Building an Unreal Project for the YURT

1. Add nDisplay support

If this project was created from the nDisplay template this is already done. Otherwise, simply follow the steps: https://docs.unrealengine.com/en-US/Engine/Rendering/nDisplay/AddToExisting/index.html

2a. Scripted Build

• Download the script: [TODO Add link]

• Run `./ue4_yurt_autobuild.sh [PROJECT_NAME] [PATH_TO_UE4_PROJECT]`

2b. Manual Build

• • For projects made with the Unreal Editor for the YURT: simply package the project normally. The steps for cooking and packaging an Unreal project can be found: https://docs.unrealengine.com/en-US/Engine/Basics/Projects/Packaging/index.html

• • For projects made with the normal Unreal Editor for the YURT:

    • If your machine does not have a copy of the patched Editor for the YURT you must zip up your project and move it to a machine that does (preferably vrlab2). You can zip up the project by going to File -> Package -> Zip up Project. Then email or sftp your .zip file to the machine with the patched editor and extract it.

    • Find the path to the .uproject in the root of the project directory, call this .UPROJECT_PATH

    • Open a terminal.

    • cd to the root of the UE4 editor (/home/andy/Desktop/UnrealYurt/UE4_Build on vrlab2)

    • run 'mkdir OutputDirectory'

    • Replace [UPROJECT_PATH] with the path you previously found

      • For development builds run: ./Engine/Build/BatchFiles/RunUAT.sh BuildCookRun -project="[UPROJECT_PATH]" -noP4 -platform=Linux -clientconfig=Development -serverconfig=Development -cook -allmaps -build -stage -pak -archive -archivedirectory="OutputDirectory"

      • For release builds run: ./Engine/Build/BatchFiles/RunUAT.sh BuildCookRun -project="[UPROJECT_PATH]" -noP4 -platform=Linux -clientconfig=Shipping -serverconfig=Shipping -cook -allmaps -build -stage -pak -archive -archivedirectory="OutputDirectory"

• Copy the "OutputDirectory/[Project Name]" directory to the YURT.

  • Unreal has remote deployment options, but I've found the easiest way to do this is to use sftp

    • sftp [username]@ssh.ccv.brown.edu

    • cd to the location you want to upload the project to.

    • run:

      • put -r OutputDirectory/[Project Name] .

• Setup a custom configuration file (OPTIONAL)

  • Either use the pre-made configuration file: https://gist.githubusercontent.com/ess476/28cc3219ba56a545b98a9ce09753590b/raw/a6ac09ff8d5f7567032050433282b05a6f624314/yurt_config.cfg

    • This currently has the cave001 node disabled. It can be re-added by uncommenting the cluster_node lines for cave001.

  • Alternatively use the MinVR to YURT configuration tool

  • If you want to add extra VRPN inputs you can do so by following the guide here: https://docs.unrealengine.com/en-US/Engine/Rendering/nDisplay/VRPN/index.html

• Setup the launcher (this requires FAR more editing than it should, hopefully it'll be simpler soon)

  • Clone a new copy of https://github.com/ess476/ue_launcher

  • Replace the yurt_config.cfg file with the custom configuration (if you made one).

  • Enter into the ue_launcher directory.

    • Edit ./launch.py, replace '~/data/esattler/ue_launcher' with the path to your launcher.

    • Edit ./launch.json and replace the "-dc_cfg=/users/esattler/data/esattler/LinuxNoEditor/Example/Content/ExampleConfigs/test_input.cfg" line with "-dc_cfg=[PATH TO YOUR yurt_config.cfg]"

    • Edit ./killall.py, replace 'pkill -9 Example' with 'pkill -9 [My Project Name]'

3. Run

• • To start the project do: ./run

  • To stop the project do: ./killall.sh