Files
cvpr_2023/data/preprocessing.py
2023-08-24 11:36:22 +00:00

1092 lines
45 KiB
Python

import os
import sys
import argparse
parser = argparse.ArgumentParser()
# parser.add_argument("-f", "--folder", help = "end of range")
parser.add_argument("-s", "--start", help = "start of range", type=int, default=0)
parser.add_argument("-e", "--end", help = "end of range", type=int, default=1)
parser.add_argument("-g", "--gpu", help = "gpu id", default='0')
parser.add_argument("-d", "--debug", help = "end of range", default=False, action='store_true')
args = parser.parse_args()
os.environ["CUDA_DEVICE_ORDER"]="PCI_BUS_ID"
os.environ["CUDA_VISIBLE_DEVICES"] = args.gpu
os.environ["CUDA_LAUNCH_BLOCKING"] = '1'
import math
import shutil
import warnings
import tables as tb
import numpy as np
import scipy.io as sio
import trimesh as tm
from tqdm import tqdm
from tables import NaturalNameWarning
warnings.filterwarnings('ignore', category=NaturalNameWarning)
import plotly.graph_objects as go
import torch
from scipy.spatial.transform import Rotation as R
sys.path.append(os.path.dirname(os.path.abspath(__file__)) + '/..')
from data.cloth3d_io import readPC2, loadInfo, writePC2, readOBJ, quads2tris, readPC2Frame
from data.utils import Frame
from smpl.smpl_torch import SMPL
from custom_utils.custom_utils import _maskFaces, remove_long_edges
def create_extras_file(folder):
# create a new pytables file
root = '/'.join(folder.split('/')[:-1])
type = folder.split('/')[-1]
h5file = tb.open_file(os.path.join(root, f'{type}_extras_test.h5'), mode='w', title='Extras')
frames = []
with open(os.path.join(folder, 'frames_all.txt'), 'r') as f:
lines = f.readlines()
lines = [line.strip() for line in lines]
frames = lines
for frame in tqdm(frames[:1000]):
# add a new empty group to the root group for each frame
id, frame_nr, garment = frame.split()
if not id in h5file.root:
h5file.create_group('/', id)
if not frame_nr in h5file.root[id]:
h5file.create_group(f'/{id}', frame_nr)
h5file.create_group(f'/{id}/{frame_nr}', f'{garment}')
h5file.close()
def deorient(verts, pose):
rodr = smpl.rodrigues(torch.tensor(pose.T, device=smpl.device).reshape(-1, 1, 3)).reshape(verts.shape[0], -1, 3, 3).cpu().numpy()
rotated = np.zeros_like(verts)
for frame in range(verts.shape[0]):
r = R.from_matrix(rodr[frame, 0, :, :])
rotated[frame] = r.apply(verts[frame], inverse=True)
return rotated
def create_mesh_posed_no_orient_and_mask(folder, folder_reg, out_folder):
ids = sorted(os.listdir(folder))
os.makedirs(os.path.join(out_folder, 'mesh_posed_no_orient'), exist_ok=True)
os.makedirs(os.path.join(out_folder, 'mesh_mask'), exist_ok=True)
ids = ['00021']
for id in tqdm(ids):
# id = '01467'
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
info = loadInfo(os.path.join(folder, id, 'info.mat'))
for garment in garments:
# if os.path.exists(os.path.join(out_folder, f'{id}_{garment}.pc16')):
# continue
verts = readPC2(os.path.join(garment_dir, garment + '.pc16'), True)['V']
# if info['poses'].shape[1] == verts.shape[0]:
# continue
reg_data = sio.loadmat(os.path.join(folder_reg, id, garment + '_weights_fixed.mat'))
verts = (verts[:, reg_data['F'], :] * reg_data['W'][None, :, :, None]).sum(axis=2)
mask_idx = sio.loadmat(os.path.join(folder_reg, id, garment + '_mask.mat'))['mask_idx'].reshape((-1)) - 1
mask = np.zeros((14475), dtype=bool)
mask[mask_idx] = True
if info['poses'].shape[1] != verts.shape[0]:
assert False, 'Somethign wrong here'
info['poses'] = info['poses'][:, :verts.shape[0]]
verts = deorient(verts, info['poses'])
# # plot as scatter plot with plotly
# import plotly.graph_objects as go
# frame = 5
# fig = go.Figure(data=[go.Scatter3d(x=verts[frame,:,0], y=verts[frame,:,2], z=verts[frame,:,1], mode='markers', marker=dict(size=1))])
# fig.show()
writePC2(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garment}.pc16'), verts, True)
np.save(os.path.join(out_folder, 'mesh_mask', f'{id}_{garment}.npy'), mask)
def create_pose_shape(folder, out_folder):
ids = sorted(os.listdir(folder))
os.makedirs(os.path.join(out_folder, 'pose'), exist_ok=True)
os.makedirs(os.path.join(out_folder, 'shape'), exist_ok=True)
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
info = loadInfo(os.path.join(folder, id, 'info.mat'))
shape = np.concatenate([info['shape'], np.asarray([info['gender']])]).astype(np.float32)
np.save(os.path.join(out_folder, 'pose', f'{id}.npy'), info['poses'].T.astype(np.float32))
np.save(os.path.join(out_folder, 'shape', f'{id}.npy'), shape)
