Z-axis rotation
    
    # rot_motions = torch.tensor([[ 1.6005e+00,  8.2655e-01,  9.4306e-01, -1.0372e-01,  2.7821e-02,
    #      -3.8120e-01, -6.2227e-01, -1.3174e-01, -3.9679e-01, -5.5898e-02,
    #       4.0376e-02,  1.0782e-01, -2.1775e-02,  9.2568e-02, -8.4396e-02,
    #       9.6487e-01,  4.5018e-02,  2.5192e-01, -1.0397e-01,  1.1797e-01,
    #      -1.3300e-01, -1.0074e+00,  5.0848e-01,  5.7921e-01, -6.9055e-01,
    #      -4.2592e-02,  2.1878e-01,  1.1854e-01,  1.6012e-01, -7.8607e-02,
    #       3.0257e-01,  3.8598e-02, -5.1632e-01,  1.3716e-01,  1.6491e-01,
    #       7.4003e-02,  2.7080e-01,  2.8428e-01, -1.6114e-01, -2.1017e-01,
    #       3.2442e-01,  5.4414e-01,  1.6220e-01, -2.2343e-02, -5.5549e-01,
    #      -5.5686e-01,  1.4427e-01,  5.9082e-02, -8.0001e-02,  2.5315e-01,
    #      -4.6155e-01, -2.7584e-01,  2.5945e-03,  4.7265e-01, -5.5788e-02,
    #      -5.2776e-01,  8.8441e-02,  1.2666e-01,  1.8338e-01,  2.2411e-02,
    #       2.5319e-02, -2.4700e-01, -4.3147e-01, -9.9603e-02,  2.8157e-01,
    #       2.2922e-01, -4.2805e-01,  6.8633e-02,  1.2775e-01, -1.7168e-01,
    #      -6.4354e-02, -4.8196e-02],
    #     [ 1.6031e+00,  8.6938e-01,  9.5093e-01, -2.4728e-01, -2.5365e-02,
    #      -3.5090e-01, -6.2714e-01, -1.3281e-01, -3.8726e-01, -7.5513e-02,
    #       5.1388e-02,  1.0953e-01,  2.4019e-01,  9.5262e-02, -1.1295e-01,
    #       9.5034e-01,  3.7820e-02,  2.5818e-01, -1.1904e-01,  1.0212e-01,
    #      -1.2446e-01, -1.0170e+00,  5.0628e-01,  5.7588e-01, -6.8644e-01,
    #      -5.0001e-02,  1.9725e-01,  1.1670e-01,  1.5288e-01, -7.3347e-02,
    #       2.7852e-01,  3.9223e-02, -5.1571e-01,  1.3149e-01,  1.5630e-01,
    #       7.1519e-02,  2.7341e-01,  2.7110e-01, -1.6775e-01, -2.0063e-01,
    #       3.1425e-01,  5.2800e-01,  1.5228e-01, -3.0518e-02, -5.5076e-01,
    #      -5.4393e-01,  1.5199e-01,  7.1569e-02, -8.7057e-02,  2.5214e-01,
    #      -4.4306e-01, -2.8668e-01, -2.0587e-02,  4.6127e-01, -4.5369e-02,
    #      -5.3020e-01,  8.1563e-02,  1.2601e-01,  2.0114e-01,  2.6854e-02,
    #       2.3951e-02, -2.4098e-01, -4.2893e-01, -1.0319e-01,  2.7675e-01,
    #       2.2407e-01, -4.0467e-01,  7.5838e-02,  1.2791e-01, -1.5939e-01,
    #      -6.1213e-02, -2.8723e-02],
    #     [ 1.6110e+00,  8.7997e-01,  9.4755e-01, -2.9480e-01, -5.0045e-02,
    #      -3.4665e-01, -6.4217e-01, -1.2302e-01, -3.8091e-01, -8.1906e-02,
    #       5.4623e-02,  1.0953e-01,  3.0538e-01,  9.1858e-02, -1.1804e-01,
    #       9.5882e-01,  4.4244e-02,  2.5869e-01, -1.2163e-01,  9.9909e-02,
    #      -1.2311e-01, -1.0218e+00,  4.9697e-01,  5.8416e-01, -6.8940e-01,
    #      -3.8903e-02,  1.9803e-01,  1.0894e-01,  1.5256e-01, -7.2756e-02,
