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import torch
import trimesh
import numpy as np
import skimage.io as io
from PIL import Image
from smplx import SMPL
from matplotlib import cm as mpl_cm, colors as mpl_colors
from trimesh.visual.color import face_to_vertex_color, vertex_to_face_color, to_rgba
from common import constants
from .colorwheel import make_color_wheel_image
def get_smpl_uv():
uv_obj = 'data/body_models/smpl_uv_20200910/smpl_uv.obj'
uv_map = []
with open(uv_obj) as f:
for line in f.readlines():
if line.startswith('vt'):
coords = [float(x) for x in line.split(' ')[1:]]
uv_map.append(coords)
uv_map = np.array(uv_map)
return uv_map
def show_uv_texture():
# image = io.imread('data/body_models/smpl_uv_20200910/smpl_uv_20200910.png')
image = make_color_wheel_image(1024, 1024)
image = Image.fromarray(image)
uv = np.load('data/body_models/smpl_uv_20200910/uv_table.npy') # get_smpl_uv()
material = trimesh.visual.texture.SimpleMaterial(image=image)
tex_visuals = trimesh.visual.TextureVisuals(uv=uv, image=image, material=material)
smpl = SMPL(constants.SMPL_MODEL_DIR)
faces = smpl.faces
verts = smpl().vertices[0].detach().numpy()
# assert(len(uv) == len(verts))
print(uv.shape)
vc = tex_visuals.to_color().vertex_colors
fc = trimesh.visual.color.vertex_to_face_color(vc, faces)
face_colors = fc.copy()
fc = fc.astype(float)
vc = vc.astype(float)
fc[:,:3] = fc[:,:3] / 255.
vc[:,:3] = vc[:,:3] / 255.
print(fc[:,:3].max(), fc[:,:3].min(), fc[:,:3].mean())
print(vc[:, :3].max(), vc[:, :3].min(), vc[:, :3].mean())
np.save('data/body_models/smpl/color_wheel_face_colors.npy', fc)
np.save('data/body_models/smpl/color_wheel_vertex_colors.npy', vc)
print(fc.shape)
mesh = trimesh.Trimesh(verts, faces, validate=True, process=False, face_colors=face_colors)
# mesh = trimesh.load('data/body_models/smpl_uv_20200910/smpl_uv.obj', process=False)
# mesh.visual = tex_visuals
# import ipdb; ipdb.set_trace()
# print(vc.shape)
mesh.show()
def show_colored_mesh():
cm = mpl_cm.get_cmap('jet')
norm_gt = mpl_colors.Normalize()
smpl = SMPL(constants.SMPL_MODEL_DIR)
faces = smpl.faces
verts = smpl().vertices[0].detach().numpy()
m = trimesh.Trimesh(verts, faces, process=False)
mode = 1
if mode == 0:
# mano_segm_labels = m.triangles_center
face_labels = m.triangles_center
face_colors = (face_labels - face_labels.min()) / np.ptp(face_labels)
elif mode == 1:
# print(face_labels.shape)
face_labels = m.triangles_center
face_labels = np.argsort(np.linalg.norm(face_labels, axis=-1))
face_colors = np.ones((13776, 4))
face_colors[:, 3] = 1.0
face_colors[:, :3] = cm(norm_gt(face_labels))[:, :3]
elif mode == 2:
# breakpoint()
fc = np.load('data/body_models/smpl_uv_20200910/data/vertex_texture.npy')[0, :, 0, 0, 0, :]
face_colors = np.ones((13776, 4))
face_colors[:, :3] = fc
mesh = trimesh.Trimesh(verts, faces, process=False, face_colors=face_colors)
mesh.show()
def get_tenet_texture(mode='smplpix'):
# mode = 'smplpix', 'decomr'
smpl = SMPL(constants.SMPL_MODEL_DIR)
faces = smpl.faces
verts = smpl().vertices[0].detach().numpy()
m = trimesh.Trimesh(verts, faces, process=False)
if mode == 'smplpix':
# mano_segm_labels = m.triangles_center
face_labels = m.triangles_center
face_colors = (face_labels - face_labels.min()) / np.ptp(face_labels)
texture = np.zeros((1, faces.shape[0], 1, 1, 1, 3), dtype=np.float32)
texture[0, :, 0, 0, 0, :] = face_colors[:, :3]
texture = torch.from_numpy(texture).float()
elif mode == 'decomr':
texture = np.load('data/body_models/smpl_uv_20200910/data/vertex_texture.npy')
texture = torch.from_numpy(texture).float()
elif mode == 'colorwheel':
face_colors = np.load('data/body_models/smpl/color_wheel_face_colors.npy')
texture = np.zeros((1, faces.shape[0], 1, 1, 1, 3), dtype=np.float32)
texture[0, :, 0, 0, 0, :] = face_colors[:, :3]
texture = torch.from_numpy(texture).float()
else:
raise ValueError(f'{mode} is not defined!')
return texture
def save_tenet_textures(mode='smplpix'):
# mode = 'smplpix', 'decomr'
smpl = SMPL(constants.SMPL_MODEL_DIR)
faces = smpl.faces
verts = smpl().vertices[0].detach().numpy()
m = trimesh.Trimesh(verts, faces, process=False)
if mode == 'smplpix':
# mano_segm_labels = m.triangles_center
face_labels = m.triangles_center
face_colors = (face_labels - face_labels.min()) / np.ptp(face_labels)
texture = np.zeros((1, faces.shape[0], 1, 1, 1, 3), dtype=np.float32)
texture[0, :, 0, 0, 0, :] = face_colors[:, :3]
texture = torch.from_numpy(texture).float()
vert_colors = face_to_vertex_color(m, face_colors).astype(float) / 255.0
elif mode == 'decomr':
texture = np.load('data/body_models/smpl_uv_20200910/data/vertex_texture.npy')
texture = torch.from_numpy(texture).float()
face_colors = texture[0, :, 0, 0, 0, :]
vert_colors = face_to_vertex_color(m, face_colors).astype(float) / 255.0
elif mode == 'colorwheel':
face_colors = np.load('data/body_models/smpl/color_wheel_face_colors.npy')
texture = np.zeros((1, faces.shape[0], 1, 1, 1, 3), dtype=np.float32)
texture[0, :, 0, 0, 0, :] = face_colors[:, :3]
texture = torch.from_numpy(texture).float()
face_colors[:, :3] *= 255
vert_colors = face_to_vertex_color(m, face_colors).astype(float) / 255.0
else:
raise ValueError(f'{mode} is not defined!')
print(vert_colors.shape, vert_colors.max())
np.save(f'data/body_models/smpl/{mode}_vertex_colors.npy', vert_colors)
return texture |