bevy-single-variable-function-mesh

A 2D or 3D mesh (bevy::render::mesh::Mesh) generated from a single-variable function f(f32) -> f32.

Examples

We have one math function that generates a half squircle and one that generates a half circle.

fn squircle(x: f32) -> f32 {
    (1.0 - (x).abs().powf(4.0)).powf(0.25)
}

fn circle(x: f32) -> f32 {
    (1.0 - x.powf(2.0)).powf(0.5)
}

commands.spawn(PbrBundle {
    mesh: meshes.add(
        SingleVariableFunctionMesh {
            f: squircle, // or circle
            relative_height: 0.0,
            ..default()
        }
        .into(),
    ),
    material: materials.add(StandardMaterial::default()),
    transform: Transform::from_xyz(-2.5, 1.0, 0.0),
    ..default()
});
commands.spawn(PbrBundle {
    mesh: meshes.add(
        SingleVariableFunctionMesh {
            f: squircle, // or circle
            relative_height: 0.2,
            ..default()
        }
        .into(),
    ),
    material: materials.add(StandardMaterial::default()),
    transform: Transform::from_xyz(0.0, 1.0, 0.0),
    ..default()
});
commands.spawn(PbrBundle {
    mesh: meshes.add(
        SingleVariableFunctionMesh {
            f: squircle, // or circle
            relative_height: 1.0,
            ..default()
        }
        .into(),
    ),
    material: materials.add(StandardMaterial::default()),
    transform: Transform::from_xyz(2.5, 1.0, 0.0),
    ..default()
});

Details

Feel free to add ideas to the bug tracker.
This crate will automatically search for good vertices by comparing the slopes of the input function called f.
The plane in the render scene was created by f: |_x: f32| -> f32 { 20.0 },.

Compatible Bevy Version

bevy	bevy-single-variable-function-mesh
0.13	0.13
0.12	0.12
0.11	0.11

License

Licensed under either of these:

Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)

Contribution