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transparency_3d example tweaks (#4968)

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Fixed a typo, removed unused component, normalized comments added a touch more detail.
This commit is contained in:
MiniaczQ 2022-06-23 18:36:07 +00:00
parent 7e6dd3f03e
commit 33a5f2b977
1 changed files with 5 additions and 8 deletions
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13
examples/3d/transparency_3d.rs
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@ -13,21 +13,18 @@ fn main() {
.run(); .run();
} }
#[derive(Component)]
pub struct FadeTransparency;
fn setup( fn setup(
mut commands: Commands, mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>, mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>, mut materials: ResMut<Assets<StandardMaterial>>,
) { ) {
// Opaque plane // opaque plane, uses `alpha_mode: Opaque` by default
commands.spawn_bundle(PbrBundle { commands.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::Plane { size: 6.0 })), mesh: meshes.add(Mesh::from(shape::Plane { size: 6.0 })),
material: materials.add(Color::rgb(0.3, 0.5, 0.3).into()), material: materials.add(Color::rgb(0.3, 0.5, 0.3).into()),
..default() ..default()
}); });
// transparent sphere, using alpha_mode: Mask // transparent sphere, uses `alpha_mode: Mask(f32)`
commands.spawn_bundle(PbrBundle { commands.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::Icosphere { mesh: meshes.add(Mesh::from(shape::Icosphere {
radius: 0.5, radius: 0.5,
@ -39,7 +36,7 @@ fn setup(
// `fade_transparency` function. // `fade_transparency` function.
// Note that the transparency has no effect on the objects shadow. // Note that the transparency has no effect on the objects shadow.
base_color: Color::rgba(0.2, 0.7, 0.1, 0.0), base_color: Color::rgba(0.2, 0.7, 0.1, 0.0),
// Maks sets a cutoff for transparency. Alpha values below are fully transparent, // Mask sets a cutoff for transparency. Alpha values below are fully transparent,
// alpha values above are fully opaque. // alpha values above are fully opaque.
alpha_mode: AlphaMode::Mask(0.5), alpha_mode: AlphaMode::Mask(0.5),
..default() ..default()
@ -47,7 +44,7 @@ fn setup(
transform: Transform::from_xyz(1.0, 0.5, -1.5), transform: Transform::from_xyz(1.0, 0.5, -1.5),
..default() ..default()
}); });
// transparent cube, using alpha_mode: Blend // transparent cube, uses `alpha_mode: Blend`
commands.spawn_bundle(PbrBundle { commands.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::Cube { size: 1.0 })), mesh: meshes.add(Mesh::from(shape::Cube { size: 1.0 })),
// Notice how there is no need to set the `alpha_mode` explicitly here. // Notice how there is no need to set the `alpha_mode` explicitly here.
@ -57,7 +54,7 @@ fn setup(
transform: Transform::from_xyz(0.0, 0.5, 0.0), transform: Transform::from_xyz(0.0, 0.5, 0.0),
..default() ..default()
}); });
// sphere // opaque sphere
commands.spawn_bundle(PbrBundle { commands.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::Icosphere { mesh: meshes.add(Mesh::from(shape::Icosphere {
radius: 0.5, radius: 0.5,