Strata - v1.4.10
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    Class LookAtController

    Look-At Controller with Constraints and Smoothing.

    Rotates objects to face targets with natural motion, angular limits, dead zones, and smooth damping. Perfect for character heads, eyes, cameras, turrets, or any tracking behavior.

    Features:

    • Maximum angle constraints (prevent unrealistic rotations)
    • Dead zone (ignore small movements)
    • Smooth damping (no instant snapping)
    • Exponential smoothing for natural feel

    Use Cases:

    • Character head tracking player
    • Eyes following cursor
    • Camera smooth follow
    • Turret tracking enemies
    • NPCs watching interesting objects
    // Character head tracking player
    const headController = new LookAtController({
      maxAngle: Math.PI / 3,  // Can't turn head more than 60°
      speed: 5,               // Tracking speed
      deadzone: 0.05,         // Ignore tiny movements
      smoothing: 0.1          // Smooth interpolation
    });

    // In update loop
    function animate(deltaTime: number) {
      const playerPos = player.position;
      const headRotation = headController.update(head, playerPos, deltaTime);
      head.quaternion.copy(headRotation);
    }

    // Lazy eye tracking (slow, large deadzone)
    const eyeController = new LookAtController({
      maxAngle: Math.PI / 4,  // Limited range
      speed: 2,               // Slow tracking
      deadzone: 0.2,          // Large deadzone
      smoothing: 0.15         // Very smooth
    });

    // Snappy turret tracking (fast, no deadzone)
    const turretController = new LookAtController({
      maxAngle: Math.PI,      // Full rotation
      speed: 10,              // Fast
      deadzone: 0,            // No deadzone
      smoothing: 0.05         // Minimal smoothing
    });
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    • Parameters

      • object: Object3D
      • target: Vector3
      • deltaTime: number

      Returns Quaternion

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