Created
September 2, 2015 18:53
-
-
Save zeffii/22e8203f74953426c806 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import bpy | |
import bmesh | |
import numpy as np | |
## ------- part 1 --- do this once. | |
sig = 0.3 | |
n_frames = 101 | |
bpy.context.scene.frame_end = n_frames | |
pi = np.pi | |
make_ico = bpy.ops.mesh.primitive_ico_sphere_add | |
make_ico(subdivisions=3, size = 2.0, location = (0,0,3)) | |
obj = bpy.context.active_object | |
me = obj.data | |
ico0 = np.array([v.co for v in me.vertices]) # get ico vertices | |
zmin, zmax = ico0[:,2].min(), ico0[:,2].max() | |
zc = np.linspace(zmin, zmax, n_frames) | |
ico = np.zeros_like(ico0) | |
data = [] | |
for i in range(n_frames): | |
ico[:,:2] = (1.0 + np.exp(-(ico0[:,2] - zc[i])**2/(2.*sig**2)))[:,None] * ico0[:,:2] | |
ico[:,2] = ico0[:,2] | |
data.append(ico.copy()) | |
for i_frame in range(n_frames): | |
block = obj.shape_key_add(name=str(i_frame), from_mix=False) # returns a key_blocks member | |
block.value = 1 | |
block.mute = True | |
for (vert, co) in zip(block.data, data[i_frame]): | |
vert.co = co | |
for i_frame in range(n_frames): | |
DATA_PATH = obj.data.shape_keys.key_blocks[str(i_frame)].path_from_id('mute') | |
block.mute = False | |
exec(obj.keyframe_insert(data_path=DATA_PATH, frame = i_frame + 1, index=-1)) | |
block.mute = True | |
exec(obj.keyframe_insert(data_path=DATA_PATH, frame = i_frame + 2, index=-1)) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment