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Change light defaults & fix light examples (#11581)

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# Objective

Fix https://github.com/bevyengine/bevy/issues/11577.

## Solution

Fix the examples, add a few constants to make setting light values
easier, and change the default lighting settings to be more realistic.
(Now designed for an overcast day instead of an indoor environment)

---

I did not include any example-related changes in here.

## Changelogs (not including breaking changes)

### bevy_pbr

- Added `light_consts` module (included in prelude), which contains
common lux and lumen values for lights.
- Added `AmbientLight::NONE` constant, which is an ambient light with a
brightness of 0.
- Added non-EV100 variants for `ExposureSettings`'s EV100 constants,
which allow easier construction of an `ExposureSettings` from a EV100
constant.

## Breaking changes

### bevy_pbr

The several default lighting values were changed:

- `PointLight`'s default `intensity` is now `2000.0`
- `SpotLight`'s default `intensity` is now `2000.0`
- `DirectionalLight`'s default `illuminance` is now
`light_consts::lux::OVERCAST_DAY` (`1000.`)
- `AmbientLight`'s default `brightness` is now `20.0`
This commit is contained in:
Doonv 2024-02-14 22:43:10 +02:00 committed by GitHub
parent bc98333d7c
commit dc9b486650
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
60 changed files with 261 additions and 295 deletions
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2
crates/bevy_pbr/src/lib.rs
View File

@ -42,7 +42,7 @@ pub mod prelude {
SpotLightBundle,
},
fog::{FogFalloff, FogSettings},
light::{AmbientLight, DirectionalLight, PointLight, SpotLight},
light::{light_consts, AmbientLight, DirectionalLight, PointLight, SpotLight},
light_probe::{
environment_map::{EnvironmentMapLight, ReflectionProbeBundle},
LightProbe,

73
crates/bevy_pbr/src/light.rs
View File

@ -21,6 +21,61 @@ use bevy_utils::tracing::warn;
use crate::*;
/// Constants for operating with the light units: lumens, and lux.
pub mod light_consts {
/// Approximations for converting the wattage of lamps to lumens.
///
/// The **lumen** (symbol: **lm**) is the unit of [luminous flux], a measure
/// of the total quantity of [visible light] emitted by a source per unit of
/// time, in the [International System of Units] (SI).
///
/// For more information, see [wikipedia](https://en.wikipedia.org/wiki/Lumen_(unit))
///
/// [luminous flux]: https://en.wikipedia.org/wiki/Luminous_flux
/// [visible light]: https://en.wikipedia.org/wiki/Visible_light
/// [International System of Units]: https://en.wikipedia.org/wiki/International_System_of_Units
pub mod lumens {
pub const LUMENS_PER_LED_WATTS: f32 = 90.0;
pub const LUMENS_PER_INCANDESCENT_WATTS: f32 = 13.8;
pub const LUMENS_PER_HALOGEN_WATTS: f32 = 19.8;
}
/// Predefined for lux values in several locations.
///
/// The **lux** (symbol: **lx**) is the unit of [illuminance], or [luminous flux] per unit area,
/// in the [International System of Units] (SI). It is equal to one lumen per square metre.
///
/// For more information, see [wikipedia](https://en.wikipedia.org/wiki/Lux)
///
/// [illuminance]: https://en.wikipedia.org/wiki/Illuminance
/// [luminous flux]: https://en.wikipedia.org/wiki/Luminous_flux
/// [International System of Units]: https://en.wikipedia.org/wiki/International_System_of_Units
pub mod lux {
/// The amount of light (lux) in a moonless, overcast night sky. (starlight)
pub const MOONLESS_NIGHT: f32 = 0.0001;
/// The amount of light (lux) during a full moon on a clear night.
pub const FULL_MOON_NIGHT: f32 = 0.05;
/// The amount of light (lux) during the dark limit of civil twilight under a clear sky.
pub const CIVIL_TWILIGHT: f32 = 3.4;
/// The amount of light (lux) in family living room lights.
pub const LIVING_ROOM: f32 = 50.;
/// The amount of light (lux) in an office building's hallway/toilet lighting.
pub const HALLWAY: f32 = 80.;
/// The amount of light (lux) in very dark overcast day
pub const DARK_OVERCAST_DAY: f32 = 100.;
/// The amount of light (lux) in an office.
pub const OFFICE: f32 = 320.;
/// The amount of light (lux) during sunrise or sunset on a clear day.
pub const CLEAR_SUNRISE: f32 = 400.;
/// The amount of light (lux) on a overcast day; typical TV studio lighting
pub const OVERCAST_DAY: f32 = 1000.;
/// The amount of light (lux) in full daylight (not direct sun).
pub const FULL_DAYLIGHT: f32 = 10_000.;
/// The amount of light (lux) in direct sunlight.
pub const DIRECT_SUNLIGHT: f32 = 50_000.;
}
}
/// A light that emits light in all directions from a central point.
///
/// Real-world values for `intensity` (luminous power in lumens) based on the electrical power
@ -58,7 +113,7 @@ impl Default for PointLight {
fn default() -> Self {
PointLight {
color: Color::rgb(1.0, 1.0, 1.0),
intensity: 800.0, // Roughly a 60W non-halogen incandescent bulb
intensity: 2000.0, // Roughly a 20-watt LED bulb
range: 20.0,
radius: 0.0,
shadows_enabled: false,
@ -126,7 +181,7 @@ impl Default for SpotLight {
// a quarter arc attenuating from the center
Self {
color: Color::rgb(1.0, 1.0, 1.0),
intensity: 800.0, // Roughly a 60W non-halogen incandescent bulb
intensity: 2000.0, // Roughly a 20-watt LED bulb
range: 20.0,
radius: 0.0,
shadows_enabled: false,
@ -207,7 +262,7 @@ impl Default for DirectionalLight {
fn default() -> Self {
DirectionalLight {
color: Color::rgb(1.0, 1.0, 1.0),
illuminance: 100000.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: false,
shadow_depth_bias: Self::DEFAULT_SHADOW_DEPTH_BIAS,
shadow_normal_bias: Self::DEFAULT_SHADOW_NORMAL_BIAS,
@ -567,7 +622,7 @@ fn calculate_cascade(
/// # use bevy_ecs::system::ResMut;
/// # use bevy_pbr::AmbientLight;
/// fn setup_ambient_light(mut ambient_light: ResMut<AmbientLight>) {
/// ambient_light.brightness = 20.0;
/// ambient_light.brightness = 100.0;
/// }
/// ```
#[derive(Resource, Clone, Debug, ExtractResource, Reflect)]
@ -581,11 +636,17 @@ pub struct AmbientLight {
impl Default for AmbientLight {
fn default() -> Self {
Self {
color: Color::rgb(1.0, 1.0, 1.0),
brightness: 8.0,
color: Color::WHITE,
brightness: 20.0,
}
}
}
impl AmbientLight {
pub const NONE: AmbientLight = AmbientLight {
color: Color::WHITE,
brightness: 0.0,
};
}
/// Add this component to make a [`Mesh`](bevy_render::mesh::Mesh) not cast shadows.
#[derive(Component, Reflect, Default)]

