Struct CameraTrack 

pub struct CameraTrack { /* private fields */ }

A time-sorted sequence of camera keyframes for animation.

Build the track with push, then call interpolate_camera each frame to get a smoothly interpolated CameraTarget that you can apply to a Camera.

Center and distance are interpolated with a Catmull-Rom spline. Orientation is interpolated with spherical linear interpolation (slerp) between adjacent keyframes.

Implementations

impl CameraTrack

pub fn new() -> Self

Create an empty track.

pub fn from_keyframes(keyframes: Vec<(f64, CameraTarget)>) -> Self

Create a track from a pre-built list of (time, target) pairs.

The list is sorted by time; duplicate times are kept (the later one wins during interpolation).

pub fn push(&mut self, time: f64, target: CameraTarget)

Append a keyframe at time seconds, keeping the list sorted.

pub fn keyframes(&self) -> &[(f64, CameraTarget)]

Return a slice of all keyframes in time order.

pub fn duration(&self) -> f64

Duration from the first to the last keyframe, or 0.0 if empty.

pub fn is_empty(&self) -> bool

Return true if the track has no keyframes.

pub fn len(&self) -> usize

Number of keyframes.

Trait Implementations

impl Clone for CameraTrack

fn clone(&self) -> CameraTrack

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CameraTrack

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CameraTrack

fn default() -> CameraTrack

Returns the “default value” for a type.