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[Merged by Bors] - many_cubes: Add a cube pattern suitable for benchmarking culling changes#4126

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[Merged by Bors] - many_cubes: Add a cube pattern suitable for benchmarking culling changes#4126
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@superdump superdump commented Mar 6, 2022

Objective

  • Add a cube pattern to many_cubes suitable for benchmarking culling changes

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@github-actions github-actions bot added the S-Needs-Triage This issue needs to be labelled label Mar 6, 2022
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superdump commented Mar 7, 2022

While investigating:

  • Visibility as a marker component #3796
    I wanted a 3D benchmark to test with. The recent changes to many_cubes seemed promising. However, the pattern of placing cubes on the surface of a large cube produce view-dependent number of visible meshes. This was intended to demonstrate frustum culling is working properly. I needed something more consistent so I found an algorithm for reasonably evenly distributing the cubes on the surface of a sphere. This does indeed maintain the number of visible meshes at fairly consistent numbers, making it more suitable for benchmarking changes to the culling and visibility systems.

@superdump superdump requested a review from mockersf March 7, 2022 00:02
@superdump superdump added A-Rendering Drawing game state to the screen C-Examples An addition or correction to our examples and removed S-Needs-Triage This issue needs to be labelled labels Mar 7, 2022
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superdump commented Mar 7, 2022

Screenshot 2022-03-07 at 01 05 34

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Well-motivated, code quality is solid. This is also very pretty!

Should we consider moving this and bevymark to their own folder? They're not exactly useful as learning material IMO.

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superdump commented Mar 7, 2022

Should we consider moving this and bevymark to their own folder? They're not exactly useful as learning material IMO.

I think it could be useful to have a place for tests/benchmarks that exercise various aspects of the engine and enable developers to test/check things without having to (re)write the same things over and over. At least I find I’m very commonly using examples, possibly slightly modified, for testing various things during development. I also think we should make a gltf viewer out of load_gltf and a flying camera implementation like that in the shadow biases example. But that’s all off topic for the PR. :)

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alice-i-cecile commented Mar 7, 2022

Agreed; we should consider that in a separate PR I think.

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mockersf commented Mar 7, 2022

Could more people test this example to ensure it doesn't cause dizziness or discomfort?

Should we consider moving this and bevymark to their own folder? They're not exactly useful as learning material IMO.

bevy_mark, many_sprites, many_cubes, text_debug and font_atlas_debug come to mind. But yes, another PR 🙂

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mockersf commented Mar 8, 2022

@superdump could you also update the few ..Default::default() that slipped through in the last PR on that example to the new ..default()?

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superdump commented Mar 8, 2022

@superdump could you also update the few ..Default::default() that slipped through in the last PR on that example to the new ..default()?

Done.

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alice-i-cecile commented Mar 8, 2022

bors try

bors bot added a commit that referenced this pull request Mar 8, 2022
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Try #4126:
ffd9fe4
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superdump commented Mar 8, 2022

bors try

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bors bot commented Mar 8, 2022

try

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superdump commented Mar 8, 2022

Oh, I thought the test progress would be shown at the bottom and it had failed again. I see the status is elsewhere.

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bors bot commented Mar 8, 2022

try

Build succeeded:

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alice-i-cecile commented Mar 8, 2022

bors r+

bors bot pushed a commit that referenced this pull request Mar 8, 2022
@superdump
many_cubes: Add a cube pattern suitable for benchmarking culling chan…
a188bab 
…ges (#4126)

# Objective

- Add a cube pattern to `many_cubes` suitable for benchmarking culling changes

## Solution

- Use a 'golden spiral' mapped to a sphere with the strategy of optimising for average nearest neighbour distance, as per: http://extremelearning.com.au/how-to-evenly-distribute-points-on-a-sphere-more-effectively-than-the-canonical-fibonacci-lattice/
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alice-i-cecile commented Mar 8, 2022

We had a couple sets of eyes on this for nausea, and this is a very niche example. We can tweak it later if we get complaints.

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bors bot commented Mar 8, 2022

Pull request successfully merged into main.

Build succeeded:

@bors bors bot changed the title many_cubes: Add a cube pattern suitable for benchmarking culling changes [Merged by Bors] - many_cubes: Add a cube pattern suitable for benchmarking culling changes Mar 8, 2022
@bors bors bot closed this Mar 8, 2022
aevyrie pushed a commit to aevyrie/bevy that referenced this pull request Jun 7, 2022
@superdump @aevyrie
many_cubes: Add a cube pattern suitable for benchmarking culling chan…
843e811 
…ges (bevyengine#4126)

# Objective

- Add a cube pattern to `many_cubes` suitable for benchmarking culling changes

## Solution

- Use a 'golden spiral' mapped to a sphere with the strategy of optimising for average nearest neighbour distance, as per: http://extremelearning.com.au/how-to-evenly-distribute-points-on-a-sphere-more-effectively-than-the-canonical-fibonacci-lattice/
ItsDoot pushed a commit to ItsDoot/bevy that referenced this pull request Feb 1, 2023
@superdump @ItsDoot
many_cubes: Add a cube pattern suitable for benchmarking culling chan…
5173e0b 
…ges (bevyengine#4126)

# Objective

- Add a cube pattern to `many_cubes` suitable for benchmarking culling changes

## Solution

- Use a 'golden spiral' mapped to a sphere with the strategy of optimising for average nearest neighbour distance, as per: http://extremelearning.com.au/how-to-evenly-distribute-points-on-a-sphere-more-effectively-than-the-canonical-fibonacci-lattice/
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A-Rendering Drawing game state to the screen C-Examples An addition or correction to our examples

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