14
crates/bevy_render/src/camera/camera.rs
View File

@ -96,6 +96,16 @@ pub struct ExposureSettings {
}
impl ExposureSettings {
pub const SUNLIGHT: Self = Self {
ev100: Self::EV100_SUNLIGHT,
};
pub const OVERCAST: Self = Self {
ev100: Self::EV100_OVERCAST,
};
pub const INDOOR: Self = Self {
ev100: Self::EV100_INDOOR,
};
pub const EV100_SUNLIGHT: f32 = 15.0;
pub const EV100_OVERCAST: f32 = 12.0;
pub const EV100_INDOOR: f32 = 7.0;
@ -116,9 +126,7 @@ impl ExposureSettings {
impl Default for ExposureSettings {
fn default() -> Self {
Self {
ev100: Self::EV100_INDOOR,
}
Self::INDOOR
}
}

8
examples/3d/3d_gizmos.rs
View File

@ -41,13 +41,13 @@ fn setup(
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 250000.0,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

8
examples/3d/3d_scene.rs
View File

@ -30,13 +30,13 @@ fn setup(
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 250_000.0,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
// camera

9
examples/3d/3d_shapes.rs
View File

@ -64,14 +64,13 @@ fn setup(
));
}
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 1500000.0,
range: 100.,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(8.0, 16.0, 8.0),
transform: Transform::from_xyz(8.0, 16.0, 8.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

5
examples/3d/3d_viewport_to_world.rs
View File

@ -66,10 +66,7 @@ fn setup(
// light
commands.spawn(DirectionalLightBundle {
transform: Transform::from_translation(Vec3::ONE).looking_at(Vec3::ZERO, Vec3::Y),
directional_light: DirectionalLight {
illuminance: 2000.0,
..default()
},
directional_light: DirectionalLight::default(),
..default()
});

2
examples/3d/animated_material.rs
View File

@ -25,7 +25,7 @@ fn setup(
EnvironmentMapLight {
diffuse_map: asset_server.load("environment_maps/pisa_diffuse_rgb9e5_zstd.ktx2"),
specular_map: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
intensity: 1500.0,
intensity: 1_000.0,
},
));

2
examples/3d/anti_aliasing.rs
View File

@ -289,7 +289,7 @@ fn setup(
// Light
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: 3000.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},

2
examples/3d/atmospheric_fog.rs
View File

@ -61,7 +61,7 @@ fn setup_terrain_scene(
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
color: Color::rgb(0.98, 0.95, 0.82),
illuminance: 3000.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},

