Core Unity steps included:#

• enabling OpenXR in XR Plugin Management
• setting up the XR Origin (camera + hands)
• using XR Ray Interactor for teleportation and distance grabbing
• building interactive World Space UIs
• adding continuous locomotion and snap turning
• configuring Tunneling Vignette to reduce motion sickness
• mirroring hand poses between left and right hands
• organizing interaction layers

Even though Unity automates a lot of VR setup today, the small configuration details still matter—especially when multiple systems like locomotion, UI, grabbing, and physics overlap.

1. Project Setup#

• Created a new Unity project
• Adjusted project settings (rendering, physics, XR defaults)
• Added a main VR scene with a plane and basic environment

2. XR Setup#

• Installed XR Interaction Toolkit via Package Manager
• Added XR Origin containing camera and both hand controllers
• Configured Input Actions for both controllers

3. XR Plugin#

• Enabled OpenXR
• Activated required interaction profiles

This part seems simple, but OpenXR configuration must match the headset—otherwise nothing responds.

Hand Setup#

• Imported custom hand models
• Placed them under LeftHand / RightHand
• (Optional) Added Animator controllers for finger motions

Input Detection#

Coded detection for:

• trigger
• grip
• pinch

This made it easier to connect interactions like firing bullets or grabbing interactables.

Continuous Locomotion#

Implemented using:

• Continuous Move Provider
• Character Controller
• Gravity + center adjustments

Turn Provider#

Two modes:

• Continuous Turn (smooth rotation)
• Snap Turn (fixed-angle rotation for comfort)

Movement feels simple, but balancing gravity, character height, and collision takes trial and error.

Teleportation Setup#

• Added XR Ray Interactor to each controller
• Configured straight or curved ray
• Added Teleportation Provider
• Defined teleportation areas (floors, platforms)
• Added a hover reticle for valid targets

Teleport is still the most comfortable VR locomotion option, so getting this right matters.

Hover Detection#

Used XR Direct Interactor + Collider.

Grab Interactables#

Configured:

• Rigidbody
• Collider
• Interaction settings (instantaneous / velocity-based / kinematic)

Projectile Firing#

Imported a pistol model and implemented forward bullet firing.

This was the first part that made the project feel like an actual VR game.

Offset Grab#

Created attachment transforms for left and right hands so each object is held naturally.

Distance Grab#

Enabled remote grabbing using:

• XR Ray Interactor
• Interaction layers

Layer management is surprisingly easy to overlook, but it’s crucial for preventing your rays from grabbing UI or teleport surfaces unintentionally.

World-Space UI#

• Added a World Space canvas
• Attached buttons, sliders, toggles
• Set UI layer + interaction components

Handling Interaction Conflicts#

Disabled teleport rays whenever hands interacted with UI—preventing accidental teleports.

Dynamic UI#

Added a toggle panel that appears in front of the user.

Haptic Setup#

• Attached custom haptic scripts
• Triggered haptics on grab/release
• Controlled intensity + duration

Haptics are a small detail but dramatically improve interaction feel.

Custom Grab Poses#

• Captured hand joint data for right hand
• Applied pose to interactable via attach transform
• Mirrored pose to left hand

Custom grab poses make objects feel much more realistic, especially tools or weapons.

Comfort Feature#

• Imported Tunneling Vignette sample
• Configured feathering, fade times, colors
• Attached component to main camera

This reduces VR motion sickness by limiting peripheral vision during movement.