import numpy as np
from utils.render import vis_of_vertices, render_texture
from scipy import ndimage
def get_visibility(vertices, triangles, h, w):
triangles = triangles.T
vertices_vis = vis_of_vertices(vertices.T, triangles, h, w)
vertices_vis = vertices_vis.astype(bool)
for k in range(2):
tri_vis = vertices_vis[triangles[0,:]] | vertices_vis[triangles[1,:]] | vertices_vis[triangles[2,:]]
ind = triangles[:, tri_vis]
vertices_vis[ind] = True
# for k in range(2):
# tri_vis = vertices_vis[triangles[0,:]] & vertices_vis[triangles[1,:]] & vertices_vis[triangles[2,:]]
# ind = triangles[:, tri_vis]
# vertices_vis[ind] = True
vertices_vis = vertices_vis.astype(np.float32) #1 for visible and 0 for non-visible
return vertices_vis
def get_uv_mask(vertices_vis, triangles, uv_coords, h, w, resolution):
triangles = triangles.T
vertices_vis = vertices_vis.astype(np.float32)
uv_mask = render_texture(uv_coords.T, vertices_vis[np.newaxis, :], triangles, resolution, resolution, 1)
uv_mask = np.squeeze(uv_mask > 0)
uv_mask = ndimage.binary_closing(uv_mask)
uv_mask = ndimage.binary_erosion(uv_mask, structure = np.ones((4,4)))
uv_mask = ndimage.binary_closing(uv_mask)
uv_mask = ndimage.binary_erosion(uv_mask, structure = np.ones((4,4)))
uv_mask = ndimage.binary_erosion(uv_mask, structure = np.ones((4,4)))
uv_mask = ndimage.binary_erosion(uv_mask, structure = np.ones((4,4)))
uv_mask = uv_mask.astype(np.float32)
return np.squeeze(uv_mask)
def get_depth_image(vertices, triangles, h, w, isShow = False):
z = vertices[:, 2:]
if isShow:
z = z/max(z)
depth_image = render_texture(vertices.T, z.T, triangles.T, h, w, 1)
return np.squeeze(depth_image)