8
examples/3d/blend_modes.rs
View File

@ -167,12 +167,12 @@ fn setup(
}
// Light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

8
examples/3d/deferred_rendering.rs
View File

@ -18,10 +18,6 @@ fn main() {
App::new()
.insert_resource(Msaa::Off)
.insert_resource(DefaultOpaqueRendererMethod::deferred())
.insert_resource(AmbientLight {
color: Color::WHITE,
brightness: 1.0 / 5.0f32,
})
.insert_resource(DirectionalLightShadowMap { size: 4096 })
.add_plugins(DefaultPlugins)
.insert_resource(Normal(None))
@ -62,7 +58,7 @@ fn setup(
EnvironmentMapLight {
diffuse_map: asset_server.load("environment_maps/pisa_diffuse_rgb9e5_zstd.ktx2"),
specular_map: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
intensity: 150.0,
intensity: 250.0,
},
DepthPrepass,
MotionVectorPrepass,
@ -72,7 +68,7 @@ fn setup(
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: 4000.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},

8
examples/3d/fog.rs
View File

@ -17,10 +17,12 @@
use bevy::{
pbr::{NotShadowCaster, NotShadowReceiver},
prelude::*,
render::camera::ExposureSettings,
};
fn main() {
App::new()
.insert_resource(AmbientLight::NONE)
.add_plugins(DefaultPlugins)
.add_systems(
Startup,
@ -41,6 +43,9 @@ fn setup_camera_fog(mut commands: Commands) {
},
..default()
},
// This is a dark scene,
// increasing the exposure makes it easier to see
ExposureSettings { ev100: 4.0 },
));
}
@ -114,8 +119,7 @@ fn setup_pyramid_scene(
commands.spawn(PointLightBundle {
transform: Transform::from_xyz(0.0, 1.0, 0.0),
point_light: PointLight {
intensity: 300_000.,
range: 100.,
intensity: 4_000.,
shadows_enabled: true,
..default()
},

7
examples/3d/generate_custom_mesh.rs
View File

@ -57,10 +57,9 @@ fn setup(
});
// Light up the scene.
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 100_000.0,
range: 100.0,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
..default()
},
transform: camera_and_light_transform,

8
examples/3d/lighting.rs
View File

@ -4,7 +4,7 @@
use std::f32::consts::PI;
use bevy::{
pbr::CascadeShadowConfigBuilder,
pbr::{light_consts, CascadeShadowConfigBuilder},
prelude::*,
render::camera::{ExposureSettings, PhysicalCameraParameters},
};
@ -14,8 +14,8 @@ fn main() {
.add_plugins(DefaultPlugins)
.insert_resource(Parameters(PhysicalCameraParameters {
aperture_f_stops: 1.0,
shutter_speed_s: 1.0 / 15.0,
sensitivity_iso: 400.0,
shutter_speed_s: 1.0 / 100.0,
sensitivity_iso: 100.0,
}))
.add_systems(Startup, setup)
.add_systems(Update, (update_exposure, movement, animate_light_direction))
@ -207,7 +207,7 @@ fn setup(
// directional 'sun' light
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: 100.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},

4
examples/3d/lightmaps.rs
View File

@ -21,10 +21,10 @@ fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
..default()
});
commands.spawn(Camera3dBundle {
commands.spawn((Camera3dBundle {
transform: Transform::from_xyz(-278.0, 273.0, 800.0),
..default()
});
},));
}
fn add_lightmaps_to_meshes(

4
examples/3d/load_gltf.rs
View File

@ -25,13 +25,13 @@ fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
EnvironmentMapLight {
diffuse_map: asset_server.load("environment_maps/pisa_diffuse_rgb9e5_zstd.ktx2"),
specular_map: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
intensity: 150.0,
intensity: 250.0,
},
));
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: 2000.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},

8
examples/3d/orthographic.rs
View File

@ -59,10 +59,10 @@ fn setup(
..default()
});
// light
commands.spawn(PointLightBundle {
transform: Transform::from_xyz(3.0, 8.0, 5.0),
point_light: PointLight {
intensity: 150_000.0,
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(3.0, 8.0, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
..default()
},
..default()

2
examples/3d/parallax_mapping.rs
View File

@ -224,7 +224,7 @@ fn setup(
.spawn(PointLightBundle {
transform: Transform::from_xyz(1.8, 0.7, -1.1),
point_light: PointLight {
intensity: 50_000.0,
intensity: 100_000.0, // Mini-sun point light
shadows_enabled: true,
..default()
},

8
examples/3d/parenting.rs
View File

@ -55,10 +55,10 @@ fn setup(
});
});
// light
commands.spawn(PointLightBundle {
transform: Transform::from_xyz(4.0, 5.0, -4.0),
point_light: PointLight {
intensity: 150_000.0,
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(4.0, 5.0, -4.0).looking_at(Vec3::ZERO, Vec3::Y),
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
..default()
},
..default()

