Struct Story 

pub struct Story {
    pub id: &'static str,
    pub category: &'static str,
    pub title: &'static str,
    pub milestone: &'static str,
    pub writeup: &'static str,
    pub build: fn(&Application, &mut Stage),
    pub tick: Option<fn(&mut Stage, f32)>,
}

One interactive demo registered in the storybook.

Each story is responsible for building a fresh Stage when its scene is requested. The optional tick hook lets a story animate per-frame (called before each render).

Fields

id: &'static str

Stable identifier — reserved for future URL-style navigation and cross-session story bookmarking.

category: &'static str

Category — groups stories in the picker (e.g. “Renderer Foundation”, “Scene Graph”, “Graphics”, “Filters”).

title: &'static str

Display title.

milestone: &'static str

Milestone tag (e.g. “M0.5”).

writeup: &'static str

Markdown-flavored write-up shown in the right sidebar.

build: fn(&Application, &mut Stage)

Build the scene from scratch. Called when the story is first selected.

tick: Option<fn(&mut Stage, f32)>

Optional per-frame animation hook. t is seconds since story start.

Implementations

impl Story

pub fn tick(&self, stage: &mut Stage, t: f32)

Resolve the per-frame hook, treating None as a no-op.