gpu-motunui

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GPU-Motunui is a path tracer that renders Disney Animation's Moana Island scene.

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# GPU-Motunui

GPU-Motunui is a unidirectional path tracer that renders Disney Animation's [Moana island scene](https://technology.disneyanimation.com/islandscene/). Using the OptiX 7 API and a custom out-of-core rendering solution, all ray tracing is done on the GPU. Read an introduction [here](https://www.render-blog.com/2020/10/03/gpu-motunui/).

## Renders
**shotCam:**
![shotCam](https://raw.githubusercontent.com/chellmuth/gpu-motunui/master/refs/shotCam.png)

**beachCam:**
![beachCam](https://raw.githubusercontent.com/chellmuth/gpu-motunui/master/refs/beachCam.png)

**dunesACam:**
![dunesACam](https://raw.githubusercontent.com/chellmuth/gpu-motunui/master/refs/dunesACam.png)

**palmsCam:**
![palmsCam](https://raw.githubusercontent.com/chellmuth/gpu-motunui/master/refs/palmsCam.png)

**rootsCam:**
![rootsCam](https://raw.githubusercontent.com/chellmuth/gpu-motunui/master/refs/rootsCam.png)

**grassCam:**
![grassCam](https://raw.githubusercontent.com/chellmuth/gpu-motunui/master/refs/grassCam.png)

## Build instructions
```
git clone --recursive https://github.com/chellmuth/gpu-motunui.git
cd gpu-motunui

# Pre-process the assets
cd scripts
export MOANA_ROOT=/path/to/moana/dataset
python moana.py
cd ..

# Build and run the renderer
mkdir build
cd build
export OPTIX_INSTALL_DIR=/path/to/optix
cmake -DCMAKE_BUILD_TYPE=Release -DOptiX_INSTALL_DIR="${OPTIX_INSTALL_DIR}" -DMOANA_ROOT="${MOANA_ROOT}" ..
make
./app/moana
```

gpu-motunui

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