A video editing and motion graphics library made with Rust

日本語(Japanese)

Tellur is a component-oriented video editing library. It aims to be a general-purpose library capable of handling various video styles.

• Rich expressions like motion graphics
• Variety-show style telops/captions
• Calm tones suitable for explainer videos, etc.

Each element in a video is represented by a combination of components as shown below.

#[component(vector)]
fn Dot(center: Vec2, radius: f32, color: Color) -> impl VectorComponent {
    Circle::builder()
        .radius(radius)
        .fill(Fill {
            paint: Paint::Solid(color),
        })
        .anchored(Anchor::CENTER)
        .snap_to(center)
}

Components are functional and pure, enabling caching at the subtree level.

Additionally, GPU rendering is implemented for most built-in components, making it extremely fast.

Remotion (React)

• Pros: Since it has its own rasterizer, it is easy to create rich expressions that go beyond the limitations of HTML/CSS.
• Cons: The writing style cannot compete with the conciseness of JSX.

Manim (Python)

• Pros: Rendering is fast, and it provides a full suite of tools for video production regardless of genre, including timelines, layouts, and live previews.
• Cons: Complex mathematical expressions are still immature.

You can create a timeline project from a template using tellur create. This generates a Cargo.toml (a cdylib crate) and sample scenes. If executed within a Cargo workspace, it also automatically handles member registration and tellur dependencies.

$ tellur create my-video

You can specify the display name of the timeline with --title (defaults to the directory name if omitted).

tellur live provides a browser preview with hot-rebuilding of the project.

$ tellur live --project path/to/your-video --gpu

• ffmpeg: Required for encoding.
• fontconfig (Linux only): Required for font detection.

• Layout system tutorial — the canvas and flow worlds: Layer, Frame, Flex, anchors, and clipping (日本語)
• Time system tutorial — Phase, Window, events, and the global/local clock axes (日本語)

For AI coding agents, an authoring skill captures the idiomatic "Tellur style" on top of the tutorials.

A getting-started tutorial is under preparation.

MIT