16
examples/3d/pbr.rs
View File

@ -1,6 +1,6 @@
//! This example shows how to configure Physically Based Rendering (PBR) parameters.
use bevy::{asset::LoadState, prelude::*};
use bevy::{asset::LoadState, prelude::*, render::camera::ExposureSettings};
fn main() {
App::new()
@ -51,17 +51,6 @@ fn setup(
..default()
});
// light
commands.spawn(PointLightBundle {
transform: Transform::from_xyz(50.0, 50.0, 50.0),
point_light: PointLight {
intensity: 100_000_000.,
range: 100.,
..default()
},
..default()
});
// labels
commands.spawn(
TextBundle::from_section(
@ -132,8 +121,9 @@ fn setup(
EnvironmentMapLight {
diffuse_map: asset_server.load("environment_maps/pisa_diffuse_rgb9e5_zstd.ktx2"),
specular_map: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
intensity: 150.0,
intensity: 7000.0,
},
ExposureSettings::OVERCAST,
));
}

22
examples/3d/reflection_probes.rs
View File

@ -8,6 +8,7 @@
use bevy::core_pipeline::Skybox;
use bevy::prelude::*;
use bevy::render::camera::ExposureSettings;
use std::fmt::{Display, Formatter, Result as FmtResult};
@ -105,14 +106,17 @@ fn spawn_scene(commands: &mut Commands, asset_server: &AssetServer) {
// Spawns the camera.
fn spawn_camera(commands: &mut Commands) {
commands.spawn(Camera3dBundle {
camera: Camera {
hdr: true,
commands.spawn((
Camera3dBundle {
camera: Camera {
hdr: true,
..default()
},
transform: Transform::from_xyz(-6.483, 0.325, 4.381).looking_at(Vec3::ZERO, Vec3::Y),
..default()
},
transform: Transform::from_xyz(-6.483, 0.325, 4.381).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
ExposureSettings::OVERCAST,
));
}
// Creates the sphere mesh and spawns it.
@ -150,7 +154,7 @@ fn spawn_reflection_probe(commands: &mut Commands, cubemaps: &Cubemaps) {
environment_map: EnvironmentMapLight {
diffuse_map: cubemaps.diffuse.clone(),
specular_map: cubemaps.specular_reflection_probe.clone(),
intensity: 150.0,
intensity: 5000.0,
},
});
}
@ -186,7 +190,7 @@ fn add_environment_map_to_camera(
.insert(create_camera_environment_map_light(&cubemaps))
.insert(Skybox {
image: cubemaps.skybox.clone(),
brightness: 150.0,
brightness: 5000.0,
});
}
}
@ -305,7 +309,7 @@ fn create_camera_environment_map_light(cubemaps: &Cubemaps) -> EnvironmentMapLig
EnvironmentMapLight {
diffuse_map: cubemaps.diffuse.clone(),
specular_map: cubemaps.specular_environment_map.clone(),
intensity: 150.0,
intensity: 5000.0,
}
}

12
examples/3d/render_to_texture.rs
View File

@ -89,17 +89,7 @@ fn setup(
// NOTE: we add the light to all layers so it affects both the rendered-to-texture cube, and the cube on which we display the texture
// Setting the layer to RenderLayers::layer(0) would cause the main view to be lit, but the rendered-to-texture cube to be unlit.
// Setting the layer to RenderLayers::layer(1) would cause the rendered-to-texture cube to be lit, but the main view to be unlit.
commands.spawn((
PointLightBundle {
transform: Transform::from_translation(Vec3::new(0.0, 0.0, 10.0)),
point_light: PointLight {
intensity: 150_000.0,
..default()
},
..default()
},
RenderLayers::all(),
));
commands.spawn((DirectionalLightBundle::default(), RenderLayers::all()));
commands.spawn((
Camera3dBundle {

7
examples/3d/shadow_biases.rs
View File

@ -3,7 +3,10 @@
#[path = "../helpers/camera_controller.rs"]
mod camera_controller;
use bevy::{pbr::ShadowFilteringMethod, prelude::*};
use bevy::{
pbr::{light_consts, ShadowFilteringMethod},
prelude::*,
};
use camera_controller::{CameraController, CameraControllerPlugin};
fn main() {
@ -68,7 +71,7 @@ fn setup(
});
builder.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: 1500.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadow_depth_bias: 0.0,
shadow_normal_bias: 0.0,
shadows_enabled: true,

