Mirrors/bevy
2
0
Fork 0
mirror of https://github.com/bevyengine/bevy synced 2024-11-26 22:50:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

Make candle light and flame flicker

Browse source
This commit is contained in:
Marco Buono 2023-04-16 03:25:27 -03:00
parent fa26e796ef
commit 18bfd50dfb
1 changed files with 37 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

48
examples/3d/transmission.rs
View file

@ -33,7 +33,7 @@ fn main() {
..default()
})
.add_systems(Startup, setup)
.add_systems(Update, example_control_system);
.add_systems(Update, (example_control_system, flicker_system));
// Unfortunately, MSAA and HDR are not supported simultaneously under WebGL.
// Since this example uses HDR, we must disable MSAA for WASM builds, at least
@ -147,6 +147,7 @@ fn setup(
transform: Transform::from_xyz(-1.0, 1.15, 0.0).with_scale(Vec3::new(0.1, 0.2, 0.1)),
..default()
},
Flicker,
NotShadowCaster,
));
@ -237,18 +238,21 @@ fn setup(
));
// Candle Light
commands.spawn(PointLightBundle {
transform: Transform::from_xyz(-1.0, 1.7, 0.0),
point_light: PointLight {
color: Color::ANTIQUE_WHITE * 0.8 + Color::ORANGE_RED * 0.2,
intensity: 1600.0,
radius: 0.2,
range: 5.0,
shadows_enabled: true,
commands.spawn((
PointLightBundle {
transform: Transform::from_xyz(-1.0, 1.7, 0.0),
point_light: PointLight {
color: Color::ANTIQUE_WHITE * 0.8 + Color::ORANGE_RED * 0.2,
intensity: 1600.0,
radius: 0.2,
range: 5.0,
shadows_enabled: true,
..default()
},
..default()
},
..default()
});
Flicker,
));
// Camera
commands.spawn((
@ -304,6 +308,9 @@ fn setup(
));
}
#[derive(Component)]
struct Flicker;
#[derive(Component)]
struct ExampleControls {
diffuse_transmission: bool,
@ -426,3 +433,22 @@ fn example_control_system(
state.perceptual_roughness,
);
}
fn flicker_system(
mut flame: Query<&mut Transform, (With<Flicker>, With<Handle<Mesh>>)>,
mut light: Query<(&mut PointLight, &mut Transform), (With<Flicker>, Without<Handle<Mesh>>)>,
time: Res<Time>,
) {
let s = time.elapsed_seconds();
let a = (s * 6.0).cos() * 0.0125 + (s * 4.0).cos() * 0.025;
let b = (s * 5.0).cos() * 0.0125 + (s * 3.0).cos() * 0.025;
let c = (s * 7.0).cos() * 0.0125 + (s * 2.0).cos() * 0.025;
let (mut light, mut light_transform) = light.single_mut();
let mut flame_transform = flame.single_mut();
light.intensity = 1600.0 + 3000.0 * (a + b + c);
flame_transform.translation = Vec3::new(-1.0, 1.23, 0.0);
flame_transform.look_at(Vec3::new(-1.0 - c, 1.7 - b, 0.0 - a), Vec3::X);
flame_transform.rotate(Quat::from_euler(EulerRot::XYZ, 0.0, 0.0, PI / 2.0));
light_transform.translation = Vec3::new(-1.0 - c, 1.7, 0.0 - a);
flame_transform.translation = Vec3::new(-1.0 - c, 1.23, 0.0 - a);
}