def create_mesh_static(folder, out_folder):
ids = sorted(os.listdir(folder))
os.makedirs(os.path.join(out_folder, 'mesh_static'), exist_ok=True)
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
for garment in garments:
if os.path.exists(os.path.join(out_folder, f'{id}_{garment}.pc16')):
continue
verts_static, _, _, _ = readOBJ(os.path.join(garment_dir, f'{garment}.obj'))
reg_data = sio.loadmat(os.path.join(folder_reg, id, garment + '_weights_fixed.mat'))
verts_static = (verts_static[reg_data['F'], :] * reg_data['W'][:, :, None]).sum(axis=1).astype(np.float32)
# rotate 90 degrees around x axis
verts_static = np.matmul(verts_static, np.array([[1,0,0],[0,0,-1],[0,1,0]]))
# fig = go.Figure(data=[go.Scatter3d(x=verts_static[:,0], y=verts_static[:,2], z=verts_static[:,1], mode='markers', marker=dict(size=1))])
# fig.update_layout(scene_aspectmode='cube')
# fig.update_layout(scene=dict(xaxis=dict(range=[-1,1]), yaxis=dict(range=[-1,1]), zaxis=dict(range=[-1,1])))
# fig.show()
np.save(os.path.join(out_folder, 'mesh_static', f'{id}_{garment}.npy'), verts_static.astype(np.float32))
def create_mesh_body_posed_no_orient(folder, out_folder):
ids = sorted(os.listdir(folder))
os.makedirs(os.path.join(out_folder, 'mesh_body_posed_no_orient'), exist_ok=True)
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
info = sio.loadmat(os.path.join(folder, id, 'info.mat'))
pose, shape, gender = info['poses'], info['shape'], info['gender']
# if pose.shape[0] == 72:
pose = np.transpose(pose, [1, 0]).astype(np.float32)
pose[:, :3] = 0
beta = np.squeeze(np.concatenate((shape, gender), axis=1)).astype(np.float32)
smpl = SMPL(path='smpl', device='cuda', batch_size=pose.shape[0])
T = smpl(torch.tensor(pose, device=smpl.device), torch.tensor(np.tile(beta[np.newaxis, :], [pose.shape[0], 1]), device=smpl.device))[0]
T = T.cpu().numpy()
writePC2(os.path.join(out_folder, 'mesh_body_posed_no_orient', f'{id}.pc16'), T, True)
# verts = readPC2(os.path.join(out_folder, 'mesh_body_posed_no_orient', f'{id}.pc16'), True)['V']
# # plot as scatter plot with plotly
# import plotly.graph_objects as go
# frame = 5
# fig = go.Figure(data=[go.Scatter3d(x=verts[frame,:,0], y=verts[frame,:,2], z=verts[frame,:,1], mode='markers', marker=dict(size=1))])
# fig.show()
pass
def calculate_normals(vertices, faces):
normals = []
for i in range(vertices.shape[0]):
mesh = tm.Trimesh(vertices=vertices[i], faces=faces, process=False, validate=False)
normals.append(mesh.vertex_normals)
return np.stack(normals)
def create_mesh_normals(folder, out_folder):
ids = sorted(os.listdir(folder))
os.makedirs(os.path.join(out_folder, 'mesh_normals'), exist_ok=True)
# F = np.load('smpl/smpl_faces.npy')
# F_skirt = np.load('smpl/smpl_faces_skirt.npy')
# ids = ['00438']
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
info = sio.loadmat(os.path.join(folder, id, 'info.mat'))
for garment in garments:
if os.path.exists(os.path.join(out_folder, f'{id}_{garment}.pc16')):
continue
verts = readPC2(os.path.join(garment_dir, garment + '.pc16'), True)['V']
verts = deorient(verts, info['poses'][:, :verts.shape[0]])
_, faces, _, _ = readOBJ(os.path.join(garment_dir, garment + '.obj'))
faces = quads2tris(faces)
normals = calculate_normals(verts, faces.astype(np.int32))
reg_data = sio.loadmat(os.path.join(folder_reg, id, garment + '_weights_fixed.mat'))
normals = (normals[:, reg_data['F'], :] * reg_data['W'][None, :, :, None]).sum(axis=2)
writePC2(os.path.join(out_folder, 'mesh_normals', f'{id}_{garment}.pc16'), normals, True)
# normals = readPC2(os.path.join(out_folder, 'mesh_normals', f'{id}_{garment}.pc16'), True)['V']
# colors = np.clip(np.abs(normals), 0, 1)
# verts = (verts[:, reg_data['F'], :] * reg_data['W'][None, :, :, None]).sum(axis=2)
# # plot as scatter plot with plotly
# import plotly.graph_objects as go
# frame = 5
# fig = go.Figure(data=[go.Scatter3d(
# x=verts[frame,:,0],
# y=verts[frame,:,2],
# z=verts[frame,:,1],
# mode='markers',
# marker=dict(
# size=1,
# color=normals[frame,:,:],
# colorscale='Viridis',
# opacity=0.8
# )
# )])
# moved_verts = verts + 0.05 * normals
# # Create the scatter plot for the moved vertices
# fig.add_trace(go.Scatter3d(
# x=moved_verts[frame,:,0],
# y=moved_verts[frame,:,2],
# z=moved_verts[frame,:,1],
# mode='markers',
# marker=dict(
# size=1,
# color='red',
# opacity=0.8
# )
# ))
# fig.show()
# # create a plotly mesh plot for verts and faces
# fig = go.Figure(data=[go.Mesh3d(x=verts[frame,:,0], y=verts[frame,:,2], z=verts[frame,:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
# fig.show()
pass
