楽AI — The Universal Runtime for World Models  |  For Studios & Developers →    Also: Try the Consumer Demo →
SPATIAL ENGINE

Spatial Engine

Physics, particles, animation, and spatial audio. Everything you need for immersive 3D worlds, optimized for XR.

120 Hz
XR Rendering
GPU
Particle Compute
HRTF
Spatial Audio
Sub-ms
Physics Step
PHYSICS

Physics Engine

Production-grade 3D physics with rigid bodies, constraints, raycasting, and collision detection. Deterministic simulation with sub-millisecond step times even on mobile XR hardware.

Key benefit: Consistent, reliable physics across VR, desktop, and mobile — no per-platform tuning.
VFX

Particle System

GPU-accelerated particle system with per-genre VFX presets. Supports emitters, attractors, collision, and LOD scaling. Automatic budget management keeps frame rates locked at 72-120 Hz on XR hardware.

Key benefit: Cinematic VFX that scale to the hardware — no manual optimization.
ANIMATION

Animation System

Skeletal animation with blend trees, state machines, IK, and retargeting. Supports concurrent animated characters with smooth transitions and runtime blending.

Key benefit: Natural, responsive character animation with zero per-character setup.
AUDIO

Spatial Audio

HRTF-based 3D spatial audio with binaural rendering, occlusion, reverb zones, and adaptive music layers. Tuned for XR headset speakers and headphones with minimal CPU overhead.

Key benefit: Players can locate sounds naturally in 3D space — critical for immersive XR.

Optimized for XR

Every subsystem is optimized for the demanding frame budgets of VR and AR headsets.

High-Performance VFX

Stunning visual effects without impacting gameplay performance.

Reliable Physics

Consistent gameplay across all platforms.

Immersive Audio

Pristine spatial audio quality at all times.

Explore the SDK XR Features AI Systems