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# Objective `many_buttons` enhancements: * use `argh` to manage the commandline arguments like the other stress tests * add an option to set the number of buttons * add a grid layout option * centre the grid properly * use viewport coords for the layout's style constraints * replace use of absolute positioning includes the changes from #9636 Displaying an image isn't actually about stress testing image rendering. Without a second texture (the first is used by the text) the entire grid will be drawn in a single batch. The extra texture used by the image forces the renderer to break up the batches at every button displaying an image, where it has to switch between the font atlas texture and the image texture. ## Solution <img width="401" alt="many_buttons_new" src="https://github.com/bevyengine/bevy/assets/27962798/82140c6d-d72c-4e4f-b9b6-dd204176e51d"> --- ## Changelog `many_buttons` stress test example enhancements: * uses `argh` to the manage the commandline arguments. * New commandline args: - `--help` display info & list all commandline options - `--buttons` set the number of buttons. - `--image-freq` set the frequency of buttons displaying images - `--grid` use a grid layout * style constraints are specified in viewport coords insead of percentage values * margins and nested bundles are used to construct the layout, instead of absolute positioning * the button grid centered in the window, the empty gap along the bottom and right is removed * an image is drawn as the background to every Nth button where N is set using the `--image-freq` commandline option. --------- Co-authored-by: Rob Parrett <robparrett@gmail.com> |
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| .. | ||
| bevymark.rs | ||
| many_animated_sprites.rs | ||
| many_buttons.rs | ||
| many_cubes.rs | ||
| many_foxes.rs | ||
| many_gizmos.rs | ||
| many_glyphs.rs | ||
| many_lights.rs | ||
| many_sprites.rs | ||
| README.md | ||
| text_pipeline.rs | ||
| transform_hierarchy.rs | ||
| warning_string.txt | ||
Stress tests
These examples are used to stress test Bevy's performance in various ways. These should be run with the "stress-test" profile to accurately represent performance in production, otherwise they will run in cargo's default "dev" profile which is very slow.
Example Command
cargo run --profile stress-test --example <EXAMPLE>