# Export from prebuilt docker image

## Prerequisites

* NVIDIA Docker 2

Make sure the ue4-ci-helpers package is up to date

```
pip install --upgrade ue4-ci-helpers
pip install ue4-docker
```

## Build the ue4-full image

<https://adamrehn.com/docs/ue4-docker/use-cases/linux-installed-builds>

## Build the deepdriveio/ue4-deepdrive-deps image

<https://github.com/deepdrive/ue4-deepdrive-deps>

## Export Unreal to your local filesystem

```
ue4-docker export installed deepdriveio/ue4-deepdrive-deps:latest ~/UnrealInstalled
```

Set the default version of Unreal with the [ue4cli](https://pypi.org/project/ue4cli/)

```
ue4 setroot ~/UnrealInstalled
```

## Build and run the project against the exported UnrealEngine

Now you're ready to build and run the project. This is what you'll do any time you've pulled in the latest changes from GitHub as well.

Download maps

```
python Packaging/package.py --download-jamestown
```

### Clean and build

Do the following the first time you export or anytime you pull latest from deepdrive-sim.

#### Clean your deepdrive-sim project directory to clear any stale build data

```
./clean_all.sh
```

#### Build and run - takes \~5 minutes

```
ue4 build
ue4 run
```