def create_mesh_normals_cape(folder, out_folder):
frames = os.listdir(os.path.join(folder, 'mesh_posed'))
os.makedirs(os.path.join(folder, 'mesh_normals'), exist_ok=True)
F = np.load('smpl/smpl_faces_orig.npy')
# F_skirt = np.load('smpl/smpl_faces_skirt.npy')
for frame in tqdm(frames):
id, frame_nr = frame.split('.')[:2]
verts = np.load(os.path.join(folder, 'mesh_posed', f'{id}.{frame_nr}.npz'))['mesh_posed']
normals = calculate_normals(verts[None,:,:], F)[0]
np.savez_compressed(os.path.join(folder, 'mesh_normals', f'{id}.{frame_nr}.npz'), mesh_normals=normals)
# normals = readPC2(os.path.join(out_folder, 'mesh_normals', f'{id}_{garment}.pc16'), True)['V']
# colors = np.clip(np.abs(normals), 0, 1)
# verts = (verts[:, reg_data['F'], :] * reg_data['W'][None, :, :, None]).sum(axis=2)
# plot as scatter plot with plotly
# import plotly.graph_objects as go
# frame = 5
# fig = go.Figure(data=[go.Scatter3d(
# x=verts[:,0],
# y=verts[:,2],
# z=verts[:,1],
# mode='markers',
# marker=dict(
# size=1,
# color=normals[:,:],
# colorscale='Viridis',
# opacity=0.8
# )
# )])
# moved_verts = verts + 0.05 * normals
# # Create the scatter plot for the moved vertices
# fig.add_trace(go.Scatter3d(
# x=moved_verts[:,0],
# y=moved_verts[:,2],
# z=moved_verts[:,1],
# mode='markers',
# marker=dict(
# size=1,
# color='red',
# opacity=0.8
# )
# ))
# fig.show()
# # create a plotly mesh plot for verts and faces
# fig = go.Figure(data=[go.Mesh3d(x=verts[frame,:,0], y=verts[frame,:,2], z=verts[frame,:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
# fig.show()
pass
def verify_registration_ans_mask(folder, out_folder):
ids = sorted(os.listdir(folder))
for id in ids:
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
for garment in garments:
vertices = readPC2(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garment}.pc16'), True)['V']
mask = np.load(os.path.join(out_folder, 'mesh_mask', f'{id}_{garment}.npy'))
if mask.sum() == vertices.shape[1]:
print(id, garment)
pass
def create_mesh_unposed_no_shape(folder, folder_reg, out_folder, start=0, end=1):
ids = sorted(os.listdir(folder))[start:end]
os.makedirs(os.path.join(out_folder, 'mesh_unposed_no_shape'), exist_ok=True)
F = np.load('smpl/smpl_faces.npy')
# F_skirt = np.load('smpl/smpl_faces_skirt.npy')
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
# info = sio.loadmat(os.path.join(folder, id, 'info.mat'))
pose = np.load(os.path.join(out_folder, 'pose', f'{id}.npy'))
shape = np.tile(np.load(os.path.join(out_folder, 'shape', f'{id}.npy'))[None,:], [pose.shape[0],1])
pose = torch.tensor(pose, dtype=torch.float32, device='cuda')
shape = torch.tensor(shape, dtype=torch.float32, device='cuda')
smpl = SMPL(path='smpl', device='cuda', batch_size=pose.shape[0])
for garment in garments:
if os.path.exists(os.path.join(out_folder, f'{id}_{garment}.pc16')):
continue
mesh_static = np.load(os.path.join(out_folder, 'mesh_static', f'{id}_{garment}.npy'))
mesh_posed = readPC2(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garment}.pc16'), True)['V']
mask = np.load(os.path.join(out_folder, 'mesh_mask', f'{id}_{garment}.npy'))
# mask_idx = np.where(mask)[0]
pose[:,:3] = 0
# pose = pose[:10]
# shape = shape[:10]
# mesh_posed = mesh_posed[:10]
unposed = np.zeros((14475, 3), dtype=np.float32)
unposed[mask] = mesh_static
unposed = torch.tensor(np.tile(unposed[None,:,:], [mesh_posed.shape[0],1,1]), dtype=torch.float32, device='cuda')
unposed.requires_grad = True
mesh_posed = torch.tensor(mesh_posed, dtype=torch.float32, device='cuda')
optimizer = torch.optim.Adam([unposed], lr=0.01)
# verts_1 = unposed[0].cpu().detach().numpy()[mask]
# _, faces = _maskFaces(np.zeros((14475, 3)), F, mask)
# fig = go.Figure(data=[go.Mesh3d(x=verts_1[:,0], y=verts_1[:,2], z=verts_1[:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
# fig.update_layout(scene = dict(
# xaxis = dict(range=[-1,1],),
# yaxis = dict(range=[-1,1],),
# zaxis = dict(range=[-1,1],),),)
# fig.update_layout(scene_aspectmode='cube')
# fig.show()
# verts_2 = mesh_posed[0].cpu().detach().numpy()
# fig = go.Figure(data=[go.Mesh3d(x=verts_2[:,0], y=verts_2[:,2], z=verts_2[:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
# fig.update_layout(scene = dict(
# xaxis = dict(range=[-1,1],),
# yaxis = dict(range=[-1,1],),
# zaxis = dict(range=[-1,1],),),)
# fig.update_layout(scene_aspectmode='cube')
# fig.show()
# zero_body = smpl(torch.zeros_like(pose), torch.zeros_like(shape))[0]
# verts_3 = smpl(pose, shape, zero_body)[0][0].cpu().detach().numpy()
# # verts_3 = zero_body[0].cpu().detach().numpy()
# faces_3 = F
# fig = go.Figure(data=[go.Mesh3d(x=verts_3[:,0], y=verts_3[:,2], z=verts_3[:,1], i=faces_3[:,0], j=faces_3[:,1], k=faces_3[:,2], color='lightpink', opacity=1)])
# fig.update_layout(scene = dict(
# xaxis = dict(range=[-1,1],),
# yaxis = dict(range=[-1,1],),
# zaxis = dict(range=[-1,1],),),)
# fig.update_layout(scene_aspectmode='cube')
# fig.show()
for i in range(5000):