    #       2.7297e-01,  4.9584e-02, -5.2945e-01,  1.3066e-01,  1.4965e-01,
    #       6.4956e-02,  2.8823e-01,  2.7311e-01, -1.7025e-01, -2.0369e-01,
    #       3.1524e-01,  5.3636e-01,  1.5043e-01, -3.4381e-02, -5.6039e-01,
    #      -5.4034e-01,  1.5133e-01,  7.7262e-02, -8.2864e-02,  2.4608e-01,
    #      -4.5811e-01, -2.8397e-01, -1.5466e-02,  4.8184e-01, -3.5552e-02,
    #      -5.3320e-01,  9.3335e-02,  1.2752e-01,  2.0015e-01,  9.5036e-03,
    #       2.3358e-02, -2.4074e-01, -4.3686e-01, -1.1153e-01,  2.7872e-01,
    #       2.2347e-01, -4.0031e-01,  8.1883e-02,  1.3366e-01, -1.5507e-01,
    #      -6.3415e-02, -2.5810e-02],
    #     [ 1.6078e+00,  8.2731e-01,  9.4191e-01, -1.2817e-01,  1.0199e-02,
    #      -3.8164e-01, -6.3457e-01, -1.2142e-01, -3.9256e-01, -5.9317e-02,
    #       4.1749e-02,  1.0364e-01, -6.4504e-03,  8.3162e-02, -8.5214e-02,
    #       9.7525e-01,  5.4130e-02,  2.4759e-01, -1.0453e-01,  1.1918e-01,
    #      -1.3388e-01, -1.0173e+00,  4.9495e-01,  5.9313e-01, -7.0463e-01,
    #      -3.1721e-02,  2.2378e-01,  1.1515e-01,  1.6104e-01, -7.8829e-02,
    #       3.0084e-01,  5.3103e-02, -5.3755e-01,  1.4287e-01,  1.6034e-01,
    #       6.3805e-02,  2.8415e-01,  2.8788e-01, -1.6004e-01, -2.1489e-01,
    #       3.3769e-01,  5.6067e-01,  1.6184e-01, -3.1818e-02, -5.6590e-01,
    #      -5.5922e-01,  1.3768e-01,  6.3404e-02, -8.5235e-02,  2.5253e-01,
    #      -4.8702e-01, -2.8300e-01,  1.6068e-02,  5.0862e-01, -6.2476e-02,
    #      -5.5081e-01,  1.3232e-01,  1.1314e-01,  1.7680e-01, -3.0066e-02,
    #       2.8321e-02, -2.4106e-01, -4.3505e-01, -1.0106e-01,  2.7696e-01,
    #       2.2127e-01, -4.3045e-01,  7.2721e-02,  1.3034e-01, -1.6938e-01,
    #      -6.5850e-02, -4.7649e-02],
    #     [ 1.6127e+00,  8.2087e-01,  9.3510e-01, -1.2865e-01,  7.0033e-03,
    #      -3.8277e-01, -6.4321e-01, -1.1820e-01, -3.9148e-01, -5.7967e-02,
    #       4.2050e-02,  1.0235e-01, -1.8375e-02,  8.0566e-02, -8.2773e-02,
    #       9.7714e-01,  5.6629e-02,  2.4823e-01, -1.0411e-01,  1.2287e-01,
    #      -1.3516e-01, -1.0191e+00,  4.8862e-01,  5.9904e-01, -7.0806e-01,
    #      -2.2407e-02,  2.2896e-01,  1.1342e-01,  1.6324e-01, -7.8949e-02,
    #       3.0168e-01,  6.0124e-02, -5.4830e-01,  1.4416e-01,  1.5701e-01,
    #       5.9664e-02,  2.8986e-01,  2.9288e-01, -1.5865e-01, -2.1956e-01,
    #       3.4455e-01,  5.7280e-01,  1.6278e-01, -3.1477e-02, -5.7379e-01,
    #      -5.6414e-01,  1.3230e-01,  6.3549e-02, -8.4579e-02,  2.5156e-01,
    #      -5.0488e-01, -2.8463e-01,  2.8527e-02,  5.2620e-01, -6.6063e-02,
    #      -5.4647e-01,  1.4498e-01,  1.0835e-01,  1.5971e-01, -4.4815e-02,
