Struct LookAtSolver 

pub struct LookAtSolver;

Rotates a joint to aim at a target (look-at constraint).

Used for head/eye tracking, weapon aiming, etc.

Implementations

impl LookAtSolver

pub fn look_at_quat( eye_position: Vec3, target: Vec3, forward: Vec3, up: Vec3, ) -> Quat

Compute the rotation quaternion that rotates forward to point at target from eye_position, with an up hint vector.

pub fn look_at_weighted( eye_position: Vec3, target: Vec3, forward: Vec3, up: Vec3, weight: f32, ) -> Quat

Partially rotate toward target with given weight [0, 1].

pub fn look_at_clamped( eye_position: Vec3, target: Vec3, forward: Vec3, up: Vec3, max_angle: f32, ) -> Quat

Apply with angle limits: clamp the resulting rotation to ±max_angle.