optimizer.zero_grad()
pred = smpl(pose, shape, unposed)[0]
loss : torch.Tensor = ((pred[:,mask,:] - mesh_posed)**2).sum()
# Backward pass
loss.backward()
optimizer.step()
with torch.inference_mode():
euclidean_error = torch.sqrt(((pred[:,mask,:] - mesh_posed)**2).sum(-1)).mean()
# Print the loss
if i % 50 == 0:
print(f"it: {i} loss: {loss:.8f} euclidean_error: {euclidean_error:.8f}")
if euclidean_error < 0.0000001:
break
if euclidean_error < 0.0000005 and i > 2000:
break
if euclidean_error < 0.000001 and i > 4000:
break
unposed = unposed.detach().cpu().numpy()
gender = int(shape[0].cpu().numpy()[-1] > 0)
shape_offsets = torch.tensordot(shape[:,:10], smpl.shapedirs[gender], dims=[[1], [2]])
shape_offsets = shape_offsets.cpu().numpy()[:,smpl.to_keep,:]
unshaped = (unposed - shape_offsets)[:,mask,:]
writePC2(os.path.join(out_folder, 'mesh_unposed_no_shape', f'{id}_{garment}.pc16'), unshaped, True)
# verts = unposed[:,mask,:]
# verts = unshaped
# _, faces = _maskFaces(np.zeros((14475, 3)), F, mask)
# frame = 9
# fig = go.Figure(data=[go.Mesh3d(x=verts[frame,:,0], y=verts[frame,:,2], z=verts[frame,:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
# fig.update_layout(scene = dict(
# xaxis = dict(range=[-1,1],),
# yaxis = dict(range=[-1,1],),
# zaxis = dict(range=[-1,1],),),)
# fig.update_layout(scene_aspectmode='cube')
# fig.show()
# verts = pred.detach().cpu().numpy()[:,mask,:]
# frame = 9
# fig = go.Figure(data=[go.Mesh3d(x=verts[frame,:,0], y=verts[frame,:,2], z=verts[frame,:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
# fig.update_layout(scene = dict(
# xaxis = dict(range=[-1,1],),
# yaxis = dict(range=[-1,1],),
# zaxis = dict(range=[-1,1],),),)
# fig.update_layout(scene_aspectmode='cube')
# fig.show()
pass
F_coll = torch.tensor(np.load("smpl/smpl_faces.npy"), device='cuda')
F_coll_skirt = torch.tensor(np.load("smpl/smpl_faces_skirt.npy"), device='cuda')
F_norm = torch.tensor(np.tile(np.load("smpl/smpl_faces.npy")[None,:,:], [1,1,1]), device='cuda')
F_norm_skirt = torch.tensor(np.tile(np.load("smpl/smpl_faces_skirt.npy")[None,:,:], [1,1,1]), device='cuda')
from scipy.spatial import KDTree
from pytorch3d.structures import Meshes
from torch_cluster import knn
def _nearest_neighbour(V: torch.Tensor, B: torch.Tensor):
# flatten V and B along the batch dimension, create a batch_x and batch_y variable to restore the batch dimension after the nearest neighbour search using pytorch_geomtry knn function
batch_size = V.shape[0]
vertices_count = V.shape[1]
batch_x = torch.arange(batch_size, device=V.get_device()).repeat_interleave(vertices_count)
batch_y = torch.arange(batch_size, device=V.get_device()).repeat_interleave(14475)
V = V.reshape(-1, V.shape[-1])
B = B.reshape(-1, B.shape[-1])
idx = knn(B.to(V.dtype), V, k=1, batch_x=batch_y, batch_y=batch_x)[1]
idx = (idx - batch_x * vertices_count).reshape(batch_size, vertices_count)
return idx
def collision_loss(V: torch.Tensor, B: torch.Tensor, thr: float = .004):
F_norm_local = F_norm
mesh = Meshes(B, F_norm_local)
B_vn = torch.stack(mesh.verts_normals_list())
# compute correspondences
idx = _nearest_neighbour(V, B)
# compute loss
D = V - torch.stack([B[i,idx[i],:] for i in range(V.shape[0])])
b_vn = torch.stack([B_vn[i,idx[i],:] for i in range(V.shape[0])])
dot = torch.einsum('abc,abc->ab', D, b_vn)
thresholded = torch.minimum(dot - thr, torch.zeros_like(dot))
loss = torch.sum(thresholded ** 2, axis=-1)
return loss
def area_loss(pred, gt, faces):
"""
Calculates the area loss between predicted and ground truth meshes.
Args:
pred (torch.Tensor): Predicted mesh vertices of shape (batch_size, num_vertices, 3).
gt (torch.Tensor): Ground truth mesh vertices of shape (batch_size, num_vertices, 3).
faces (torch.Tensor): Mesh faces of shape (num_faces, 3).
Returns:
torch.Tensor: Area loss between predicted and ground truth meshes.
