OpenXR Canonical Pose Tool

Assesses pose positioning from different runtimes to help runtime vendors implement the "canonical" poses that the vendors of the hardware intend.

Usage

Start by cloning the repository with submodules:

• git clone ... --recurse-submodules

Or, if you already cloned and didn't clone submodules:

• git submodule update --init

PC

Build the project with CMake:

• mkdir build && cd build
• cmake ..

Open the solution and run the project. The tool will use whatever the runtime is currently active.

Quest Standalone

Setup:

• Follow: https://developer.oculus.com/documentation/native/android/mobile-device-setup/
• Make sure developer mode is enabled on Quest (have to use mobile app).

Install:

• https://developer.android.com/studio
  • NDK
  • Android SDK
• https://developer.oculus.com/downloads/package/oculus-developer-hub-win

Open the root of the repository in Android Studio. Press Run.

Output

• PC: the directory where the executable is located.
• Quest: external data path. Looking at the Quest storage on the PC, this is Android/data/com.danwillm.oxr_canonical_pose_tool/files.

Configuration

Configuration for the tool is done in cpt_config.xml.

Each item will output one file on each run of the tool. Items that will output files on run can be configured under outputs.

Inputs

Configuration for inputs (items that require the use of an interaction profile) is done under the inputs node.

Interaction profiles to suggest binding profiles for are defined in the interaction_profiles node. Each child node should have a name of interaction_profile and a value of the interaction profile path. Available attributes of the interaction_profile node are:

• requires_extension - Interaction profiles that require an extension to be used can specify the extension to request in this attribute.

Actions defined in the actions node.

Each child action node can have the following attributes:

• name - The name of the action.
• type - The type of action. Supported values:
  • pose - Pose action
• suggested_binding - The binding to suggest the action be bound to in the interaction profile. If subaction paths are used, these are prefixed to the suggested_binding
• reference - If reference is true, then the action won't be output to the resultant file, but can be used for other actions to use as a reference space when retrieving the pose.
• base - The name of the action to get the current action's pose space in relation to.
• requires_extension - If the action requires an extension to be used, this can be specified using this attribute.

Runtimes

Runtimes can add their own canonical reference files to runtimes, along with a way to match their runtimeName in the OpenXR instance properties to a name to define the runtime by in the tool.

Files output from the tool can be added directly to cpt_config.xml, under runtimes.

Reference files for inputs should be in inputs, with a child node called input and must have an interaction_profile attribute specifying the interaction profile that the reference file represents. The value of the node must be the relative path from the executable to the reference file.