Platform: VR 90+ FPS, comfort-first design, and motion control accuracy define VR development. Available Scripts vr_physics_hand.gd Expert physics-based hand controller with grab detection and velocity throwing. NEVER Do in VR Development NEVER drop below 90 FPS — 72 FPS in VR = instant nausea. MUST maintain 90 FPS minimum (Quest 2/3), 120 FPS preferred. Use Debug → Profiler aggressively. NEVER use smooth rotation without vignetting — Smooth camera rotation = vestibular mismatch = motion sickness. Provide snap turning (30°/45°) OR vignette during rotation. NEVER place UI too close or too far — UI at 0.5m = eye strain, at 10m = unreadable. Optimal distance: 1-3m from player. NEVER ignore motion-to-photon latency — >20ms latency = visible lag in hand tracking = breaks immersion. Minimize physics steps + rendering delay. NEVER skip teleport locomotion option — Not everyone tolerates smooth locomotion. MUST offer teleport as alternative for accessibility. NEVER forget physical boundaries — Player punches wall IRL = lawsuit. Use XRServer.get_reference_frame() to respect guardian/chaperone bounds. NEVER use standard 3D audio — Stereo audio in VR = disorienting. Use spatial audio (AudioStreamPlayer3D) for positional sound cues.

Enable XR

func _ready ( ) -> void : var xr_interface := XRServer . find_interface ( "OpenXR" ) if xr_interface and xr_interface . initialize ( ) : get_viewport ( ) . use_xr = true Comfort Settings Vignetting during movement Snap turning (30°/45° increments) Teleport locomotion option Seated mode support Motion Controls

XRController3D for hands

@ onready var left_hand := $XROrigin3D / LeftController @ onready var right_hand := $XROrigin3D / RightController func _process ( delta : float ) -> void : if left_hand . is_button_pressed ( "trigger" ) : grab_with_left ( ) Performance 90 FPS minimum - Critical for comfort Low latency - < 20ms motion-to-photon Foveated rendering if supported Best Practices Comfort First - Prevent motion sickness High FPS - 90+ required Physical Space - Respect boundaries UI Distance - 1-3m from player Reference Related: godot-camera-systems , godot-input-handling Related Master Skill: godot-master