Struct PointCache 

pub struct PointCache {
    pub header: PointCacheHeader,
    pub frames: Vec<Vec<[f32; 3]>>,
}

In-memory point cache: per-frame vertex positions.

Fields

header: PointCacheHeader

frames: Vec<Vec<[f32; 3]>>

All frames: outer = frame index, inner = per-vertex [x, y, z].

Implementations

impl PointCache

pub fn new(vertex_count: usize, fps: f32) -> Self

Create a new empty cache for the given vertex count and frame rate.

pub fn add_frame(&mut self, positions: Vec<[f32; 3]>) -> Result<()>

Append a frame. Returns an error if the position count does not match.

pub fn frame_count(&self) -> usize

Number of frames currently stored.

pub fn vertex_count(&self) -> usize

Number of vertices per frame.

pub fn duration(&self) -> f32

Total duration in seconds.

pub fn get_frame(&self, index: usize) -> Option<&Vec<[f32; 3]>>

Get a reference to a frame by index.

pub fn sample(&self, t: f32) -> Option<Vec<[f32; 3]>>

Interpolate vertex positions at fractional frame time t (range: 0 .. frame_count-1).

Returns None if the cache has fewer than two frames or t is out of range.

Trait Implementations

impl Clone for PointCache

fn clone(&self) -> PointCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PointCache

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

Formats the value using the given formatter.