8
examples/3d/shadow_caster_receiver.rs
View File

@ -3,7 +3,7 @@
use std::f32::consts::PI;
use bevy::{
pbr::{CascadeShadowConfigBuilder, NotShadowCaster, NotShadowReceiver},
pbr::{light_consts, CascadeShadowConfigBuilder, NotShadowCaster, NotShadowReceiver},
prelude::*,
};
@ -92,7 +92,7 @@ fn setup(
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: 1500.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},
@ -128,7 +128,7 @@ fn toggle_light(
for mut light in &mut point_lights {
light.intensity = if light.intensity == 0.0 {
println!("Using PointLight");
500_000.0
1_000_000.0 // Mini-sun point light
} else {
0.0
};
@ -136,7 +136,7 @@ fn toggle_light(
for mut light in &mut directional_lights {
light.illuminance = if light.illuminance == 0.0 {
println!("Using DirectionalLight");
1500.0
light_consts::lux::OVERCAST_DAY
} else {
0.0
};

7
examples/3d/spherical_area_lights.rs
View File

@ -4,6 +4,7 @@ use bevy::prelude::*;
fn main() {
App::new()
.insert_resource(AmbientLight::NONE)
.add_plugins(DefaultPlugins)
.add_systems(Startup, setup)
.run();
@ -15,10 +16,10 @@ fn setup(
mut materials: ResMut<Assets<StandardMaterial>>,
) {
// camera
commands.spawn(Camera3dBundle {
commands.spawn((Camera3dBundle {
transform: Transform::from_xyz(0.2, 1.5, 2.5).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
},));
// plane
commands.spawn(PbrBundle {
@ -58,7 +59,7 @@ fn setup(
.with_children(|children| {
children.spawn(PointLightBundle {
point_light: PointLight {
intensity: 100_000.0,
intensity: 4000.0,
radius,
color: Color::rgb(0.2, 0.2, 1.0),
..default()

1
examples/3d/split_screen.rs
View File

@ -37,7 +37,6 @@ fn setup(
commands.spawn(DirectionalLightBundle {
transform: Transform::from_rotation(Quat::from_euler(EulerRot::ZYX, 0.0, 1.0, -PI / 4.)),
directional_light: DirectionalLight {
illuminance: 1500.0,
shadows_enabled: true,
..default()
},

18
examples/3d/spotlight.rs
View File

@ -2,11 +2,7 @@
use std::f32::consts::*;
use bevy::{
diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
pbr::NotShadowCaster,
prelude::*,
};
use bevy::{pbr::NotShadowCaster, prelude::*};
use rand::{rngs::StdRng, Rng, SeedableRng};
fn main() {
@ -15,11 +11,7 @@ fn main() {
brightness: 4.0,
..default()
})
.add_plugins((
DefaultPlugins,
FrameTimeDiagnosticsPlugin,
LogDiagnosticsPlugin::default(),
))
.add_plugins(DefaultPlugins)
.add_systems(Startup, setup)
.add_systems(Update, (light_sway, movement))
.run();
@ -82,7 +74,7 @@ fn setup(
transform: Transform::from_xyz(1.0 + x, 2.0, z)
.looking_at(Vec3::new(1.0 + x, 0.0, z), Vec3::X),
spot_light: SpotLight {
intensity: 100_000.0, // lumens
intensity: 4000.0, // lumens
color: Color::WHITE,
shadows_enabled: true,
inner_angle: PI / 4.0 * 0.85,
@ -111,14 +103,14 @@ fn setup(
}
// camera
commands.spawn((Camera3dBundle {
commands.spawn(Camera3dBundle {
camera: Camera {
hdr: true,
..default()
},
transform: Transform::from_xyz(-4.0, 5.0, 10.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
},));
});
}
fn light_sway(time: Res<Time>, mut query: Query<(&mut Transform, &mut SpotLight)>) {

6
examples/3d/ssao.rs
View File

@ -3,7 +3,7 @@
use bevy::{
core_pipeline::experimental::taa::{TemporalAntiAliasBundle, TemporalAntiAliasPlugin},
pbr::{
ScreenSpaceAmbientOcclusionBundle, ScreenSpaceAmbientOcclusionQualityLevel,
light_consts, ScreenSpaceAmbientOcclusionBundle, ScreenSpaceAmbientOcclusionQualityLevel,
ScreenSpaceAmbientOcclusionSettings,
},
prelude::*,
@ -14,7 +14,7 @@ use std::f32::consts::PI;
fn main() {
App::new()
.insert_resource(AmbientLight {
brightness: 750.0,
brightness: light_consts::lux::OVERCAST_DAY,
..default()
})
.add_plugins((DefaultPlugins, TemporalAntiAliasPlugin))
@ -81,7 +81,7 @@ fn setup(
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: 3000.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},

