Bevymark 3D

[aevyrie]

Objective

• Add a stress test that exercises the 3d mesh pipeline for dynamic scenes.
• Large static scenes like caldera hotel don't expose performance issues when many meshes are moving.
• Give us a way to benchmark PRs like
  • Parallel Mesh Collection #22297
  • Optimize transform propagation for dynamic scenes #22281
  • Optimize Visibility Systems #22226

Solution

• Make a 3d version of bevymark, sticking to the existing patterns as closely as possible.

Testing

[github-actions]

The generated examples/README.md is out of sync with the example metadata in Cargo.toml or the example readme template. Please run cargo run -p build-templated-pages -- update examples to update it, and commit the file change.

[aevyrie]

Might be able to use some of the options in many_cubes to stress test transform behavior instead?

[IceSentry]

Minor nitpicks but overall the example is good and seems useful