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JMS55 fe58993577
METIS-based meshlet generation (#16947) 
# Objective
Improve DAG building for virtual geometry

## Solution

- Use METIS to group triangles into meshlets which lets us minimize
locked vertices which improves simplification, instead of using meshopt
which prioritizes culling efficiency. Also some other minor tweaks.
- Currently most meshlets have 126 triangles, and not 128. Fixing this
might involve calling METIS recursively ourselves to manually bisect the
graph, not sure. Not going to attempt to fix this in this PR.

## Testing

- Did you test these changes? If so, how?
  - Tested on bunny.glb and cliff.glb
- Are there any parts that need more testing?
  - No
- How can other people (reviewers) test your changes? Is there anything
specific they need to know?
  - Download the new bunny asset, run the meshlet example.

---

## Showcase

New 

![image](https://github.com/user-attachments/assets/68f5d2f0-a4ca-41e1-90d5-35a2c6969c21)

Old

![image](https://github.com/user-attachments/assets/a3d97a09-773d-44b2-9990-25e1f6b51ec9)

---------

Co-authored-by: IceSentry <IceSentry@users.noreply.github.com>
2025-01-05 02:03:26 +00:00
..
3d_scene.rs Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
3d_shapes.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
3d_viewport_to_world.rs Migrate from Query::single and friends to Single (#15872) 2024-10-13 20:32:06 +00:00
animated_material.rs aligning public apis of Time,Timer and Stopwatch (#15962) 2024-10-16 21:09:32 +00:00
anisotropy.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
anti_aliasing.rs Don't reëxport bevy_image from bevy_render (#16163) 2024-11-10 06:54:38 +00:00
atmospheric_fog.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
auto_exposure.rs Introduce support for mixed lighting by allowing lights to opt out of contributing diffuse light to lightmapped objects. (#16761) 2024-12-16 23:48:33 +00:00
blend_modes.rs Fix example build for wasm (#16557) 2024-11-30 00:02:04 +00:00
bloom_3d.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
camera_sub_view.rs simplify example, replace get_single to Single Query (#16187) 2024-11-01 18:25:42 +00:00
clearcoat.rs Don't reëxport bevy_image from bevy_render (#16163) 2024-11-10 06:54:38 +00:00
color_grading.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
deferred_rendering.rs Don't reëxport bevy_image from bevy_render (#16163) 2024-11-10 06:54:38 +00:00
depth_of_field.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
fog_volumes.rs Deprecate SpatialBundle (#15830) 2024-10-13 17:28:22 +00:00
fog.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
generate_custom_mesh.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
irradiance_volumes.rs Introduce support for mixed lighting by allowing lights to opt out of contributing diffuse light to lightmapped objects. (#16761) 2024-12-16 23:48:33 +00:00
lighting.rs Introduce support for mixed lighting by allowing lights to opt out of contributing diffuse light to lightmapped objects. (#16761) 2024-12-16 23:48:33 +00:00
lightmaps.rs Get lightmaps working in deferred rendering. (#16836) 2024-12-26 22:13:05 +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 aligning public apis of Time,Timer and Stopwatch (#15962) 2024-10-16 21:09:32 +00:00
mesh_ray_cast.rs Rename RayCastSettings to MeshRayCastSettings (#16703) 2024-12-10 03:27:42 +00:00
meshlet.rs METIS-based meshlet generation (#16947) 2025-01-05 02:03:26 +00:00
mixed_lighting.rs Introduce support for mixed lighting by allowing lights to opt out of contributing diffuse light to lightmapped objects. (#16761) 2024-12-16 23:48:33 +00:00
motion_blur.rs Introduce support for mixed lighting by allowing lights to opt out of contributing diffuse light to lightmapped objects. (#16761) 2024-12-16 23:48:33 +00:00
order_independent_transparency.rs ✏️ Fix typos across bevy (#16702) 2024-12-08 01:18:39 +00:00
orthographic.rs Improve API for scaling orthographic cameras (#15969) 2024-10-17 17:50:06 +00:00
parallax_mapping.rs Don't reëxport bevy_image from bevy_render (#16163) 2024-11-10 06:54:38 +00:00
parenting.rs aligning public apis of Time,Timer and Stopwatch (#15962) 2024-10-16 21:09:32 +00:00
pbr.rs Fix confusing comment in pbr example (#16996) 2024-12-29 22:45:17 +00:00
pcss.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
post_processing.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
query_gltf_primitives.rs Cosmetic tweaks to query_gltf_primitives (#16102) 2024-10-27 19:06:19 +00:00
reflection_probes.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
render_to_texture.rs aligning public apis of Time,Timer and Stopwatch (#15962) 2024-10-16 21:09:32 +00:00
rotate_environment_map.rs Don't reëxport bevy_image from bevy_render (#16163) 2024-11-10 06:54:38 +00:00
scrolling_fog.rs Don't reëxport bevy_image from bevy_render (#16163) 2024-11-10 06:54:38 +00:00
shadow_biases.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
shadow_caster_receiver.rs Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
skybox.rs Introduce support for mixed lighting by allowing lights to opt out of contributing diffuse light to lightmapped objects. (#16761) 2024-12-16 23:48:33 +00:00
spherical_area_lights.rs Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
split_screen.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
spotlight.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
ssao.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
ssr.rs Don't reëxport bevy_image from bevy_render (#16163) 2024-11-10 06:54:38 +00:00
texture.rs Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
tonemapping.rs Update hashbrown to 0.15 (#15801) 2024-12-10 19:45:50 +00:00
transmission.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
transparency_3d.rs aligning public apis of Time,Timer and Stopwatch (#15962) 2024-10-16 21:09:32 +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 Migrate cameras to required components (#15641) 2024-10-05 01:59:52 +00:00
visibility_range.rs Make visibility range (HLOD) dithering work when prepasses are enabled. (#16286) 2024-12-04 17:34:36 +00:00
volumetric_fog.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00
wireframe.rs Merge Style properties into Node. Use ComputedNode for computed properties. (#15975) 2024-10-18 22:25:33 +00:00