    #       2.8694e-02, -2.3884e-01, -4.4007e-01, -1.0147e-01,  2.7542e-01,
    #       2.2058e-01, -4.3300e-01,  7.6706e-02,  1.3656e-01, -1.6946e-01,
    #      -6.9181e-02, -5.3041e-02],
    #     [ 1.6108e+00,  8.8141e-01,  9.4745e-01, -3.1157e-01, -5.7691e-02,
    #      -3.4433e-01, -6.4394e-01, -1.2029e-01, -3.7842e-01, -8.1581e-02,
    #       5.4783e-02,  1.1136e-01,  3.2240e-01,  8.5124e-02, -1.1836e-01,
    #       9.5431e-01,  4.9055e-02,  2.5693e-01, -1.2930e-01,  9.6078e-02,
    #      -1.2446e-01, -1.0248e+00,  4.9433e-01,  5.8570e-01, -7.0217e-01,
    #      -4.1788e-02,  1.9344e-01,  1.1305e-01,  1.5165e-01, -7.0912e-02,
    #       2.7373e-01,  5.2925e-02, -5.3586e-01,  1.3504e-01,  1.4768e-01,
    #       6.5673e-02,  2.8562e-01,  2.7257e-01, -1.7666e-01, -2.0663e-01,
    #       2.9556e-01,  5.3934e-01,  1.4793e-01, -2.3227e-02, -5.6870e-01,
    #      -5.4620e-01,  1.5352e-01,  8.2237e-02, -8.0556e-02,  2.4192e-01,
    #      -4.6349e-01, -2.7927e-01, -2.2375e-02,  4.8494e-01, -3.1615e-02,
    #      -4.9880e-01,  7.3527e-02,  1.3946e-01,  1.8965e-01,  3.0069e-02,
    #       1.9538e-02, -2.3811e-01, -4.4155e-01, -1.1854e-01,  2.7917e-01,
    #       2.2786e-01, -3.9457e-01,  8.4604e-02,  1.3755e-01, -1.5437e-01,
    #      -6.4888e-02, -2.4748e-02],
    #     [ 1.6175e+00,  8.4030e-01,  9.4400e-01, -2.6284e-01, -4.4624e-02,
    #      -3.6173e-01, -6.6031e-01, -1.1552e-01, -3.8892e-01, -6.9325e-02,
    #       5.2747e-02,  9.9177e-02,  2.3507e-01,  8.6017e-02, -1.1489e-01,
    #       9.8375e-01,  5.2098e-02,  2.5241e-01, -1.1985e-01,  1.0992e-01,
    #      -1.3038e-01, -1.0503e+00,  4.9318e-01,  6.0568e-01, -7.0369e-01,
    #      -2.8890e-02,  2.1513e-01,  1.0779e-01,  1.5872e-01, -7.6392e-02,
    #       2.8910e-01,  5.8300e-02, -5.4987e-01,  1.3028e-01,  1.5376e-01,
    #       5.4624e-02,  2.9445e-01,  2.8195e-01, -1.6763e-01, -2.1595e-01,
    #       3.2959e-01,  5.6479e-01,  1.5581e-01, -2.9649e-02, -5.7555e-01,
    #      -5.4656e-01,  1.4160e-01,  7.7658e-02, -8.1496e-02,  2.3873e-01,
    #      -4.8825e-01, -2.7527e-01,  1.7245e-02,  5.1932e-01, -4.8679e-02,
    #      -5.3691e-01,  1.1823e-01,  1.3559e-01,  1.8416e-01, -1.0622e-02,
    #       2.1179e-02, -2.3586e-01, -4.4682e-01, -1.1912e-01,  2.7786e-01,
    #       2.2629e-01, -4.1122e-01,  8.6780e-02,  1.4446e-01, -1.5303e-01,
    #      -6.8516e-02, -4.3646e-02],
    #     [ 1.6171e+00,  8.0908e-01,  9.3404e-01, -1.4870e-01, -3.6595e-03,
    #      -3.8383e-01, -6.5764e-01, -1.1242e-01, -3.9115e-01, -5.7404e-02,
    #       4.3636e-02,  9.8583e-02,  1.3409e-02,  7.8856e-02, -8.7588e-02,
    #       9.8670e-01,  6.0058e-02,  2.4756e-01, -1.0946e-01,  1.2403e-01,
