Struct Tween 

pub struct Tween {
    pub keyframes: Vec<Keyframe>,
    pub properties: TweenProperties,
    pub interpolation: Interpolation,
    pub target_node_index: usize,
}

Fields

keyframes: Vec<Keyframe>

properties: TweenProperties

interpolation: Interpolation

target_node_index: usize

Implementations

impl Tween

pub fn interpolate( &self, time: f32, ) -> Result<Option<TweenProperty>, InterpolationError>

Compute the interpolated tween property at the given time.

If the given time is before the first keyframe or after the the last keyframe, Ok(None) is returned.

See https://github.com/KhronosGroup/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_007_Animations.md

pub fn interpolate_wrap( &self, time: f32, ) -> Result<Option<TweenProperty>, InterpolationError>

Compute the interpolated tween property at the given time.

If the time is greater than the last keyframe, the time will be wrapped to loop the tween.

Returns None if the properties don’t match.

pub fn length_in_seconds(&self) -> f32

pub fn get_first_keyframe_property(&self) -> Option<TweenProperty>

pub fn get_last_keyframe_property(&self) -> Option<TweenProperty>

Trait Implementations

impl Clone for Tween

fn clone(&self) -> Tween

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tween

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

Formats the value using the given formatter.