"""
# Calculate the area of each face for predicted and ground truth meshes
pred_faces = pred[:, faces, :]
gt_faces = gt[:, faces, :]
pred_edges1 = pred_faces[:, :, 1, :] - pred_faces[:, :, 0, :]
pred_edges2 = pred_faces[:, :, 2, :] - pred_faces[:, :, 0, :]
gt_edges1 = gt_faces[:, :, 1, :] - gt_faces[:, :, 0, :]
gt_edges2 = gt_faces[:, :, 2, :] - gt_faces[:, :, 0, :]
pred_cross = torch.cross(pred_edges1, pred_edges2, dim=2)
gt_cross = torch.cross(gt_edges1, gt_edges2, dim=2)
pred_area = 0.5 * torch.norm(pred_cross, dim=2)
gt_area = 0.5 * torch.norm(gt_cross, dim=2)
# Calculate the area loss
area_loss = torch.mean(torch.abs(pred_area - gt_area))
return area_loss
def create_mesh_unposed_no_shape_static(folder, folder_reg, out_folder, start=0, end=1):
ids = sorted(os.listdir(folder))[start:end]
os.makedirs(os.path.join(out_folder, 'mesh_static_unposed_no_shape'), exist_ok=True)
F = np.load('smpl/smpl_faces.npy')
# F_skirt = np.load('smpl/smpl_faces_skirt.npy')
ids = ['00005']
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
shape = np.load(os.path.join(out_folder, 'shape', f'{id}.npy'))[None,:]
shape = torch.tensor(shape, dtype=torch.float32, device='cuda')
smpl = SMPL(path='smpl', device='cuda', batch_size=1)
pose = np.zeros((24, 3), np.float32)
pose[1,2] = .15
pose[2,2] = -.15
pose = torch.tensor(pose.flatten()[None,:], dtype=torch.float32, device='cuda')
for garment in garments:
if os.path.exists(os.path.join(out_folder, f'{id}_{garment}.pc16')):
continue
mesh_static, faces, _, _ = readOBJ(os.path.join(folder, id, f'{garment}.obj'))
faces = quads2tris(faces)
mesh_static = np.matmul(mesh_static, np.array([[1,0,0],[0,0,-1],[0,1,0]]))
unposed = mesh_static
unposed = torch.tensor(unposed[None,:,:], dtype=torch.float32, device='cuda')
unposed.requires_grad = True
mesh_static = torch.tensor(mesh_static[None,:,:], dtype=torch.float32, device='cuda')
optimizer = torch.optim.Adam([unposed], lr=0.0001)
for i in range(10000):
optimizer.zero_grad()
body = smpl(pose, shape)[0]
c_loss = collision_loss(unposed, body)
a_loss = area_loss(unposed, mesh_static, faces)
loss : torch.Tensor = c_loss + a_loss
# Backward pass
loss.backward()
optimizer.step()
pose = pose / 1.0005
# Print the loss
if i % 50 == 0:
pose_sum = np.abs(pose.detach().cpu().numpy()).sum().item()
loss_str = loss.detach().cpu().numpy()[0]
c_loss_str = c_loss.detach().cpu().numpy()[0]
a_loss_str = a_loss.detach().cpu().numpy()
print(f"it: {i} loss: {loss_str:.10f} c_loss: {c_loss_str:.10f}, a_loss: {a_loss_str:.8f}, pose: {pose_sum:.8f}")
unposed = unposed.detach().cpu().numpy()
body = body.detach().cpu().numpy()
gender = int(shape[0].cpu().numpy()[-1] > 0)
shape_offsets = torch.tensordot(shape[:,:10], smpl.shapedirs[gender], dims=[[1], [2]])
shape_offsets = shape_offsets.cpu().numpy()[:,smpl.to_keep,:]
unshaped = (unposed - shape_offsets)
writePC2(os.path.join(out_folder, 'mesh_static_unposed_no_shape', f'{id}_{garment}.pc16'), unshaped, True)
verts = unposed
# verts = unshaped
frame = 0
fig = go.Figure(data=[go.Mesh3d(x=verts[frame,:,0], y=verts[frame,:,2], z=verts[frame,:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
# add body mesh
fig.add_trace(go.Mesh3d(x=body[frame,:,0], y=body[frame,:,2], z=body[frame,:,1], i=F[:,0], j=F[:,1], k=F[:,2], color='lightblue', opacity=1))
fig.update_layout(scene = dict(
xaxis = dict(range=[-1,1],),
yaxis = dict(range=[-1,1],),
zaxis = dict(range=[-1,1],),),)
fig.update_layout(scene_aspectmode='cube')
fig.show()
# verts = pred.detach().cpu().numpy()[:,mask,:]
# frame = 9
# fig = go.Figure(data=[go.Mesh3d(x=verts[frame,:,0], y=verts[frame,:,2], z=verts[frame,:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
# fig.update_layout(scene = dict(
# xaxis = dict(range=[-1,1],),
# yaxis = dict(range=[-1,1],),
# zaxis = dict(range=[-1,1],),),)
# fig.update_layout(scene_aspectmode='cube')
# fig.show()
pass
def create_frames_file(folder, out_folder, split=0.9):
ids = os.listdir(folder)
frames_non_skirt = []
frames_skirt = []
ids_non_skirt = set()
ids_skirt = set()
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
info = sio.loadmat(os.path.join(folder, id, 'info.mat'))
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
frames = info['poses'].shape[1]
assert info['poses'].shape[0] == 72
for garment in garments:
for i in range(frames):
if garment == 'Skirt' or garment == 'Dress':
frames_skirt.append(Frame(id, i, garment))
ids_skirt.add(id)
else:
frames_non_skirt.append(Frame(id, i, garment))
ids_non_skirt.add(id)
nr_train_non_skirt = int(len(ids_non_skirt) * split)
nr_train_skirt = int(len(ids_skirt) * split)
ids_skirt = list(ids_skirt)
