blenderで形状をアニメーションさせる簡単な例。Run Script してからTimelineで再生 (blender 2.82a)

blender_simple_anim1.py

import bpy
from mathutils import Vector, Matrix
import math

class MyScene:
    _freq = 3
    _cube_count = 20
    _scale = 0.1
    _radius = 2
    _rotation_x = math.radians(4)
    _rotation_z = math.radians(1)
        
    def __init__(self):
        self.cube = None
        self.cubes = []
        self.resetScene()

    def resetScene(self):
        for obj in bpy.data.objects:
            if obj.name.startswith("Cube"):
                bpy.data.objects.remove(obj)

        M = MyScene
        bpy.ops.mesh.primitive_cube_add()
        self.cube = bpy.context.object
        self.cube.scale *= M._scale
        # Move the object. Its origin stays in place.
        self.cube.data.transform(Matrix.Translation(Vector((0,0, M._radius / M._scale))))
        self.cube.hide_set(True)
        
    def my_handler(self, *args):
        scene = args[0]
        M = MyScene
        fc = scene.frame_current

        if fc % M._freq == 0 and len(self.cubes) < M._cube_count:
            cb = self.cube.copy()
            cb.hide_set(False)
            bpy.data.collections["Collection"].objects.link(cb)
            self.cubes.append(cb)
            
        for cb in self.cubes:
            cb.rotation_euler.x += M._rotation_x
            cb.rotation_euler.z += M._rotation_z
                
bpy.app.handlers.frame_change_pre.clear()
bpy.context.scene.frame_set(0)
myscene = MyScene()
bpy.app.handlers.frame_change_pre.append(myscene.my_handler)
print("----")