6
examples/3d/tonemapping.rs
View File

@ -2,7 +2,7 @@
use bevy::{
core_pipeline::tonemapping::Tonemapping,
pbr::CascadeShadowConfigBuilder,
pbr::{light_consts, CascadeShadowConfigBuilder},
prelude::*,
reflect::TypePath,
render::{
@ -76,7 +76,7 @@ fn setup(
EnvironmentMapLight {
diffuse_map: asset_server.load("environment_maps/pisa_diffuse_rgb9e5_zstd.ktx2"),
specular_map: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
intensity: 150.0,
intensity: 50.0,
},
));
@ -192,7 +192,7 @@ fn setup_basic_scene(
DirectionalLightBundle {
directional_light: DirectionalLight {
shadows_enabled: true,
illuminance: 3000.0,
illuminance: light_consts::lux::OVERCAST_DAY,
..default()
},
transform: Transform::from_rotation(Quat::from_euler(

8
examples/3d/transmission.rs
View File

@ -27,7 +27,7 @@ use bevy::{
},
pbr::{NotShadowCaster, PointLightShadowMap, TransmittedShadowReceiver},
prelude::*,
render::camera::TemporalJitter,
render::camera::{ExposureSettings, TemporalJitter},
render::view::ColorGrading,
};
@ -35,7 +35,6 @@ use bevy::{
use bevy::core_pipeline::experimental::taa::{
TemporalAntiAliasBundle, TemporalAntiAliasPlugin, TemporalAntiAliasSettings,
};
use rand::random;
fn main() {
@ -311,7 +310,7 @@ fn setup(
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: 60_000.0,
intensity: 4_000.0,
radius: 0.2,
range: 5.0,
shadows_enabled: true,
@ -345,6 +344,7 @@ fn setup(
specular_map: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
},
BloomSettings::default(),
ExposureSettings { ev100: 6.0 },
));
// Controls Text
@ -634,7 +634,7 @@ fn flicker_system(
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 = 60_000.0 + 3000.0 * (a + b + c);
light.intensity = 4_000.0 + 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));

28
examples/3d/transparency_3d.rs
View File

@ -18,13 +18,14 @@ fn setup(
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
) {
// opaque plane, uses `alpha_mode: Opaque` by default
// Opaque plane, uses `alpha_mode: Opaque` by default
commands.spawn(PbrBundle {
mesh: meshes.add(Plane3d::default().mesh().size(6.0, 6.0)),
material: materials.add(Color::rgb(0.3, 0.5, 0.3)),
..default()
});
// transparent sphere, uses `alpha_mode: Mask(f32)`
// Transparent sphere, uses `alpha_mode: Mask(f32)`
commands.spawn(PbrBundle {
mesh: meshes.add(Sphere::new(0.5).mesh().ico(3).unwrap()),
material: materials.add(StandardMaterial {
@ -41,7 +42,8 @@ fn setup(
transform: Transform::from_xyz(1.0, 0.5, -1.5),
..default()
});
// transparent unlit sphere, uses `alpha_mode: Mask(f32)`
// Transparent unlit sphere, uses `alpha_mode: Mask(f32)`
commands.spawn(PbrBundle {
mesh: meshes.add(Sphere::new(0.5).mesh().ico(3).unwrap()),
material: materials.add(StandardMaterial {
@ -53,7 +55,8 @@ fn setup(
transform: Transform::from_xyz(-1.0, 0.5, -1.5),
..default()
});
// transparent cube, uses `alpha_mode: Blend`
// Transparent cube, uses `alpha_mode: Blend`
commands.spawn(PbrBundle {
mesh: meshes.add(Cuboid::default()),
// Notice how there is no need to set the `alpha_mode` explicitly here.
@ -63,24 +66,27 @@ fn setup(
transform: Transform::from_xyz(0.0, 0.5, 0.0),
..default()
});
// opaque sphere
// Opaque sphere
commands.spawn(PbrBundle {
mesh: meshes.add(Sphere::new(0.5).mesh().ico(3).unwrap()),
material: materials.add(Color::rgb(0.7, 0.2, 0.1)),
transform: Transform::from_xyz(0.0, 0.5, -1.5),
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 1_000_000.0,
// Light
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
// camera
// Camera
commands.spawn(Camera3dBundle {
transform: Transform::from_xyz(-2.0, 3.0, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()

21
examples/3d/two_passes.rs
View File

@ -9,36 +9,39 @@ fn main() {
.run();
}
/// set up a simple 3D scene
/// Set up a simple 3D scene
fn setup(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
) {
// plane
// Plane
commands.spawn(PbrBundle {
mesh: meshes.add(Plane3d::default().mesh().size(5.0, 5.0)),
material: materials.add(Color::rgb(0.3, 0.5, 0.3)),
..default()
});
// cube
// Cube
commands.spawn(PbrBundle {
mesh: meshes.add(Cuboid::default()),
material: materials.add(Color::rgb(0.8, 0.7, 0.6)),
transform: Transform::from_xyz(0.0, 0.5, 0.0),
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 500_000.0,
// Light
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
// camera
// Camera
commands.spawn(Camera3dBundle {
transform: Transform::from_xyz(-2.0, 2.5, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()