    #      -1.3564e-01, -1.0405e+00,  4.9134e-01,  6.0754e-01, -7.1781e-01,
    #      -2.0699e-02,  2.2599e-01,  1.1115e-01,  1.6500e-01, -7.9038e-02,
    #       3.0904e-01,  6.1142e-02, -5.5141e-01,  1.4399e-01,  1.5818e-01,
    #       6.5279e-02,  2.9516e-01,  2.9465e-01, -1.5912e-01, -2.2604e-01,
    #       3.4378e-01,  5.7770e-01,  1.6292e-01, -2.3460e-02, -5.7651e-01,
    #      -5.5556e-01,  1.3447e-01,  6.7109e-02, -7.7476e-02,  2.4402e-01,
    #      -5.0284e-01, -2.7063e-01,  4.2260e-02,  5.2265e-01, -6.5846e-02,
    #      -5.3722e-01,  1.2826e-01,  1.3189e-01,  1.6297e-01, -1.5593e-02,
    #       2.0784e-02, -2.3802e-01, -4.4729e-01, -1.1048e-01,  2.7932e-01,
    #       2.2813e-01, -4.2831e-01,  8.1248e-02,  1.4348e-01, -1.6234e-01,
    #      -7.2073e-02, -6.0110e-02],
    #     [ 1.6172e+00,  8.0780e-01,  9.2508e-01, -1.1043e-01,  1.5869e-02,
    #      -3.9091e-01, -6.5147e-01, -1.2169e-01, -3.8974e-01, -5.2630e-02,
    #       3.9148e-02,  1.0425e-01, -5.0874e-02,  8.0342e-02, -7.4880e-02,
    #       9.6878e-01,  4.6173e-02,  2.4613e-01, -1.1391e-01,  1.2274e-01,
    #      -1.3708e-01, -1.0093e+00,  4.9945e-01,  5.9141e-01, -7.1179e-01,
    #      -4.1468e-02,  2.2081e-01,  1.1880e-01,  1.6512e-01, -7.7646e-02,
    #       3.0951e-01,  5.2777e-02, -5.3674e-01,  1.4769e-01,  1.6093e-01,
    #       6.6290e-02,  2.7911e-01,  2.8816e-01, -1.6946e-01, -2.2208e-01,
    #       3.2207e-01,  5.6807e-01,  1.5750e-01, -1.0790e-02, -5.7038e-01,
    #      -5.6035e-01,  1.3992e-01,  6.4614e-02, -7.6299e-02,  2.4234e-01,
    #      -4.9502e-01, -2.8281e-01,  3.6125e-02,  5.0050e-01, -5.3537e-02,
    #      -4.7532e-01,  9.4072e-02,  1.1179e-01,  1.3639e-01,  1.0555e-03,
    #       3.0102e-02, -2.3356e-01, -4.4694e-01, -9.9521e-02,  2.7499e-01,
    #       2.2463e-01, -4.2757e-01,  7.5108e-02,  1.4227e-01, -1.7291e-01,
    #      -7.0797e-02, -5.5015e-02],
    #     [ 1.6127e+00,  7.9969e-01,  9.2656e-01, -9.2324e-02,  2.1135e-02,
    #      -3.9503e-01, -6.4862e-01, -1.1920e-01, -3.8847e-01, -4.7938e-02,
    #       3.7856e-02,  1.0542e-01, -7.5337e-02,  7.9361e-02, -7.1081e-02,
    #       9.7582e-01,  4.9855e-02,  2.4424e-01, -1.1079e-01,  1.2464e-01,
    #      -1.3823e-01, -1.0107e+00,  5.0145e-01,  5.9228e-01, -7.1782e-01,
    #      -4.1891e-02,  2.2175e-01,  1.1935e-01,  1.6617e-01, -7.8416e-02,
    #       3.1054e-01,  5.2554e-02, -5.3566e-01,  1.4889e-01,  1.6306e-01,
    #       6.5496e-02,  2.8046e-01,  2.8974e-01, -1.6876e-01, -2.2292e-01,
    #       3.2426e-01,  5.7149e-01,  1.5917e-01, -9.2451e-03, -5.7336e-01,
    #      -5.6363e-01,  1.3957e-01,  6.2405e-02, -7.7520e-02,  2.4188e-01,
    #      -5.0227e-01, -2.8387e-01,  4.2127e-02,  5.0270e-01, -5.5740e-02,
