Non/duplication of subobject inconsistency #4407
Description
Description of bug / unexpected behavior
When attempting to animate a subobjects, it seems only the first object added to scene, or the first object after a call to self.clear(), is subject to duplication.
Expected behavior
I am not sure what the intended behaviour for attempting to animate a subobject, however I believe it should either always duplicate, or never duplicate.
How to reproduce the issue
Code for reproducing the problem
from manim import *
class Test(Scene):
def run_test(self):
self.play(
*(Indicate(obj[1], scale_factor=0) for obj in self.myobjs),
run_time=2,
)
self.wait(1)
self.clear()
def construct(self):
a = Square(0.8).add(Text("A"))
b = Square(0.8).add(Text("B"))
c = VGroup(Square(0.8), Text("C"))
d = Square(0.8).add(Text("D"))
self.myobjs = VGroup(a, b, c, d).scale(2).arrange(buff=1)
self.add(a, b, c, d) # <- a is first, so it has the issue
self.run_test()
self.add(b, a, c, d) # <- b is frist, so it has the issue
self.run_test()
self.add(c, a, b, d) # <- c is first, no issues, different definition
self.run_test()
self.add(d) # <- d is first, so it has the issue
self.add(a, b, c)
self.run_test()Additional media files
Images/GIFs
Test.mp4
Logs
Terminal output
Manim Community v0.19.0
[08/22/25 03:00:25] DEBUG Hashing ... hashing.py:352
DEBUG Hashing done in 0.028515 s. hashing.py:364
DEBUG Hash generated : 1185818338_2803755490_2662545146 hashing.py:367
INFO Animation 0 : Using cached data (hash : 1185818338_2803755490_2662545146) cairo_renderer.py:89
DEBUG List of the first few animation hashes of the scene: ['1185818338_2803755490_2662545146'] cairo_renderer.py:98
DEBUG Animation with empty mobject animation.py:190
DEBUG Hashing ... hashing.py:352
DEBUG Hashing done in 0.027663 s. hashing.py:364
DEBUG Hash generated : 624642324_1432596116_3505779155 hashing.py:367
INFO Animation 1 : Using cached data (hash : 624642324_1432596116_3505779155) cairo_renderer.py:89
DEBUG List of the first few animation hashes of the scene: ['1185818338_2803755490_2662545146', cairo_renderer.py:98
'624642324_1432596116_3505779155']
DEBUG Hashing ... hashing.py:352
DEBUG Hashing done in 0.026762 s. hashing.py:364
DEBUG Hash generated : 624642324_569150730_3956832517 hashing.py:367
INFO Animation 2 : Using cached data (hash : 624642324_569150730_3956832517) cairo_renderer.py:89
DEBUG List of the first few animation hashes of the scene: ['1185818338_2803755490_2662545146', cairo_renderer.py:98
'624642324_1432596116_3505779155', '624642324_569150730_3956832517']
DEBUG Animation with empty mobject animation.py:190
DEBUG Hashing ... hashing.py:352
DEBUG Hashing done in 0.027674 s. hashing.py:364
DEBUG Hash generated : 624642324_1432596116_1684246318 hashing.py:367
INFO Animation 3 : Using cached data (hash : 624642324_1432596116_1684246318) cairo_renderer.py:89
DEBUG List of the first few animation hashes of the scene: ['1185818338_2803755490_2662545146', cairo_renderer.py:98
'624642324_1432596116_3505779155', '624642324_569150730_3956832517', '624642324_1432596116_1684246318']
DEBUG Hashing ... hashing.py:352
DEBUG Hashing done in 0.028798 s. hashing.py:364
DEBUG Hash generated : 624642324_569150730_1555325028 hashing.py:367
INFO Animation 4 : Using cached data (hash : 624642324_569150730_1555325028) cairo_renderer.py:89
DEBUG List of the first few animation hashes of the scene: ['1185818338_2803755490_2662545146', cairo_renderer.py:98
'624642324_1432596116_3505779155', '624642324_569150730_3956832517', '624642324_1432596116_1684246318',
'624642324_569150730_1555325028']
DEBUG Animation with empty mobject animation.py:190
DEBUG Hashing ... hashing.py:352
DEBUG Hashing done in 0.027896 s. hashing.py:364
DEBUG Hash generated : 624642324_1432596116_1998345094 hashing.py:367
INFO Animation 5 : Using cached data (hash : 624642324_1432596116_1998345094) cairo_renderer.py:89
DEBUG List of the first few animation hashes of the scene: ['1185818338_2803755490_2662545146', cairo_renderer.py:98
'624642324_1432596116_3505779155', '624642324_569150730_3956832517', '624642324_1432596116_1684246318',
'624642324_569150730_1555325028']
DEBUG Hashing ... hashing.py:352
DEBUG Hashing done in 0.062823 s. hashing.py:364
DEBUG Hash generated : 624642324_569150730_1375063100 hashing.py:367
INFO Animation 6 : Using cached data (hash : 624642324_569150730_1375063100) cairo_renderer.py:89
DEBUG List of the first few animation hashes of the scene: ['1185818338_2803755490_2662545146', cairo_renderer.py:98
'624642324_1432596116_3505779155', '624642324_569150730_3956832517', '624642324_1432596116_1684246318',
'624642324_569150730_1555325028']
DEBUG Animation with empty mobject animation.py:190
DEBUG Hashing ... hashing.py:352
DEBUG Hashing done in 0.026839 s. hashing.py:364
DEBUG Hash generated : 624642324_1432596116_2740782278 hashing.py:367
INFO Animation 7 : Using cached data (hash : 624642324_1432596116_2740782278) cairo_renderer.py:89
DEBUG List of the first few animation hashes of the scene: ['1185818338_2803755490_2662545146', cairo_renderer.py:98
'624642324_1432596116_3505779155', '624642324_569150730_3956832517', '624642324_1432596116_1684246318',
'624642324_569150730_1555325028']
INFO Combining to Movie file. scene_file_writer.py:739
DEBUG Partial movie files to combine (8 files): scene_file_writer.py:622
['/home/mathiassven/Desktop/manim_env/misc/media/videos/testsFile/480p15/partial_movie_files/Test/1185818338_28
03755490_2662545146.mp4',
'/home/mathiassven/Desktop/manim_env/misc/media/videos/testsFile/480p15/partial_movie_files/Test/624642324_1432
596116_3505779155.mp4',
'/home/mathiassven/Desktop/manim_env/misc/media/videos/testsFile/480p15/partial_movie_files/Test/624642324_5691
50730_3956832517.mp4',
'/home/mathiassven/Desktop/manim_env/misc/media/videos/testsFile/480p15/partial_movie_files/Test/624642324_1432
596116_1684246318.mp4',
'/home/mathiassven/Desktop/manim_env/misc/media/videos/testsFile/480p15/partial_movie_files/Test/624642324_5691
50730_1555325028.mp4']
INFO scene_file_writer.py:886
File ready at '/home/mathiassven/Desktop/manim_env/misc/media/videos/testsFile/480p15/Test.mp4'
INFO Rendered Test scene.py:255
Played 8 animations
System specifications
System Details
- OS: NixOS Unstable
- RAM: 32GB
- Python version: Python 3.12.9
- Installed modules : Just
manim