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Rosy 83a1c07c01
lighting.rs example: Improved ambient light showcase (#19658) 
# Objective

As someone who is currently learning Bevy, I found the implementation of
the ambient light in the 3d/lighting.rs example unsatisfactory.

## Solution

- I adjusted the brightness of the ambient light in the scene to 200
(where the default is 80). It was previously 0.02, a value so low it has
no noticeable effect.
- I added a keybind (space bar) to toggle the ambient light, allowing
users to see the difference it makes. I also added text showing the
state of the ambient light (on, off) and text showing the keybind.

I'm very new to Bevy and Rust, so apologies if any of this code is not
up to scratch.

## Testing

I checked all the text still updates correctly and all keybinds still
work. In my testing, it looks to work okay.
I'd appreciate others testing too, just to make sure. 

---

## Showcase

<details>
  <summary>Click to view showcase</summary>
<img width="960" alt="Screenshot (11)"
src="https://github.com/user-attachments/assets/916e569e-cd49-43fd-b81d-aae600890cd3"
/>
<img width="959" alt="Screenshot (12)"
src="https://github.com/user-attachments/assets/0e16bb3a-c38a-4a8d-8248-edf3b820d238"
/>
</details>
2025-06-15 16:49:48 +00:00
..
3d_scene.rs Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
3d_shapes.rs Add binned 2d/3d Wireframe render phase (#18587) 2025-04-09 21:34:53 +00:00
3d_viewport_to_world.rs Make Query::single (and friends) return a Result (#18082) 2025-03-02 19:51:56 +00:00
animated_material.rs aligning public apis of Time,Timer and Stopwatch (#15962) 2024-10-16 21:09:32 +00:00
anisotropy.rs Add a Sphere to anisotropy example (#17676) 2025-02-05 20:23:43 +00:00
anti_aliasing.rs Make TAA non-experimental, fixes (#18349) 2025-06-02 16:04:08 +00:00
atmosphere.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
atmospheric_fog.rs
auto_exposure.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
blend_modes.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
bloom_3d.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
camera_sub_view.rs
clearcoat.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
clustered_decals.rs Disable clustered decals on Metal. (#17554) 2025-01-27 05:39:07 +00:00
color_grading.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
decal.rs Upgrade to Rust Edition 2024 (#17967) 2025-02-24 03:54:47 +00:00
deferred_rendering.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
depth_of_field.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
edit_material_on_gltf.rs Event Split: Event, EntityEvent, and BufferedEvent (#19647) 2025-06-15 16:46:34 +00:00
fog_volumes.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
fog.rs Fix mismatched FogFalloff (#19174) 2025-05-26 17:52:27 +00:00
generate_custom_mesh.rs Make Query::single (and friends) return a Result (#18082) 2025-03-02 19:51:56 +00:00
irradiance_volumes.rs Make IrradianceVolume require LightProbe (and document this). (#19621) 2025-06-13 17:09:31 +00:00
lighting.rs lighting.rs example: Improved ambient light showcase (#19658) 2025-06-15 16:49:48 +00:00
lightmaps.rs Add GltfMeshName component and Deref implementations (#19331) 2025-05-23 20:56:48 +00:00
lines.rs Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
load_gltf_extras.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
load_gltf.rs
mesh_ray_cast.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
meshlet.rs Add external assets to .gitignore (#17388) 2025-01-17 01:20:14 +00:00
mixed_lighting.rs Event Split: Event, EntityEvent, and BufferedEvent (#19647) 2025-06-15 16:46:34 +00:00
motion_blur.rs Remove WebGL padding from MotionBlur (#18727) 2025-04-06 20:00:59 +00:00
occlusion_culling.rs Adopt consistent FooSystems naming convention for system sets (#18900) 2025-05-06 15:18:03 +00:00
order_independent_transparency.rs Relationships (non-fragmenting, one-to-many) (#17398) 2025-01-18 22:20:30 +00:00
orthographic.rs
parallax_mapping.rs Don't reëxport bevy_image from bevy_render (#16163) 2024-11-10 06:54:38 +00:00
parenting.rs
pbr.rs Fix pbr example text rotation (#19571) 2025-06-10 16:57:57 +00:00
pcss.rs Make TAA non-experimental, fixes (#18349) 2025-06-02 16:04:08 +00:00
post_processing.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
query_gltf_primitives.rs Cosmetic tweaks to query_gltf_primitives (#16102) 2024-10-27 19:06:19 +00:00
reflection_probes.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
render_to_texture.rs
rotate_environment_map.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
scrolling_fog.rs Make TAA non-experimental, fixes (#18349) 2025-06-02 16:04:08 +00:00
shadow_biases.rs Fix shadow_biases example (#18303) 2025-03-14 19:50:49 +00:00
shadow_caster_receiver.rs
skybox.rs Revert "Replace Ambient Lights with Environment Map Lights (#17482)" (#18167) 2025-03-05 23:08:46 +00:00
solari.rs Event Split: Event, EntityEvent, and BufferedEvent (#19647) 2025-06-15 16:46:34 +00:00
specular_tint.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
spherical_area_lights.rs Revert "Replace Ambient Lights with Environment Map Lights (#17482)" (#18167) 2025-03-05 23:08:46 +00:00
split_screen.rs separate border colors (#18682) 2025-05-26 16:57:13 +00:00
spotlight.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
ssao.rs Make TAA non-experimental, fixes (#18349) 2025-06-02 16:04:08 +00:00
ssr.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
texture.rs Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
tonemapping.rs Rename JustifyText to Justify (#19522) 2025-06-09 19:59:48 +00:00
transmission.rs Make TAA non-experimental, fixes (#18349) 2025-06-02 16:04:08 +00:00
transparency_3d.rs Upgrade to Rust Edition 2024 (#17967) 2025-02-24 03:54:47 +00:00
two_passes.rs Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
update_gltf_scene.rs aligning public apis of Time,Timer and Stopwatch (#15962) 2024-10-16 21:09:32 +00:00
vertex_colors.rs
visibility_range.rs Switch ChildOf back to tuple struct (#18672) 2025-04-02 00:10:10 +00:00
volumetric_fog.rs Split Camera.hdr out into a new component (#18873) 2025-05-26 19:24:45 +00:00
wireframe.rs Add binned 2d/3d Wireframe render phase (#18587) 2025-04-09 21:34:53 +00:00