    #      -4.7964e-01,  9.9425e-02,  1.1146e-01,  1.3111e-01, -4.0174e-03,
    #       3.0246e-02, -2.3279e-01, -4.4877e-01, -9.8105e-02,  2.7429e-01,
    #       2.2596e-01, -4.3045e-01,  7.3784e-02,  1.4046e-01, -1.7344e-01,
    #      -7.0867e-02, -5.6526e-02],
    #     [ 1.6120e+00,  7.8502e-01,  9.1977e-01, -5.2430e-02,  3.4929e-02,
    #      -4.0406e-01, -6.5727e-01, -1.1731e-01, -3.8496e-01, -4.3661e-02,
    #       3.5240e-02,  1.0774e-01, -1.6151e-01,  8.3658e-02, -5.7072e-02,
    #       9.8469e-01,  4.6138e-02,  2.4297e-01, -1.0707e-01,  1.3566e-01,
    #      -1.3919e-01, -1.0010e+00,  5.0230e-01,  5.9108e-01, -7.1900e-01,
    #      -3.8501e-02,  2.2520e-01,  1.1559e-01,  1.7051e-01, -8.0410e-02,
    #       3.1320e-01,  5.2449e-02, -5.3276e-01,  1.5435e-01,  1.7007e-01,
    #       7.0888e-02,  2.8487e-01,  2.9777e-01, -1.5472e-01, -2.3231e-01,
    #       3.5546e-01,  5.8281e-01,  1.6599e-01, -1.8913e-02, -5.7525e-01,
    #      -5.5674e-01,  1.3210e-01,  5.5984e-02, -8.3314e-02,  2.3888e-01,
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    #     [ 1.5928e+00,  7.7859e-01,  9.1728e-01,  3.8561e-02,  8.3874e-02,
    #      -4.1888e-01, -6.2321e-01, -1.3401e-01, -3.8596e-01, -2.8135e-02,
    #       2.6617e-02,  1.2287e-01, -2.7631e-01,  1.0193e-01, -3.9768e-02,
    #       9.7028e-01,  3.0499e-02,  2.4327e-01, -9.7520e-02,  1.3332e-01,
    #      -1.4087e-01, -9.4116e-01,  5.2783e-01,  5.5581e-01, -6.8946e-01,
    #      -6.8912e-02,  2.2326e-01,  1.2420e-01,  1.6912e-01, -8.2000e-02,
    #       3.0850e-01,  2.3511e-02, -4.8805e-01,  1.4524e-01,  1.8462e-01,
    #       7.4131e-02,  2.5327e-01,  2.7908e-01, -1.6270e-01, -2.1301e-01,
    #       3.2760e-01,  5.5323e-01,  1.6963e-01,  3.4241e-03, -5.5854e-01,
    #      -5.6342e-01,  1.3993e-01,  4.5648e-02, -6.7479e-02,  2.5608e-01,
    #      -4.8739e-01, -2.7315e-01,  4.3747e-02,  4.5720e-01, -5.2685e-02,
    #      -4.8583e-01,  5.6369e-02,  1.2152e-01,  1.2591e-01,  5.1173e-02,
    #       2.2651e-02, -2.4076e-01, -4.4336e-01, -8.2901e-02,  2.7786e-01,
    #       2.3445e-01, -4.4337e-01,  5.4611e-02,  1.2179e-01, -1.8976e-01,
    #      -6.3923e-02, -6.2194e-02],
    #     [ 1.5923e+00,  7.8907e-01,  9.3234e-01,  2.5958e-03,  7.4501e-02,
    #      -4.1142e-01, -6.2064e-01, -1.4013e-01, -3.9269e-01, -3.3605e-02,
    #       2.9855e-02,  1.1648e-01, -1.9841e-01,  1.0612e-01, -5.6660e-02,
    #       9.6785e-01,  2.4450e-02,  2.4122e-01, -1.0391e-01,  1.2529e-01,
    #      -1.3911e-01, -9.5762e-01,  5.3554e-01,  5.5490e-01, -6.8035e-01,
    #      -8.6011e-02,  2.1864e-01,  1.2768e-01,  1.6646e-01, -8.1843e-02,