ids_non_skirt = list(ids_non_skirt)
with open(os.path.join(out_folder, 'frames_train.txt'), 'w') as f:
for frame in frames_non_skirt:
if frame.id in ids_non_skirt[:nr_train_non_skirt]:
f.write(f'{frame.id} {frame.frame_nr} {frame.garment}\n')
with open(os.path.join(out_folder, 'frames_train_skirt.txt'), 'w') as f:
for frame in frames_skirt:
if frame.id in ids_skirt[:nr_train_skirt]:
f.write(f'{frame.id} {frame.frame_nr} {frame.garment}\n')
with open(os.path.join(out_folder, 'frames_valid.txt'), 'w') as f:
for frame in frames_non_skirt:
if frame.id in ids_non_skirt[nr_train_non_skirt:]:
f.write(f'{frame.id} {frame.frame_nr} {frame.garment}\n')
with open(os.path.join(out_folder, 'frames_valid_skirt.txt'), 'w') as f:
for frame in frames_skirt:
if frame.id in ids_skirt[nr_train_skirt:]:
f.write(f'{frame.id} {frame.frame_nr} {frame.garment}\n')
def create_frames_file_test(folder, out_folder):
ids = os.listdir(folder)
frames_non_skirt = []
frames_skirt = []
ids_non_skirt = set()
ids_skirt = set()
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
info = sio.loadmat(os.path.join(folder, id, 'info.mat'))
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
frames = info['poses'].shape[1]
assert info['poses'].shape[0] == 72
for garment in garments:
for i in range(frames):
if garment == 'Skirt' or garment == 'Dress':
frames_skirt.append(Frame(id, i, garment))
ids_skirt.add(id)
else:
frames_non_skirt.append(Frame(id, i, garment))
ids_non_skirt.add(id)
ids_skirt = list(ids_skirt)
ids_non_skirt = list(ids_non_skirt)
with open(os.path.join(out_folder, 'frames_test.txt'), 'w') as f:
for frame in frames_non_skirt:
if frame.id in ids_non_skirt:
f.write(f'{frame.id} {frame.frame_nr} {frame.garment}\n')
with open(os.path.join(out_folder, 'frames_test_skirt.txt'), 'w') as f:
for frame in frames_skirt:
if frame.id in ids_skirt:
f.write(f'{frame.id} {frame.frame_nr} {frame.garment}\n')
def create_frames_file_partial(folder, out_folder, split=0.9, part=0.1):
ids = os.listdir(folder)
frames_non_skirt = []
frames_skirt = []
ids_non_skirt = set()
ids_skirt = set()
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
info = sio.loadmat(os.path.join(folder, id, 'info.mat'))
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
frames = info['poses'].shape[1]
assert info['poses'].shape[0] == 72
for garment in garments:
for i in range(frames):
if garment == 'Skirt' or garment == 'Dress':
frames_skirt.append(Frame(id, i, garment))
ids_skirt.add(id)
else:
frames_non_skirt.append(Frame(id, i, garment))
ids_non_skirt.add(id)
nr_train_non_skirt = int(len(ids_non_skirt) * split * part)
nr_train_skirt = int(len(ids_skirt) * split * part)
ids_skirt = list(ids_skirt)
ids_non_skirt = list(ids_non_skirt)
with open(os.path.join(out_folder, f'frames_train_{int(part*100)}p.txt'), 'w') as f:
for frame in frames_non_skirt:
if frame.id in ids_non_skirt[:nr_train_non_skirt]:
f.write(f'{frame.id} {frame.frame_nr} {frame.garment}\n')
with open(os.path.join(out_folder, f'frames_train_skirt_{int(part*100)}p.txt'), 'w') as f:
for frame in frames_skirt:
if frame.id in ids_skirt[:nr_train_skirt]:
f.write(f'{frame.id} {frame.frame_nr} {frame.garment}\n')
def check_irregular_poses(folder, folder_reg, out_folder):
for i in range(100, 200, 5):
frame: Frame = Frame('01512', i, 'Dress')
mesh_posed = readPC2Frame(os.path.join(out_folder, 'mesh_posed_no_orient', f'{frame.id}_{frame.garment}.pc16'), frame.frame_nr, True)
# mesh_static = np.load(f'{out_folder}/mesh_static/{frame.id}_{frame.garment}.npy')
mesh_mask = np.load(f'{out_folder}/mesh_mask/{frame.id}_{frame.garment}.npy')
mesh_body_posed = readPC2(os.path.join(out_folder, 'mesh_body_posed_no_orient', f'{frame.id}.pc16'), True)['V']
mesh_body_posed = mesh_body_posed[::2][frame.frame_nr]
F = np.load('smpl/smpl_faces_skirt.npy')
_, faces = _maskFaces(np.zeros((14475, 3)), F, mesh_mask)
fig = go.Figure(data=[go.Mesh3d(x=mesh_posed[:,0], y=mesh_posed[:,2], z=mesh_posed[:,1], i=faces[:,0], j=faces[:,1], k=faces[:,2], color='lightpink', opacity=1)])
fig.add_trace(go.Mesh3d(x=mesh_body_posed[:,0], y=mesh_body_posed[:,2], z=mesh_body_posed[:,1], i=F[:,0], j=F[:,1], k=F[:,2], color='lightblue', opacity=1))
fig.update_layout(scene = dict(
xaxis = dict(range=[-1,1],),
yaxis = dict(range=[-1,1],),
zaxis = dict(range=[-1,1],),),)
fig.update_layout(scene_aspectmode='cube')
fig.show()
pass
def calculate_average(folder, out_folder, frames_file='frames_train_skirt.txt'):
from custom_utils.custom_utils import UV2Mesh
import plotly.express as ex
import plotly.graph_objects as go
frames = []
with open(os.path.join(out_folder, frames_file), 'r') as f:
for line in f:
line = line.strip()
