avoid trimesh import failure when pyrender has issue

[Kashu7100]

• Separated the trimesh import from pyrender

Avoid failure case like following:

[Error]: couldn't connect to display ""

Failed to import pyrender. Rendering will not work.
[Genesis] [08:48:54] [INFO] ╭─────────────────────────────────────────────────────────────────────────────────────╮
[Genesis] [08:48:54] [INFO] │┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉ Genesis ┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉│
[Genesis] [08:48:54] [INFO] ╰─────────────────────────────────────────────────────────────────────────────────────╯
[Genesis] [08:48:54] [INFO] Running on [NVIDIA GeForce RTX 3090] with backend gs.cuda. Device memory: 23.69 GB.
[Genesis] [08:48:54] [DEBUG] [Taichi] version 1.7.2, llvm 15.0.4, commit 0131dce9, linux, python 3.11.10
[Genesis] [08:48:54] [DEBUG] [Taichi] Starting on arch=cuda
[Genesis] [08:48:54] [INFO] 🚀 Genesis initialized. 🔖 version: 0.2.0, 🌱 seed: None, 📏 precision: '32', 🐛 debug: False, 🎨 theme: 'dark'.
Traceback (most recent call last):
  File "/workspace/examples/elastic_dragon.py", line 58, in <module>
    main()
  File "/workspace/examples/elastic_dragon.py", line 19, in main
    scene = gs.Scene(
            ^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/genesis/utils/misc.py", line 27, in new_init
    original_init(self, *args, **kwargs)
  File "/opt/conda/lib/python3.11/site-packages/genesis/engine/scene.py", line 148, in __init__
    self._visualizer = Visualizer(
                       ^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/genesis/vis/visualizer.py", line 26, in __init__
    self._context = RasterizerContext(vis_options)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/genesis/vis/rasterizer_context.py", line 37, in __init__
    self.init_meshes()
  File "/opt/conda/lib/python3.11/site-packages/genesis/vis/rasterizer_context.py", line 52, in init_meshes
    self.link_frame_mesh = trimesh.creation.axis(origin_size=0.03, axis_radius=0.025, axis_length=1.0)
                           ^^^^^^^
NameError: name 'trimesh' is not defined
[Genesis] [08:48:55] [INFO] 💤 Exiting Genesis and caching compiled kernels...

[zhouxian]

already fixed in latest commit :)

[JosvanderWesthuizen]

I'm still getting the same error even though I'm installing locally from the latest version of Genesis?

(genesis) josvanderwesthuizen@mac Genesis % gs view /Users/josvanderwesthuizen/coplay_repos/coplay/Backend/coplay/test_data/CuteCat.fbx
objc[29176]: Class GLFWHelper is implemented in both /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/taichi/_lib/core/taichi_python.cpython-312-darwin.so (0x143af8570) and /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/pygel3d/libPyGEL.dylib (0x32350d7c0). One of the two will be used. Which one is undefined.
objc[29176]: Class GLFWApplicationDelegate is implemented in both /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/taichi/_lib/core/taichi_python.cpython-312-darwin.so (0x143af85c0) and /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/pygel3d/libPyGEL.dylib (0x32350d810). One of the two will be used. Which one is undefined.
objc[29176]: Class GLFWWindowDelegate is implemented in both /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/taichi/_lib/core/taichi_python.cpython-312-darwin.so (0x143af85e8) and /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/pygel3d/libPyGEL.dylib (0x32350d838). One of the two will be used. Which one is undefined.
objc[29176]: Class GLFWContentView is implemented in both /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/taichi/_lib/core/taichi_python.cpython-312-darwin.so (0x143af8638) and /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/pygel3d/libPyGEL.dylib (0x32350d888). One of the two will be used. Which one is undefined.
objc[29176]: Class GLFWWindow is implemented in both /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/taichi/_lib/core/taichi_python.cpython-312-darwin.so (0x143af86b0) and /Users/josvanderwesthuizen/miniconda3/envs/genesis/lib/python3.12/site-packages/pygel3d/libPyGEL.dylib (0x32350d900). One of the two will be used. Which one is undefined.
[Error]: No ffmpeg exe could be found. Install ffmpeg on your system, or set the IMAGEIO_FFMPEG_EXE environment variable.

Failed to import pyrender. Rendering will not work.
[Genesis] [13:37:53] [INFO] ╭───────────────────────────────────────────────╮
[Genesis] [13:37:53] [INFO] │┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈ Genesis ┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈│
[Genesis] [13:37:53] [INFO] ╰───────────────────────────────────────────────╯
[Genesis] [13:37:53] [INFO] Running on [Apple M4 Max] with backend gs.cpu. Device memory: 128.00 GB.
[Genesis] [13:37:53] [INFO] 🚀 Genesis initialized. 🔖 version: 0.2.0, 🌱 seed: None, 📏 precision: '32', 🐛 debug: False, 🎨 theme: 'dark'.
Traceback (most recent call last):
  File "/Users/josvanderwesthuizen/miniconda3/envs/genesis/bin/gs", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/Users/josvanderwesthuizen/coplay_repos/Genesis/genesis/_main.py", line 252, in main
    view(args.filename, args.collision, args.rotate, args.scale)
  File "/Users/josvanderwesthuizen/coplay_repos/Genesis/genesis/_main.py", line 113, in view
    scene = gs.Scene(
            ^^^^^^^^^
  File "/Users/josvanderwesthuizen/coplay_repos/Genesis/genesis/utils/misc.py", line 27, in new_init
    original_init(self, *args, **kwargs)
  File "/Users/josvanderwesthuizen/coplay_repos/Genesis/genesis/engine/scene.py", line 148, in __init__
    self._visualizer = Visualizer(
                       ^^^^^^^^^^^
  File "/Users/josvanderwesthuizen/coplay_repos/Genesis/genesis/vis/visualizer.py", line 26, in __init__
    self._context = RasterizerContext(vis_options)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/josvanderwesthuizen/coplay_repos/Genesis/genesis/vis/rasterizer_context.py", line 37, in __init__
    self.init_meshes()
  File "/Users/josvanderwesthuizen/coplay_repos/Genesis/genesis/vis/rasterizer_context.py", line 52, in init_meshes
    self.link_frame_mesh = trimesh.creation.axis(origin_size=0.03, axis_radius=0.025, axis_length=1.0)
                           ^^^^^^^
NameError: name 'trimesh' is not defined
[Genesis] [13:37:53] [INFO] 💤 Exiting Genesis and caching compiled kernels...

UPDATE: installing ffmpeg fixed this. (but .fbx is not supported yet)