No module named 'LuisaRenderPy'

[Xu-Xuanhui]

python examples/rendering/demo.py

[Genesis] [23:14:40] [INFO] ╭───────────────────────────────────────────────╮
[Genesis] [23:14:40] [INFO] │┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈ Genesis ┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈┉┈│
[Genesis] [23:14:40] [INFO] ╰───────────────────────────────────────────────╯
[Genesis] [23:14:41] [INFO] Running on [NVIDIA GeForce RTX 4070 Laptop GPU] with backend gs.cuda. Device memory: 7.75 GB.
[Genesis] [23:14:42] [DEBUG] [Taichi] version 1.7.2, llvm 15.0.4, commit 0131dce9, linux, python 3.10.16
[Genesis] [23:14:42] [DEBUG] [Taichi] Starting on arch=cuda
[Genesis] [23:14:42] [INFO] 🚀 Genesis initialized. 🔖 version: 0.2.0, 🌱 seed: 0, 📏 precision: '32', 🐛 debug: False, 🎨 theme: 'dark'.
Traceback (most recent call last):
File "/home/xxh/anaconda3/envs/genesis/lib/python3.10/site-packages/genesis/vis/raytracer.py", line 17, in
import LuisaRenderPy
ModuleNotFoundError: No module named 'LuisaRenderPy'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/xxh/Documents/Genesis-main/examples/rendering/demo.py", line 166, in
main()
File "/home/xxh/Documents/Genesis-main/examples/rendering/demo.py", line 11, in main
scene = gs.Scene(
File "/home/xxh/anaconda3/envs/genesis/lib/python3.10/site-packages/genesis/utils/misc.py", line 27, in new_init
original_init(self, *args, **kwargs)
File "/home/xxh/anaconda3/envs/genesis/lib/python3.10/site-packages/genesis/engine/scene.py", line 148, in init
self._visualizer = Visualizer(
File "/home/xxh/anaconda3/envs/genesis/lib/python3.10/site-packages/genesis/vis/visualizer.py", line 60, in init
from .raytracer import Raytracer
File "/home/xxh/anaconda3/envs/genesis/lib/python3.10/site-packages/genesis/vis/raytracer.py", line 19, in
gs.raise_exception(f"Failed to import LuisaRenderer. {e.class.name}: {e}")

[Genesis] [23:14:44] [ERROR] Failed to import LuisaRenderer. ModuleNotFoundError: No module named 'LuisaRenderPy'

How to fix this？Is LuisaRender not installed properly? Has anyone solved this problem?

[zswang666]

Luisa raytracing rendering requires building as mentioned here. We will update the installation guide soon. Stay tuned.

[wildthingz]

I'm having a similar issue here as well. It seems like python bindings are not being generated at all when luisa-render is compiled and built.

[Xu-Xuanhui]

I'm having a similar issue here as well. It seems like python bindings are not being generated at all when luisa-render is compiled and built.

Do you fix it?

[Xu-Xuanhui]

Luisa raytracing rendering requires building as mentioned here. We will update the installation guide soon. Stay tuned.

I built LuisaRender. But it still does't work

[akashgoswami]

The problem is that the file is generated correctly after build in the folder genesis/Genesis/genesis/ext/LuisaRender/build/bin/LuisaRenderPy.cpython-312-x86_64-linux-gnu.so

However it is not imported correctly in the renderer code. In my system the variable LRP_PATH in file raytracer.py maps to /home/root/src/genesis/lib/python3.12/site-packages/genesis/ which is not where the module is built.

As a temporary fix I have modified the local copy of the file raytracer.py:14 to specify the correct LRP_PATH. Hope this helps.

[wildthingz]

thanks akash. LuisaRenderPy.cpython-312-x86_64-linux-gnu.so is not generated for me for some reason. I also looks through the luisarender's cmake files, I couldn't find any line that instructs the compiler to generate that file.

What version of luisa are you using and how are you building it?

[Xu-Xuanhui]

The problem is that the file is generated correctly after build in the folder genesis/Genesis/genesis/ext/LuisaRender/build/bin/LuisaRenderPy.cpython-312-x86_64-linux-gnu.so

However it is not imported correctly in the renderer code. In my system the variable LRP_PATH in file raytracer.py maps to /home/root/src/genesis/lib/python3.12/site-packages/genesis/ which is not where the module is built.

