# 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`
		
			
				
	
	
		
			41 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			41 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
//! Hot reloading allows you to modify assets files to be immediately reloaded while your game is
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//! running. This lets you immediately see the results of your changes without restarting the game.
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//! This example illustrates hot reloading mesh changes.
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//!
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//! Note that hot asset reloading requires the [`AssetWatcher`](bevy::asset::io::AssetWatcher) to be enabled
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//! for your current platform. For desktop platforms, enable the `file_watcher` cargo feature.
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use bevy::prelude::*;
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fn main() {
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    App::new()
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        .add_plugins(DefaultPlugins)
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        .add_systems(Startup, setup)
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        .run();
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}
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
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    // Load our mesh:
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    let scene_handle = asset_server.load("models/torus/torus.gltf#Scene0");
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    // Any changes to the mesh will be reloaded automatically! Try making a change to torus.gltf.
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    // You should see the changes immediately show up in your app.
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    // mesh
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    commands.spawn(SceneBundle {
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        scene: scene_handle,
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        ..default()
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    });
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    // light
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    commands.spawn(DirectionalLightBundle {
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        directional_light: DirectionalLight::default(),
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        transform: Transform::from_xyz(4.0, 5.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
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        ..default()
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    });
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    // camera
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    commands.spawn(Camera3dBundle {
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        transform: Transform::from_xyz(2.0, 2.0, 6.0).looking_at(Vec3::ZERO, Vec3::Y),
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        ..default()
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    });
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}
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