    #       3.0532e-01,  1.4512e-02, -4.8008e-01,  1.3870e-01,  1.9096e-01,
    #       6.8221e-02,  2.4176e-01,  2.6344e-01, -1.6764e-01, -2.0647e-01,
    #       3.1671e-01,  5.3998e-01,  1.6377e-01,  1.3754e-03, -5.4781e-01,
    #      -5.4963e-01,  1.4641e-01,  5.1760e-02, -7.3814e-02,  2.4241e-01,
    #      -4.6986e-01, -2.8396e-01,  3.9680e-02,  4.4490e-01, -4.5124e-02,
    #      -4.9316e-01,  4.9161e-02,  1.1173e-01,  1.2221e-01,  5.1617e-02,
    #       2.6101e-02, -2.3272e-01, -4.3735e-01, -7.7574e-02,  2.6570e-01,
    #       2.2987e-01, -4.3688e-01,  5.1705e-02,  1.1696e-01, -1.8714e-01,
    #      -5.6388e-02, -5.3614e-02],
    #     [ 1.6004e+00,  7.8749e-01,  9.3251e-01, -3.5837e-02,  5.9702e-02,
    #      -4.0712e-01, -6.3153e-01, -1.3912e-01, -3.9537e-01, -3.8402e-02,
    #       3.3139e-02,  1.1036e-01, -1.3880e-01,  1.0822e-01, -6.6264e-02,
    #       9.7113e-01,  2.2893e-02,  2.4089e-01, -1.0811e-01,  1.2273e-01,
    #      -1.3905e-01, -9.7440e-01,  5.3591e-01,  5.6279e-01, -6.7856e-01,
    #      -8.6346e-02,  2.1791e-01,  1.2513e-01,  1.6618e-01, -8.1820e-02,
    #       3.0713e-01,  1.5781e-02, -4.8610e-01,  1.3578e-01,  1.9026e-01,
    #       6.5493e-02,  2.4274e-01,  2.5998e-01, -1.7033e-01, -2.0635e-01,
    #       3.1509e-01,  5.3885e-01,  1.6181e-01,  1.3671e-03, -5.4627e-01,
    #      -5.4277e-01,  1.4821e-01,  5.6998e-02, -7.3062e-02,  2.3915e-01,
    #      -4.6706e-01, -2.8552e-01,  4.3505e-02,  4.4814e-01, -4.3142e-02,
    #      -4.9203e-01,  5.0110e-02,  1.1126e-01,  1.2253e-01,  4.9766e-02,
    #       2.6183e-02, -2.2894e-01, -4.3891e-01, -7.9625e-02,  2.6316e-01,
    #       2.2770e-01, -4.3245e-01,  5.5008e-02,  1.2143e-01, -1.8278e-01,
    #      -5.6483e-02, -5.2643e-02],
    #     [ 1.6017e+00,  7.9113e-01,  9.3809e-01, -6.7551e-02,  4.6256e-02,
    #      -4.0219e-01, -6.3103e-01, -1.4095e-01, -4.0049e-01, -4.2492e-02,
    #       3.7406e-02,  1.0725e-01, -7.3920e-02,  1.0542e-01, -7.7643e-02,
    #       9.7202e-01,  2.2354e-02,  2.4111e-01, -1.0547e-01,  1.2038e-01,
    #      -1.3830e-01, -9.8883e-01,  5.3362e-01,  5.6671e-01, -6.7497e-01,
    #      -8.5774e-02,  2.1655e-01,  1.2290e-01,  1.6546e-01, -8.1752e-02,
    #       3.0430e-01,  1.5775e-02, -4.8960e-01,  1.3168e-01,  1.8947e-01,
    #       6.4231e-02,  2.4691e-01,  2.5640e-01, -1.7084e-01, -2.0219e-01,
    #       3.1556e-01,  5.3456e-01,  1.6360e-01, -2.0048e-03, -5.4564e-01,
    #      -5.4182e-01,  1.4932e-01,  6.0489e-02, -7.2539e-02,  2.4137e-01,
    #      -4.6191e-01, -2.8725e-01,  3.4155e-02,  4.4766e-01, -3.8734e-02,
    #      -5.0761e-01,  5.0770e-02,  1.1271e-01,  1.2916e-01,  4.8807e-02,
    #       2.5224e-02, -2.3130e-01, -4.3803e-01, -8.1995e-02,  2.6426e-01,
