bevy_sprite3d

Use 2d sprites in a 3d bevy scene.

This is a pretty common setup in other engines (unity, godot, etc). Useful for:

• 2d games using bevy's lighting (orthographic camera, 3d sprites)
• 2d games with easier parallax and scale (perspective camera, 3d sprites)
• 2d games in a 3d world (perspective camera, both 3d sprites and meshes)
• 3d games with billboard sprites (a la Delver)

Both meshes and materials are internally cached, so this crate can be used for things like tilemaps without issue.

Examples

Example using bevy_sprite3d:

A more complicated scene: examples/dungeon.rs. Try this one with cargo run --example dungeon.

https://github.com/FraserLee/bevy_sprite3d/assets/30442265/1821b13c-9770-4f4e-a889-f67e06a3cda6

Some more examples. These don't use bevy, but demonstrate the effect style:

Usage

Check out the examples for details. Tl;dr initialize the plugin with

app.add_plugin(Sprite3dPlugin)

and spawn sprites with

fn setup(
    mut commands: Commands,
    images: Res<ImageAssets>, // this is your custom resource populated with asset handles
    mut sprite_params: Sprite3dParams
) {

    // ----------------------- Single Static Sprite ----------------------------

    commands.spawn(Sprite3d {
            image: images.sprite.clone(),

            pixels_per_metre: 400.,

            partial_alpha: true,

            unlit: true,

            ..default()

            // transform: Transform::from_xyz(0., 0., 0.),
            // pivot: Some(Vec2::new(0.5, 0.5)),
            // double_sided: true,

    }.bundle(&mut sprite_params));

    // ------------------- Texture Atlas (Sprite Sheet) ------------------------

    let texture_atlas = TextureAtlas {
        layout: images.layout.clone(),
        index: 3,
    };

    commands.spawn(Sprite3d {
            image: images.sprite_sheet.clone(),

            pixels_per_metre: 32.,
            partial_alpha: true,
            unlit: true,

            ..default()

            // transform: Transform::from_xyz(0., 0., 0.),
            // pivot: Some(Vec2::new(0.5, 0.5)),
            // double_sided: true,

    }.bundle_with_atlas(&mut sprite_params, texture_atlas));
}

One small complication: your image assets should be loaded prior to spawning, as bevy_sprite3d uses some properties of the image (such as size and aspect ratio) in constructing the 3d mesh. Examples show how to do this with Bevy's States.

Versioning