Create unwrapped UV texture

unwrapped_texture.py

import menpo
import menpo3d
import numpy as np

template = menpo3d.io.import_builtin_asset.james_obj()

o_c_unwrap = menpo3d.unwrap.optimal_cylindrical_unwrap(template)
unwrapped_template = o_c_unwrap.apply(template)

u_t_aspect_ratio = np.divide(*unwrapped_template.range()[:2])

u_t_clip_transform = menpo3d.rasterize.transform.model_to_clip_transform(unwrapped_template)
u_t_clip = u_t_clip_transform.apply(unwrapped_template)

u_t_im_width = 1024
r = menpo3d.rasterize.GLRasterizer(width=u_t_im_width, height=int(u_t_im_width / u_t_aspect_ratio))

u_t_image = r.rasterize_mesh(u_t_clip)

new_tcoords = u_t_clip.points[:, :2] / 2 + .5
new_textured_mesh = menpo.shape.TexturedTriMesh(template.points, new_tcoords, u_t_image, trilist=template.trilist)