    #       2.2759e-01, -4.3113e-01,  5.6952e-02,  1.2054e-01, -1.7994e-01,
    #      -5.5231e-02, -4.9082e-02],
    #     [ 1.5950e+00,  7.8904e-01,  9.3826e-01, -3.6576e-02,  5.9590e-02,
    #      -4.0528e-01, -6.2329e-01, -1.4581e-01, -3.9926e-01, -3.7969e-02,
    #       3.5045e-02,  1.1077e-01, -1.2400e-01,  1.0273e-01, -7.0544e-02,
    #       9.6620e-01,  1.6797e-02,  2.4125e-01, -1.0261e-01,  1.2276e-01,
    #      -1.3924e-01, -9.7538e-01,  5.3488e-01,  5.5833e-01, -6.7958e-01,
    #      -9.2604e-02,  2.1295e-01,  1.2727e-01,  1.6576e-01, -8.1800e-02,
    #       3.0442e-01,  1.2527e-02, -4.8231e-01,  1.3687e-01,  1.9193e-01,
    #       6.9017e-02,  2.4074e-01,  2.5518e-01, -1.6866e-01, -1.9987e-01,
    #       3.1764e-01,  5.3039e-01,  1.6599e-01, -1.1522e-03, -5.4175e-01,
    #      -5.4745e-01,  1.4645e-01,  5.6824e-02, -7.4909e-02,  2.4823e-01,
    #      -4.5869e-01, -2.8971e-01,  2.7926e-02,  4.4000e-01, -4.5069e-02,
    #      -5.1098e-01,  4.9779e-02,  1.0933e-01,  1.3024e-01,  5.0407e-02,
    #       2.7127e-02, -2.3223e-01, -4.3332e-01, -7.7113e-02,  2.6438e-01,
    #       2.2604e-01, -4.3552e-01,  5.2848e-02,  1.1502e-01, -1.8366e-01,
    #      -5.3910e-02, -4.9222e-02],
    #     [ 1.5957e+00,  8.0788e-01,  9.4834e-01, -1.0032e-01,  3.4486e-02,
    #      -3.9099e-01, -6.1836e-01, -1.4673e-01, -4.0106e-01, -4.7277e-02,
    #       4.1335e-02,  1.0779e-01,  3.9100e-03,  9.7966e-02, -8.8860e-02,
    #       9.5900e-01,  1.9642e-02,  2.4337e-01, -1.0685e-01,  1.1403e-01,
    #      -1.3578e-01, -9.9286e-01,  5.3129e-01,  5.6030e-01, -6.7628e-01,
    #      -9.3024e-02,  2.0549e-01,  1.2625e-01,  1.6194e-01, -7.9586e-02,
    #       2.9590e-01,  1.3397e-02, -4.8444e-01,  1.3130e-01,  1.8686e-01,
    #       6.8038e-02,  2.4167e-01,  2.4957e-01, -1.7291e-01, -1.9544e-01,
    #       3.0428e-01,  5.2003e-01,  1.6127e-01, -3.0937e-03, -5.3839e-01,
    #      -5.4331e-01,  1.5127e-01,  6.3756e-02, -7.6802e-02,  2.4234e-01,
    #      -4.4598e-01, -2.9270e-01,  9.4432e-03,  4.3445e-01, -3.5560e-02,
    #      -5.0477e-01,  3.9526e-02,  1.1015e-01,  1.3875e-01,  5.6716e-02,
    #       2.8294e-02, -2.3300e-01, -4.3126e-01, -8.1621e-02,  2.6405e-01,
    #       2.2596e-01, -4.2528e-01,  5.6517e-02,  1.1539e-01, -1.7770e-01,
    #      -5.2139e-02, -3.9383e-02],
    #     [ 1.5882e+00,  7.9877e-01,  9.4328e-01, -2.8720e-02,  6.2287e-02,
    #      -4.0260e-01, -6.0959e-01, -1.4748e-01, -3.9953e-01, -3.8967e-02,
    #       3.5521e-02,  1.1342e-01, -1.2244e-01,  1.0107e-01, -7.0909e-02,
    #       9.6160e-01,  2.1357e-02,  2.4391e-01, -1.0138e-01,  1.2151e-01,
    #      -1.3651e-01, -9.7141e-01,  5.3303e-01,  5.5471e-01, -6.6983e-01,
