'camera' attribute not found when setting background color of scene #774
Description
Description of bug / unexpected behavior
When I try to set the background of a scene using self.camera.background_color, I get an error upon rendering saying that the attribute camera doesn't exist.
Expected behavior
I expected the background color to set to the value I specified. When I try setting the background color with the -c flag in the command line, it works fine.
How to reproduce the issue
Code for reproducing the problem
scene.py
class ManimCELogo(Scene):
def construct(self):
self.camera.background_color = "#ece6e2"
logo_green = "#87c2a5"
logo_blue = "#525893"
logo_red = "#e07a5f"
logo_black = "#343434"
ds_m = MathTex(r"\mathbb{M}", fill_color=logo_black).scale(7)
ds_m.shift(2.25 * LEFT + 1.5 * UP)
circle = Circle(color=logo_green, fill_opacity=1).shift(LEFT)
square = Square(color=logo_blue, fill_opacity=1).shift(UP)
triangle = Triangle(color=logo_red, fill_opacity=1).shift(RIGHT)
logo = VGroup(triangle, square, circle, ds_m) # order matters
logo.move_to(ORIGIN)
self.add(logo)rendering command used:
manim scene.py ManimCELogo -sql
Logs
Terminal output
[11/25/20 10:51:27] DEBUG Read configuration files: ['/Users/my-user-name/.pyenv/versions/3.8.5/lib/python3.8/site config.py:164
-packages/manim/config/default.cfg']
Traceback (most recent call last):
File "/Users/my-user-name/.pyenv/versions/3.8.5/lib/python3.8/site-packages/manim/__main__.py", line 75, in main
scene.render()
File "/Users/my-user-name/.pyenv/versions/3.8.5/lib/python3.8/site-packages/manim/scene/scene.py", line 88, in render
self.construct()
File "scene.py", line 123, in construct
self.camera.background_color = "#ece6e2"
AttributeError: 'ManimCELogo' object has no attribute 'camera'
System specifications
System Details
- OS: macOS 10.15 (Catalina)
- RAM: 16 GB
- Python version (
python/py/python3 --version): Python 3.8.5 - Installed modules (provide output from
pip list):
Package Version
----------------- ----------
appdirs 1.4.4
cairocffi 1.2.0
certifi 2020.6.20
cffi 1.14.3
colorama 0.4.4
colour 0.1.5
commonmark 0.9.1
distlib 0.3.1
filelock 3.0.12
grpcio 1.33.2
grpcio-tools 1.33.2
manimce 0.1.0
numpy 1.19.4
pangocairocffi 0.3.2
pangocffi 0.6.0
pathtools 0.1.2
Pillow 8.0.1
pip 20.1.1
pipenv 2020.6.2
progressbar 2.5
protobuf 3.14.0
pycairo 1.20.0
pycparser 2.20
pydub 0.24.1
pygame 2.0.0.dev6
Pygments 2.7.2
rich 9.2.0
scipy 1.5.4
setuptools 47.1.0
six 1.15.0
tqdm 4.52.0
typing-extensions 3.7.4.3
virtualenv 20.0.30
virtualenv-clone 0.5.4
watchdog 0.10.3
LaTeX details
- LaTeX distribution (e.g. TeX Live 2020): MacTeX-2020
- Installed LaTeX packages: none
FFMPEG
Output of ffmpeg -version:
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
built with Apple clang version 12.0.0 (clang-1200.0.32.27)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1_4 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100