OpenGL - Cairo discrepancy: AttributeError: 'OpenGLCamera' object has no attribute 'frame'

[kleinesfilmroellchen]

Description of bug / unexpected behavior

Even in a MovingCameraScene, there is no camera frame when rendering with OpenGL.

Expected behavior

A camera frame object just like in Cairo should exist.

How to reproduce the issue

Code for reproducing the problem

class LinearPredictiveCoding(MovingCameraScene):
    def construct(self):
        self.camera.frame.save_state()

Logs

Terminal output

╭─────────────────────────────── Traceback (most recent call last) ────────────────────────────────╮
│ Python\Python310\lib\site-packages\manim\cli\render\commands.py:103 in render                    │
│                                                                                                  │
│   101 │   │   │   │   │   with tempconfig(config):                                               │
│   102 │   │   │   │   │   │   scene = SceneClass(renderer)                                       │
│ ❱ 103 │   │   │   │   │   │   rerun = scene.render()                                             │
│   104 │   │   │   │   │   if rerun or config["write_all"]:                                       │
│   105 │   │   │   │   │   │   renderer.num_plays = 0                                             │
│   106 │   │   │   │   │   │   continue                                                           │
│                                                                                                  │
│ Python\Python310\lib\site-packages\manim\scene\scene.py:222 in render                            │
│                                                                                                  │
│    219 │   │   """                                                                               │
│    220 │   │   self.setup()                                                                      │
│    221 │   │   try:                                                                              │
│ ❱  222 │   │   │   self.construct()                                                              │
│    223 │   │   except EndSceneEarlyException:                                                    │
│    224 │   │   │   pass                                                                          │
│    225 │   │   except RerunSceneException as e:                                                  │
│                                                                                                  │
│ some_file.py:7 in construct                                                                      │
│                                                                                                  │
│ ❱   7 │   │   self.camera.frame.save_state()                                                     │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
AttributeError: 'OpenGLCamera' object has no attribute 'frame'

Additional comments

I'm well aware that this might be a known not implemented feature, but I'm creating this bug so that it is documented.

[John98Zakaria]

I had the same issue as well.

[icedcoffeeee]

this is expected, the opengl renderer does not support scenes other than Scene and ThreeDScene.

using the opengl renderer, the camera is itself a mobject, hence every Scene could be a MovingCameraScene. you should be able to do self.camera.save_state()

[kleinesfilmroellchen]

That is however another problematic discrepancy if one renderer uses self.camera and one uses self.camera.frame.

[MarkNwilliam]

any update on this issue was there a solution ?