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https://github.com/nerfstudio-project/nerfstudio.git
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155 lines
5.0 KiB
Markdown
155 lines
5.0 KiB
Markdown
# Installation
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This repository is tested with CUDA 11.3. Make sure to install [Conda](https://docs.conda.io/en/latest/miniconda.html#linux-installers) before preceding.
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</details>
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Create the python environment
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```bash
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conda create --name nerfactory python=3.8.13
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conda activate nerfactory
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python -m pip install --upgrade pip
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```
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Clone the repo
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```bash
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git clone git@github.com:plenoptix/nerfactory.git
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```
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Install dependencies and nerfactory as a library
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```bash
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cd nerfactory
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pip install -e .
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```
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Install tiny-cuda-nn (tcnn) to run instant_ngp
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```bash
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pip install torch==1.12.1+cu113 torchvision==0.13.1+cu113 -f https://download.pytorch.org/whl/torch_stable.html
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pip install git+https://github.com/NVlabs/tiny-cuda-nn/#subdirectory=bindings/torch
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```
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Install tab completion for nerfactory (bash and zsh)
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```bash
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# If the CLI changes, we can also re-install to synchronize completions
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nf-install-cli
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```
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# Downloading data
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Download the original NeRF Blender dataset. We support the major datasets and allow users to create their own dataset, described in detail [here](https://plenoptix-nerfactory.readthedocs-hosted.com/en/latest/tutorials/data/index.html).
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```
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python scripts/downloads/download_data.py --dataset=blender
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```
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Use `--help` to view all currently available datasets. The resulting script should download and unpack the dataset as follows:
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```
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|─ nerfactory/
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├─ data/
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| ├─ blender/
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| ├─ fern/
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| ├─ lego/
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...
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|- <dataset_format>/
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|- <scene>
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...
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```
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# Training a model
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To run with all the defaults, e.g. vanilla nerf method with the blender lego image
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Run a vanilla nerf model.
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```bash
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python scripts/train.py
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```
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Run a faster version with instant ngp using tcnn (without the viewer).
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```bash
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python scripts/train.py --config-name=graph_instant_ngp.yaml
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```
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Run with the viewer. However, you'll have to start the viewer server first. (See [viewer docs](../tutorials/viewer/viewer_quickstart.md))
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```bash
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python scripts/train.py --config-name=graph_instant_ngp.yaml viewer.enable=true
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```
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With support for [Hydra](https://hydra.cc/), you can run with other configurations by changing appropriate configs defined in `configs/` or by setting flags via command-line arguments.
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# Visualizing training runs
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If you using a fast NeRF variant (ie. Instant-NGP), we reccomend using our viewer. See our [viewer docs](../tutorials/viewer/viewer_quickstart.md) for more details. The viewer will allow interactive visualization of training in realtime.
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Additionally, if you run everything with the default configuration, by default, we use [TensorBoard](https://www.tensorflow.org/tensorboard) to log all training curves, test images, and other stats. Once the job is launched, you will be able to track training by launching the tensorboard in `outputs/blender_lego/vanilla_nerf/<timestamp>/<events.tfevents>`.
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```bash
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tensorboard --logdir outputs
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```
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# Rendering a Trajectory
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To evaluate the trained NeRF, we provide an evaluation script that allows you to do benchmarking (see our [benchmarking workflow](../tooling/benchmarking.md)) or to render out the scene with a custom trajectory and save the output to a video.
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```bash
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python scripts/eval.py render-trajectory --load-config=outputs/blender_lego/instant_ngp/2022-07-07_230905/config.yml --traj=spiral --output-path=output.mp4
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```
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Please note, this quickstart allows you to preform everything in a headless manner. We also provide a web-based viewer that allows you to easily monitor training or render out trajectories. See our [viewer docs](../tutorials/viewer/viewer_quickstart.md) for more.
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# FAQ
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- [TinyCUDA installation errors out with cuda mismatch](tiny-cuda-error)
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(tiny-cuda-error)=
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#### TinyCUDA installation errors out with cuda mismatch
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While installing tiny-cuda, you run into: `The detected CUDA version mismatches the version that was used to compile PyTorch (10.2). Please make sure to use the same CUDA versions.`
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**Solution**:
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```
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pip install torch==1.12.1+cu113 torchvision==0.13.1+cu113 -f https://download.pytorch.org/whl/torch_stable.html
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```
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- [Installation errors, File "setup.py" not found](pip-install-error)
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(pip-install-error)=
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#### Installation errors, File "setup.py" not found
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When installing dependencies and nerfactory with `pip install -e .`, you run into: `ERROR: File "setup.py" not found. Directory cannot be installed in editable mode`
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**Solution**:
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This can be fixed by upgrading pip to the latest version:
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```
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python -m pip install --upgrade pip
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```
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- [Runtime errors, "len(sources) > 0".](cuda-sources-error)
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(cuda-sources-error)=
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#### Runtime errors, "len(sources) > 0".
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When running `train.py `, an error occurs when installing cuda files in the backend code.
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**Solution**:
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This is a problem with not being able to detect the correct CUDA version, and can be fixed by updating the CUDA path environment variables:
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```
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export CUDA_HOME=/usr/local/cuda
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export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64
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export PATH=$PATH:$CUDA_HOME/bin
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```
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