2
examples/3d/update_gltf_scene.rs
View File

@ -19,7 +19,7 @@ fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(4.0, 25.0, 8.0).looking_at(Vec3::ZERO, Vec3::Y),
directional_light: DirectionalLight {
illuminance: 2000.0,
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},

14
examples/3d/vertex_colors.rs
View File

@ -42,17 +42,19 @@ fn setup(
transform: Transform::from_xyz(0.0, 0.5, 0.0),
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 500_000.0,
// Light
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(4.0, 5.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
// camera
// Camera
commands.spawn(Camera3dBundle {
transform: Transform::from_xyz(-2.0, 2.5, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()

4
examples/3d/wireframe.rs
View File

@ -94,9 +94,9 @@ fn setup(
// light
commands.spawn(PointLightBundle {
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(0.0, 2.0, 0.0),
point_light: PointLight {
intensity: 150_000.0,
intensity: 2000.0,
..default()
},
..default()

5
examples/animation/animated_fox.rs
View File

@ -8,10 +8,6 @@ use bevy::{animation::RepeatAnimation, pbr::CascadeShadowConfigBuilder, prelude:
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.insert_resource(AmbientLight {
color: Color::WHITE,
brightness: 150.0,
})
.add_systems(Startup, setup)
.add_systems(
Update,
@ -54,7 +50,6 @@ fn setup(
commands.spawn(DirectionalLightBundle {
transform: Transform::from_rotation(Quat::from_euler(EulerRot::ZYX, 0.0, 1.0, -PI / 4.)),
directional_light: DirectionalLight {
illuminance: 2000.0,
shadows_enabled: true,
..default()
},

8
examples/animation/cubic_curve.rs
View File

@ -47,14 +47,12 @@ fn setup(
));
// Some light to see something
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 1_500_000.,
range: 100.,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(8., 16., 8.),
transform: Transform::from_xyz(8., 16., 8.).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

6
examples/animation/morph_targets.rs
View File

@ -44,11 +44,7 @@ fn setup(asset_server: Res<AssetServer>, mut commands: Commands) {
..default()
});
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
color: Color::WHITE,
illuminance: 1000.0,
..default()
},
directional_light: DirectionalLight::default(),
transform: Transform::from_rotation(Quat::from_rotation_z(PI / 2.0)),
..default()
});

9
examples/asset/asset_loading.rs
View File

@ -79,12 +79,9 @@ fn setup(
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_xyz(4.0, 5.0, 4.0),
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight::default(),
transform: Transform::from_xyz(4.0, 5.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
// camera

9
examples/asset/hot_asset_reloading.rs
View File

@ -27,12 +27,9 @@ fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_xyz(4.0, 5.0, 4.0),
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight::default(),
transform: Transform::from_xyz(4.0, 5.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
// camera

7
examples/audio/spatial_audio_3d.rs
View File

@ -56,13 +56,12 @@ fn setup(
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 1_000_000.0,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

4
examples/ecs/iter_combinations.rs
View File

@ -7,7 +7,7 @@ fn main() {
App::new()
.add_plugins(DefaultPlugins)
.insert_resource(AmbientLight {
brightness: 0.03,
brightness: 1.0,
..default()
})
.insert_resource(ClearColor(Color::BLACK))
@ -114,7 +114,7 @@ fn generate_bodies(
p.spawn(PointLightBundle {
point_light: PointLight {
color: Color::WHITE,
intensity: 100_000.0,
intensity: 500_000.0,
range: 100.0,
radius: star_radius,
..default()

17
examples/shader/array_texture.rs
View File

@ -33,20 +33,9 @@ fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..Default::default()
},
transform: Transform::from_xyz(-3.0, 2.0, -1.0),
..Default::default()
});
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..Default::default()
},
transform: Transform::from_xyz(3.0, 2.0, 1.0),
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight::default(),
transform: Transform::from_xyz(3.0, 2.0, 1.0).looking_at(Vec3::ZERO, Vec3::Y),
..Default::default()
});

15
examples/shader/extended_material.rs
View File

@ -45,11 +45,8 @@ fn setup(
// light
commands.spawn((
PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
DirectionalLightBundle {
transform: Transform::from_xyz(1.0, 1.0, 1.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
},
Rotate,
@ -66,12 +63,8 @@ fn setup(
struct Rotate;
fn rotate_things(mut q: Query<&mut Transform, With<Rotate>>, time: Res<Time>) {
for mut t in q.iter_mut() {
t.translation = Vec3::new(
time.elapsed_seconds().sin(),
0.5,
time.elapsed_seconds().cos(),
) * 4.0;
for mut t in &mut q {
t.rotate_y(time.delta_seconds());
}
}

