def animate_1d_automata(rule, nb_frames=10, scale=1., material_index=0):
# Init automata
automaton_size = nb_frames * 2
automaton = Automaton1D(automaton_size, rule=rule)
# Set middle cell as the only active one
#automaton.grid = np.zeros(automaton_size, dtype=np.uint8)
#automaton.grid[automaton_size // 2] = 1
bpy.context.scene.frame_start = 0
bpy.context.scene.frame_end = nb_frames
gpencil_obj_name = "GPencil"
gp_layer = init_grease_pencil(clear_layer=True,
gpencil_obj_name=gpencil_obj_name)
gp_frame = gp_layer.frames.new(0)
gpencil = bpy.context.view_layer.objects[gpencil_obj_name]
# center on middle cell
cell_size = 1
translate_vec = np.array([-(automaton_size / 2), 0, 0])
for frame in range(nb_frames):
gp_frame = gp_layer.frames.copy(gp_frame)
for i, cell in enumerate(automaton.grid):
# maintain pyramid shape (render only if further from the center at least the current frame number)
if cell and ((automaton_size // 2 - frame) <= i <=
(automaton_size // 2 + frame)):
# render cell
centers = [
(i, frame, 0), # normal center
#(i, frame - 1, automaton_size // 2 - frame), # center down
#(i, frame - 1, -(automaton_size // 2) + frame), # center up
]
for center in centers:
centers_shifted = np.array(center) + translate_vec
draw_square(gp_frame,
centers_shifted,
cell_size,
material_index=material_index)
#draw_cube(gp_frame, centers_shifted, cell_size, material_index=material_index)
automaton.update()
# scale automaton size along the growth axis
if scale != 1.:
gpencil.scale[0] = scale
gpencil.select_set(True)
bpy.ops.object.transform_apply(location=False,
rotation=False,
scale=True)
def animate_2d_automata(rule, nb_frames: 10, use_grease_pencil=True):
nb_rows = 10
nb_cols = 10
gol = Automaton2D(nb_rows, nb_cols, rule, seed=11)
FRAMES_SPACING = 1
bpy.context.scene.frame_start = 0
bpy.context.scene.frame_end = nb_frames * FRAMES_SPACING
if use_grease_pencil:
gp_layer = init_grease_pencil(clear_layer=True)
else:
obj_size = 0.7
subdivisions = 2
scale_factor = 0.2
init_mat_color = (0.7, 0.1, 0.1)
# obj_generator = lambda idx: automata_blender_utils.icosphere_generator(obj_size, subdivisions, idx[0], idx[1], 0)
obj_generator = lambda idx: automata_blender_utils.cube_generator(
obj_size, idx[0], idx[1], 0)
obj_updater = lambda obj, grid, idx: automata_blender_utils.object_updater_hide(
obj, grid[idx])
# obj_updater = lambda obj, grid, idx: automata_blender_utils.object_updater_scale(obj, grid[idx],
# scale_factor=scale_factor)
# obj_updater = lambda obj, grid, idx: automata_blender_utils.object_updater_color_vector(
# obj, grid[:, idx[0], idx[1]])
delete_all()
obj_grid = automata_blender_utils.create_grid(gol, obj_generator)
# automata_blender_utils.init_materials(obj_grid, init_mat_color)
gol.update()
for frame in range(nb_frames):
if use_grease_pencil:
gp_frame = gp_layer.frames.new(frame * FRAMES_SPACING)
for idx, val in np.ndenumerate(gol.grid):
if val:
draw_square(gp_frame, (idx[0], idx[1], 0), 1)
else:
bpy.context.scene.frame_set(frame)
automata_blender_utils.update_grid(obj_grid, gol, obj_updater)
gol.update()