As a temporary fix I have modified the local copy of the file raytracer.py:14 to specify the correct LRP_PATH. Hope this helps.

In my system the variable LRP_PATH in file raytracer.py maps to 'ext/LuisaRender/build/bin' which seem right. However, 'LuisaRenderPy.cpython-312-x86_64-linux-gnu.so' isn't exist. I can't find 'LuisaRenderPy.cpython-312-x86_64-linux-gnu.so' in my system. It seem the problem of the LuisaRender building. But it doen't report error when I built LuisaRender.

[Xu-Xuanhui]

thanks akash. LuisaRenderPy.cpython-312-x86_64-linux-gnu.so is not generated for me for some reason. I also looks through the luisarender's cmake files, I couldn't find any line that instructs the compiler to generate that file.

What version of luisa are you using and how are you building it?

Same problem!

[Xu-Xuanhui]

The problem is that the file is generated correctly after build in the folder genesis/Genesis/genesis/ext/LuisaRender/build/bin/LuisaRenderPy.cpython-312-x86_64-linux-gnu.so

However it is not imported correctly in the renderer code. In my system the variable LRP_PATH in file raytracer.py maps to /home/root/src/genesis/lib/python3.12/site-packages/genesis/ which is not where the module is built.

As a temporary fix I have modified the local copy of the file raytracer.py:14 to specify the correct LRP_PATH. Hope this helps.
thanks akash.
Zhang Shaokun replied me that 'Genesis uses a forked version of LuisaRender maintained by their project’s developers.' What version of luisa are you using?

[Xu-Xuanhui]

The problem is that the file is generated correctly after build in the folder genesis/Genesis/genesis/ext/LuisaRender/build/bin/LuisaRenderPy.cpython-312-x86_64-linux-gnu.so

However it is not imported correctly in the renderer code. In my system the variable LRP_PATH in file raytracer.py maps to /home/root/src/genesis/lib/python3.12/site-packages/genesis/ which is not where the module is built.

As a temporary fix I have modified the local copy of the file raytracer.py:14 to specify the correct LRP_PATH. Hope this helps.

Zheng Shaokun replied me that 'Genesis uses a forked version of LuisaRender maintained by their project’s developers. ' What version of luisa are you using?

[Jiaviz]

It's possible to manually link the LuisaRenderPy.cpython-312-x86_64-linux-gnu.so to the conda python enviroment:

SITE_PACKAGES=$(python -c "import site; print(site.getsitepackages()[0])")
ln -s /full/path/to/build/LuisaRenderPy.cpython-312-x86_64-linux-gnu.so "$SITE_PACKAGES/LuisaRenderPy.cpython-312-x86_64-linux-gnu.so"

[Evgeny105]

How do I get LuisaRenderPy? If I compile the code as stated in the installation instructions, it does not compile packages for Python.

[Xu-Xuanhui]

How do I get LuisaRenderPy? If I compile the code as stated in the installation instructions, it does not compile packages for Python.

You built the wrong LuisaRender version. The LusiaRender in 'https://github.com/LuisaGroup/LuisaRender.git' can't generate LuisaRenderPy.cpython-312-x86_64-linux-gnu.so.

Alif-01's fork update python interface(https://github.com/Alif-01/LuisaRender.git) . I built it and LuisaRenderPy.cpython-312-x86_64-linux-gnu.so was generated. You need python3.12 to import LuisaRenderPy. (LuisaRenderPy.cpython-312-x86_64-linux-gnu.so should be renamed as LuisaRenderPy.so )

However, I meet the new error.
[2024-12-20 12:25:48.553] [console] [warning] Failed to load built-in kernels: the provided PTX was compiled with an unsupported toolchain.. Re-trying with lower compute capability... [/home/xxh/Downloads/LuisaRender/src/compute/src/backends/cuda/cuda_device.cpp:127]
[2024-12-20 12:25:48.575] [console] [error] CUDA_ERROR_UNSUPPORTED_PTX_VERSION: the provided PTX was compiled with an unsupported toolchain. [/home/xxh/Downloads/LuisaRender/src/compute/src/backends/cuda/cuda_device.cpp:136]

It seems that I have to reinstall lower version CUDA.
ACMLCZH also updated python interface. I am trying to build his fork.