Reference/Release Notes/2.83/Virtual Reality

= Blender 2.83: Virtual Reality =

Initial native virtual reality (VR) support is now available. The feature set is focused on specific use cases for scene inspection, so it is intentionally limited. The development team considers this to be the first milestone and base for more feature-rich VR support. 

Scene Inspection


Scene inspection refers to the ability to inspect the scene in VR, without interacting with content. Essentially this means head-mounted display (HMD) support as well as some simple settings (controllable from outside the VR view) to control the experience.

Examples of supported use cases:
 * VR as a way for directors or clients to inspect scenes and give feedback to artists.
 * Pre-visualization for artists working on VR games.
 * Samsung GearVR/Google Cardboard movie making and app development.

Supported Platforms


The Blender VR backend uses OpenXR, a new standard for virtual, augmented and mixed reality. So a platform has to support OpenXR to be usable with Blender. Unfortunately, SteamVR does not support OpenXR yet at this time, so HTC Vive and Valve Index are not supported. A list of supported platforms and a set up guide is available in the Blender Manual.

There is no OpenXR compatible platform in sight for macOS. Hence, all VR features are disabled for macOS Blender builds.

VR Scene Inspection Add-on
The user interface for the VR features is managed through an add-on, which is disabled by default. It can be activated in the Preferences, as any other add-on. The new options are placed in the Sidebar of 3D Views.

Main features include:
 * VR Viewport Support for rendering viewports to an HMD and using positional and rotational information from the device to move in the virtual space.
 * VR Mirror Each regular 3D View can act as a VR mirror, which will make it follow the perspective of the VR viewer. Note that usage of this feature may reduce the VR view performance notably.
 * VR Camera Gizmo Each regular 3D View has the option Show VR Camera as part of the VR settings. It will draw a camera object like shape to indicate the current location and rotation of the viewer in the virtual space. Note that usage of this feature may reduce the VR view performance notably.
 * Landmarks A system to store an arbitrary amount of cameras as viewer base poses. The location and rotation of the active landmark camera is used to determine the base location and rotation of the viewer. The camera icon in the list defines which landmark is currently used to define the viewer base pose of the VR session.
 * Positional Tracking Toggle Keeps the current position (calculated based on the VR eye center pose) when enabled while a VR session is running.
 * Debugging Tools New `--debug-xr` and `--debug-xr-time` command-line options.
 * Python-API BPY additions to manage VR settings and query session state information (`bpy.types.XrSessionSettings`, `bpy.types.XrSessionState`).
 * Helpful Error Reporting In cases like when no HMD is plugged in, or no OpenXR compatible runtime is found, errors are reported. The error handling was carefully designed to be reliable and to provide useful messages to the user.