def test_normals_spheres(self):
original_scene = test_scenes.colored_spheres()
original_prim = list(original_scene)[0]
features = dict(ambient_light=.25, render_normals=True)
features['directional_light'] = .5*np.array([(.5, .25, -.5), (0, -.25, -.25)])
rotation = [0.43797198, -0.4437895 , 0.08068451, 0.7776423]
prim = draw.Spheres.copy(original_prim)
scene = draw.Scene(prim, features=features, rotation=rotation, zoom=4)
self.render(scene, 'colored_spheres_normals')
def draw_plato(self):
direction_scene = draw.Scene(
[self.bond_prim, self.circle_prim, self.reference_prim],
zoom=14,
features=dict(additive_rendering=dict(invert=True)),
rotation=self.rotation)
circle_positions = (np.concatenate(self.circle_positions)
if self.circle_positions else np.array([0, 0, 0]))
self.circle_prim.points = circle_positions
return direction_scene
def test_normals_many_3d(self):
features = dict(render_normals=True)
num_particles = 3
seed = 3
np.random.seed(seed)
positions = np.random.uniform(0, 3, (num_particles, 3))
colors = np.random.uniform(.75, .9, (num_particles, 4))**1.5
orientations = np.random.rand(num_particles, 4)
orientations /= np.linalg.norm(orientations, axis=-1, keepdims=True)
vertices = np.random.rand(12, 3)
vertices -= np.mean(vertices, axis=0, keepdims=True)
diameters = np.random.rand(num_particles)
prim = draw.ConvexSpheropolyhedra(positions=positions,
colors=colors,
orientations=orientations,
vertices=vertices,
radius=.1)
prim2 = draw.ConvexPolyhedra.copy(prim)
prim2.positions = (-1, -1, -1) - prim2.positions
prim3 = draw.Spheres.copy(prim)
prim3.diameters = diameters
prim3.positions = (1, -1, 1) - prim.positions
# Lines doesn't currently support normals
# prim4 = draw.Lines(start_points=prim.positions, end_points=prim2.positions,
# colors=np.random.rand(num_particles, 4),
# widths=np.ones((num_particles,))*.1)
(vertices, faces) = plato.geometry.convexHull(vertices)
vertices -= (-1, 1, -1)
indices = list(plato.geometry.fanTriangleIndices(faces))
colors = np.random.rand(len(vertices), 4)
colors[:] = .5
prim5 = draw.Mesh(vertices=vertices, indices=indices, colors=colors)
prims = [prim, prim2, prim3, prim5]
scene = draw.Scene(prims, zoom=5, clip_scale=10, features=features)
self.render(scene, 'many_3d_normals')