    #      -8.8017e-02,  2.1613e-01,  1.2814e-01,  1.6456e-01, -8.0381e-02,
    #       2.9939e-01,  1.2009e-02, -4.7984e-01,  1.3194e-01,  1.8968e-01,
    #       6.8013e-02,  2.3684e-01,  2.5566e-01, -1.6587e-01, -1.9949e-01,
    #       3.1261e-01,  5.2987e-01,  1.6465e-01, -2.3355e-03, -5.4320e-01,
    #      -5.5236e-01,  1.4478e-01,  5.5450e-02, -7.6929e-02,  2.4452e-01,
    #      -4.5820e-01, -2.8957e-01,  1.8180e-02,  4.3747e-01, -4.2283e-02,
    #      -5.0567e-01,  4.5314e-02,  1.0879e-01,  1.2915e-01,  5.2620e-02,
    #       2.7722e-02, -2.3599e-01, -4.3225e-01, -7.7019e-02,  2.6511e-01,
    #       2.2908e-01, -4.3480e-01,  5.2430e-02,  1.1357e-01, -1.8510e-01,
    #      -5.3361e-02, -4.7402e-02],
    #     [ 1.5888e+00,  8.1703e-01,  9.5593e-01, -8.2536e-02,  4.7360e-02,
    #      -3.9056e-01, -6.0633e-01, -1.5541e-01, -4.0785e-01, -4.3322e-02,
    #       4.0495e-02,  1.0820e-01, -4.6933e-03,  1.0861e-01, -9.3379e-02,
    #       9.6168e-01,  9.5170e-03,  2.4247e-01, -9.9628e-02,  1.1271e-01,
    #      -1.3622e-01, -9.8448e-01,  5.3791e-01,  5.5485e-01, -6.5830e-01,
    #      -1.0166e-01,  2.1111e-01,  1.2765e-01,  1.6020e-01, -8.0440e-02,
    #       2.9217e-01,  6.0119e-03, -4.7595e-01,  1.2242e-01,  1.9002e-01,
    #       5.7588e-02,  2.3393e-01,  2.4151e-01, -1.7059e-01, -1.8763e-01,
    #       3.0400e-01,  5.1543e-01,  1.6263e-01, -5.2092e-03, -5.3681e-01,
    #      -5.4848e-01,  1.4767e-01,  6.1067e-02, -8.5293e-02,  2.4911e-01,
    #      -4.4561e-01, -2.9968e-01, -1.0991e-03,  4.3592e-01, -4.0780e-02,
    #      -5.1197e-01,  5.0462e-02,  1.0212e-01,  1.5047e-01,  4.5822e-02,
    #       3.3164e-02, -2.3132e-01, -4.2680e-01, -7.8209e-02,  2.6201e-01,
    #       2.2518e-01, -4.2874e-01,  5.3289e-02,  1.1230e-01, -1.8014e-01,
    #      -4.9768e-02, -3.7934e-02]], device='cuda:0')
    vertices, faces = smpl2mesh.convert_smpl_to_mesh(rot_motions, current_motions)
    if all_faces is None:
        all_faces = faces
    
    all_vertices.append(vertices)

    if torch.is_tensor(all_faces):
        all_faces = all_faces.cpu().numpy()

    # Save each sample to its own directory
    base_output_dir = './hanyu'
    for i, vertices in enumerate(all_vertices):
        save_mesh(vertices, all_faces, base_output_dir, output_idx=i)  # Use sequential index i instead of sorted_idx[i]
    
        

if __name__ == "__main__":
    # process_motion("./smpl_params.json", "./predictions/joints3d.npy", "cuda", [25,17,33,7,24])
    # main()
    # smpl_to_mesh("./smpl_params.json", "./predictions/joints3d.npy", "cuda", [0])
    process_motion("./smpl_params.json", "./predictions/joints3d.npy", "cuda", [17])