9
examples/shader/post_processing.rs
View File

@ -333,14 +333,7 @@ fn setup(
Rotates,
));
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_translation(Vec3::new(0.0, 0.0, 10.0)),
..default()
});
commands.spawn(DirectionalLightBundle::default());
}
#[derive(Component)]

9
examples/shader/shader_material_screenspace_texture.rs
View File

@ -29,12 +29,9 @@ fn setup(
material: standard_materials.add(Color::rgb(0.3, 0.5, 0.3)),
..default()
});
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight::default(),
transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

7
examples/shader/shader_prepass.rs
View File

@ -123,13 +123,12 @@ fn setup(
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 300_000.0,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

2
examples/stress_tests/many_cubes.rs
View File

@ -190,7 +190,7 @@ fn setup(
}
}
commands.spawn(DirectionalLightBundle { ..default() });
commands.spawn(DirectionalLightBundle::default());
}
fn init_textures(args: &Args, images: &mut Assets<Image>) -> Vec<Handle<Image>> {

5
examples/stress_tests/many_foxes.rs
View File

@ -65,10 +65,6 @@ fn main() {
moving: true,
sync: args.sync,
})
.insert_resource(AmbientLight {
color: Color::WHITE,
brightness: 100.0,
})
.add_systems(Startup, setup)
.add_systems(
Update,
@ -203,7 +199,6 @@ fn setup(
commands.spawn(DirectionalLightBundle {
transform: Transform::from_rotation(Quat::from_euler(EulerRot::ZYX, 0.0, 1.0, -PI / 4.)),
directional_light: DirectionalLight {
illuminance: 3000.0,
shadows_enabled: true,
..default()
},

2
examples/stress_tests/many_lights.rs
View File

@ -48,7 +48,7 @@ fn setup(
warn!(include_str!("warning_string.txt"));
const LIGHT_RADIUS: f32 = 0.3;
const LIGHT_INTENSITY: f32 = 5.0;
const LIGHT_INTENSITY: f32 = 10.0;
const RADIUS: f32 = 50.0;
const N_LIGHTS: usize = 100_000;

6
examples/tools/scene_viewer/main.rs
View File

@ -149,11 +149,7 @@ fn setup_scene_after_load(
if !scene_handle.has_light {
info!("Spawning a directional light");
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: 3000.0,
shadows_enabled: false,
..default()
},
transform: Transform::from_xyz(1.0, 1.0, 0.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

8
examples/transforms/3d_rotation.rs
View File

@ -41,12 +41,8 @@ fn setup(
});
// Add a light source so we can see clearly.
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_translation(Vec3::ONE * 3.0),
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(3.0, 3.0, 3.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
}

8
examples/transforms/scale.rs
View File

@ -57,12 +57,8 @@ fn setup(
});
// Add a light source for better 3d visibility.
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_translation(Vec3::ONE * 3.0),
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(3.0, 3.0, 3.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
}

8
examples/transforms/transform.rs
View File

@ -86,12 +86,8 @@ fn setup(
});
// Add a light source for better 3d visibility.
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_translation(Vec3::ONE * 3.0),
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(3.0, 3.0, 3.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
}

8
examples/transforms/translation.rs
View File

@ -55,12 +55,8 @@ fn setup(
});
// Add a light source for better 3d visibility.
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_translation(Vec3::ONE * 3.0),
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(3.0, 3.0, 3.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
}

9
examples/ui/render_ui_to_texture.rs
View File

@ -59,14 +59,7 @@ fn setup(
let image_handle = images.add(image);
// Light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 500_000.0,
..default()
},
transform: Transform::from_translation(Vec3::new(0.0, 0.0, 10.0)),
..default()
});
commands.spawn(DirectionalLightBundle::default());
let texture_camera = commands
.spawn(Camera2dBundle {

10
examples/window/low_power.rs
View File

@ -156,13 +156,9 @@ pub(crate) mod test_setup {
},
Rotator,
));
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 1_000_000.0,
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(1.0, 1.0, 1.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
commands.spawn(Camera3dBundle {

8
examples/window/multiple_windows.rs
View File

@ -18,12 +18,8 @@ fn setup_scene(mut commands: Commands, asset_server: Res<AssetServer>) {
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 150_000.0,
..default()
},
transform: Transform::from_xyz(4.0, 5.0, 4.0),
commands.spawn(DirectionalLightBundle {
transform: Transform::from_xyz(3.0, 3.0, 3.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});

7
examples/window/screenshot.rs
View File

@ -47,13 +47,12 @@ fn setup(
..default()
});
// light
commands.spawn(PointLightBundle {
point_light: PointLight {
intensity: 500_000.0,
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
shadows_enabled: true,
..default()
},
transform: Transform::from_xyz(4.0, 8.0, 4.0),
transform: Transform::from_xyz(3.0, 3.0, 3.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
// camera