Blenderで対象のメッシュを螺旋状に複製して統合するPythonスクリプト

blender_duplicate_spirally.py

import bpy
import math

src_name = 'Cube'
loop = 10
split = 32
width_init = 1
width_incr = 0.01
height_init = 0
height_loop = 0.8
height_incr = height_loop / split
scale = 0.12
remove_src_obj = False
r_step = (2*math.pi) / split

def index_to_location(idx):
    width = width_init + idx * width_incr
    height = height_init + idx * height_incr
    
    r = idx%split
    x = width * math.cos(r * r_step)
    y = width * math.sin(r * r_step)
    return [x, y, height]
    
# generate
bpy.ops.object.select_all(action='DESELECT')
mesh = bpy.data.objects[src_name].data.copy()
scn_objects = bpy.context.scene.objects
for i in range(loop*split):
    o = bpy.data.objects.new(name='spirally', object_data=mesh)
    o.location = index_to_location(i)
    o.scale = [scale]*3
    o.rotation_euler = (0, -1, (2*math.pi/split)*(i%split))
    scn_objects.link(o)
    scn_objects[o.name].select = True
    scn_objects.active = o
    
bpy.ops.object.join()

if remove_src_obj:
    scn_objects.unlink(bpy.data.objects[src_name])
    bpy.context.active_object.name = src_name