id, frame_nr, garment = line.split(' ')
frames.append(Frame(id, int(frame_nr), garment))
uv_sum = np.zeros((512, 256, 3), dtype=np.float32)
mask_sum = np.zeros((512, 256), dtype=np.float32)
for frame in tqdm(frames):
uv = np.load(os.path.join(out_folder, 'uv_unposed_no_shape', f'{frame.id}_{frame.frame_nr}_{frame.garment}.npz'))['uv_unposed']
mask = np.load(os.path.join(out_folder, 'uv_mask', f'{frame.id}_{frame.garment}.npz'))['uv_mask']
uv_sum += uv
mask_sum += mask
mask_sum[mask_sum == 0] = 1
avg_garment = uv_sum / mask_sum[:, :, None]
avg_mesh = UV2Mesh()(torch.from_numpy(avg_garment.transpose(2,0,1))[None,:,:,:]).numpy()[0]
F = np.load('smpl/smpl_faces.npy')
fig = go.Figure(data=[go.Mesh3d(x=avg_mesh[:,0], y=avg_mesh[:,2], z=avg_mesh[:,1], i=F[:,0], j=F[:,1], k=F[:,2], color='lightpink', opacity=1)])
fig.update_layout(scene = dict(
xaxis = dict(range=[-1,1],),
yaxis = dict(range=[-1,1],),
zaxis = dict(range=[-1,1],),),)
fig.update_layout(scene_aspectmode='cube')
fig.show()
np.save('custom_data/avg/train_skirt_no_shape_avg_uv.npy', avg_garment)
def remove_irregular_poses(folder, folder_reg, out_folder):
ids = sorted(os.listdir(folder))
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
info = loadInfo(os.path.join(folder, id, 'info.mat'))
for garment in garments:
verts_count = readPC2(os.path.join(garment_dir, garment + '.pc16'), True)['V'].shape[0]
if info['poses'].shape[1] != verts_count:
shutil.rmtree(os.path.join(folder, id))
if os.path.exists(os.path.join(out_folder, 'mesh_static', f'{id}_{garment}.pc16')):
os.remove(os.path.join(out_folder, 'mesh_static', f'{id}_{garment}.pc16'))
if os.path.exists(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garment}.pc16')):
os.remove(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garment}.pc16'))
if os.path.exists(os.path.join(out_folder, 'mesh_body_posed_no_orient', f'{id}.pc16')):
os.remove(os.path.join(out_folder, 'mesh_body_posed_no_orient', f'{id}.pc16'))
if os.path.exists(os.path.join(out_folder, 'mesh_mask', f'{id}_{garment}.npy')):
os.remove(os.path.join(out_folder, 'mesh_mask', f'{id}_{garment}.npy'))
# os.remove(os.path.join(out_folder, 'mesh_unposed_no_shape', f'{id}_{garment}.npy'))
if len(garments) == 2:
if os.path.exists(os.path.join(out_folder, 'mesh_static', f'{id}_{garments[1]}.pc16')):
os.remove(os.path.join(out_folder, 'mesh_static', f'{id}_{garments[1]}.pc16'))
if os.path.exists(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garments[1]}.pc16')):
os.remove(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garments[1]}.pc16'))
if os.path.exists(os.path.join(out_folder, 'mesh_mask', f'{id}_{garments[1]}.pc16')):
os.remove(os.path.join(out_folder, 'mesh_mask', f'{id}_{garments[1]}.npy'))
break
# os.remove(os.path.join(out_folder, 'mesh_unposed_no_shape', f'{id}_{garments[1]}.npy'))
def double_check_irregular_poses(folder, folder_reg, out_folder):
# ids = sorted(os.listdir(folder))
# for id in tqdm(ids):
# garment_dir = os.path.join(folder, id)
# if not os.path.isdir(garment_dir):
# continue
# garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
# info = loadInfo(os.path.join(folder, id, 'info.mat'))
# for garment in garments:
# body_count = readPC2(os.path.join(out_folder, 'mesh_body_posed_no_orient', f'{id}.pc16'), True)['V'].shape[0]
# verts_count = readPC2(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garment}.pc16'), True)['V'].shape[0]
# assert body_count == verts_count
frames = sorted(os.listdir(out_folder + '/mesh_posed_no_orient'))
frames = [(id.split('_')[0], id.split('_')[1].split('.')[0]) for id in frames]
for frame in tqdm(frames):
id = frame[0]
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garment = frame[1]
body_count = readPC2(os.path.join(out_folder, 'mesh_body_posed_no_orient', f'{id}.pc16'), True)['V'].shape[0]
verts_count = readPC2(os.path.join(out_folder, 'mesh_posed_no_orient', f'{id}_{garment}.pc16'), True)['V'].shape[0]
assert body_count == verts_count
def get_ids():
ids = []
with open(os.path.join('/data-local/127/cloth3d_processed', 'frames_train.txt'), 'r') as f:
for line in f:
ids.append(line.split()[0])
with open(os.path.join('/data-local/127/cloth3d_processed', 'frames_train_skirt.txt'), 'r') as f:
for line in f:
ids.append(line.split()[0])
ids = sorted(list(set(ids)))
with open(os.path.join('/data-local/127/cloth3d_processed', 'frames_train_ids.txt'), 'w') as f:
for id in ids:
f.write(f'{id}\n')
ids = []
with open(os.path.join('/data-local/127_2/cloth3d_processed_test', 'frames_test.txt'), 'r') as f:
for line in f:
ids.append(line.split()[0])
with open(os.path.join('/data-local/127_2/cloth3d_processed_test', 'frames_test_skirt.txt'), 'r') as f:
for line in f:
ids.append(line.split()[0])
ids = sorted(list(set(ids)))
with open(os.path.join('/data-local/127_2/cloth3d_processed_test', 'frames_test_ids.txt'), 'w') as f:
for id in ids:
f.write(f'{id}\n')
pass
def generate_fixed_masks(folder, out_folder):
ids = sorted(os.listdir(folder))
os.makedirs(os.path.join(out_folder, 'mesh_fixed'), exist_ok=True)
F = np.load('smpl/smpl_faces.npy')
F_skirt = np.load('smpl/smpl_faces_skirt.npy')
import random
# import trimesh
import pyvista as pv
random.shuffle(ids)
for id in tqdm(ids):
garment_dir = os.path.join(folder, id)
if not os.path.isdir(garment_dir):
continue
garments = [f.replace('.obj','') for f in os.listdir(garment_dir) if f.endswith('.obj')]
for garment in garments:
if os.path.exists(os.path.join(out_folder, f'{id}_{garment}.pc16')):
continue
is_skirt = garment in ['Dress', 'Skirt']
mesh_static = np.load(os.path.join(out_folder, 'mesh_static', f'{id}_{garment}.npy'))
mask = np.load(os.path.join(out_folder, 'mesh_mask', f'{id}_{garment}.npy'))
_, faces = _maskFaces(np.zeros((14475, 3)), F_skirt if is_skirt else F, mask)
_, new_mask = remove_long_edges(mesh_static, faces.astype(np.int32), 0.2 if is_skirt else 0.1)
new_mask_full = np.zeros((14475), dtype=bool)
new_mask_full[mask] = new_mask
_, new_faces = _maskFaces(np.zeros((14475, 3)), F_skirt if is_skirt else F, new_mask_full)
mesh_new = mesh_static[new_mask]
# fig = go.Figure(data=[go.Mesh3d(x=mesh_new[:,0], y=mesh_new[:,1], z=mesh_new[:,2], i=new_faces[:,0], j=new_faces[:,1], k=new_faces[:,2])])
# fig.update_layout(scene_aspectmode='cube')
# fig.update_layout(scene=dict(xaxis=dict(range=[-1,1]), yaxis=dict(range=[-1,1]), zaxis=dict(range=[-1,1])))
# fig.show()
flattened_faces = np.asarray([np.concatenate((np.array([3]), f)) for f in new_faces.astype(np.int32)]).flatten()
m = pv.PolyData(mesh_new, flattened_faces)
m.fill_holes(0.03, inplace=True, progress_bar=False)
# m = trimesh.Trimesh(vertices=mesh_new, faces=new_faces, process=False, validate=False)
# trimesh.repair.fill_holes(m)
mesh_new = np.asarray(m.points)
new_faces = np.asarray(m.faces).reshape([-1, 4])[:, 1:]
m = tm.Trimesh(vertices=mesh_new, faces=new_faces, process=False, validate=False)
tm.repair.fix_winding(m)
mesh_new = np.asarray(m.vertices)
new_faces = np.asarray(m.faces)
# fig = go.Figure(data=[go.Mesh3d(x=mesh_new[:,0], y=mesh_new[:,1], z=mesh_new[:,2], i=new_faces[:,0], j=new_faces[:,1], k=new_faces[:,2])])
# fig.update_layout(scene_aspectmode='cube')
# fig.update_layout(scene=dict(xaxis=dict(range=[-1,1]), yaxis=dict(range=[-1,1]), zaxis=dict(range=[-1,1])))
# fig.show()
# fig = go.Figure(data=[go.Mesh3d(x=mesh_static[:,0], y=mesh_static[:,1], z=mesh_static[:,2], i=faces[:,0], j=faces[:,1], k=faces[:,2])])
# fig.update_layout(scene_aspectmode='cube')
# fig.update_layout(scene=dict(xaxis=dict(range=[-1,1]), yaxis=dict(range=[-1,1]), zaxis=dict(range=[-1,1])))
# fig.show()
# print((~new_mask).sum())
np.savez_compressed(os.path.join(out_folder, 'mesh_fixed', f'{id}_{garment}.npz'), mask=new_mask_full, mas_convert=new_mask, faces=new_faces)
pass
if __name__ == '__main__':
folder = '/data-net/dataset/cloth3d/test'
folder_reg = '/data-local/127/cloth3d_registration/test'
out_folder = '/data-local/127_2/cloth3d_processed_test'
# folder = '/data-net/dataset/cloth3d/train'
# folder_reg = '/data-local/127/cloth3d_registration/train'
# out_folder = '/data-local/127/cloth3d_processed'
smpl = SMPL(path='smpl', device='cuda')
# clean_dataset(folder)
# generate_frames_file(folder, 'frames_all.txt')
# split_data(folder, 0.9)
# create_extras_file(folder)
# check_irregular_poses(folder, folder_reg, out_folder)
# remove_irregular_poses(folder, folder_reg, out_folder)
# double_check_irregular_poses(folder, folder_reg, out_folder)
create_mesh_posed_no_orient_and_mask(folder, folder_reg, out_folder)
# verify_registration_ans_mask(folder, out_folder)
# create_pose_shape(folder, out_folder)
# create_mesh_static(folder, out_folder)
# create_mesh_body_posed_no_orient(folder, out_folder)
# create_mesh_normals(folder, out_folder)
# create_mesh_unposed_no_shape(folder, folder_reg, out_folder, start=args.start, end=args.end)
# create_mesh_unposed_no_shape_static(folder, folder_reg, out_folder, start=args.start, end=args.end)
# calculate_average(folder, out_folder)
# create_frames_file(folder, out_folder)
# get_ids()
# create_frames_file_test(folder, out_folder)
# create_frames_file_partial(folder, out_folder, part=0.5)
# folder = '/data-local/127_2/cape_processed/test/female'
# create_mesh_normals_cape(folder, None)
# generate_fixed_masks(folder, out_folder)