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https://github.com/bevyengine/bevy
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# Objective Add a convenient immediate mode drawing API for visual debugging. Fixes #5619 Alternative to #1625 Partial alternative to #5734 Based off https://github.com/Toqozz/bevy_debug_lines with some changes: * Simultaneous support for 2D and 3D. * Methods for basic shapes; circles, spheres, rectangles, boxes, etc. * 2D methods. * Removed durations. Seemed niche, and can be handled by users. <details> <summary>Performance</summary> Stress tested using Bevy's recommended optimization settings for the dev profile with the following command. ```bash cargo run --example many_debug_lines \ --config "profile.dev.package.\"*\".opt-level=3" \ --config "profile.dev.opt-level=1" ``` I dipped to 65-70 FPS at 300,000 lines CPU: 3700x RAM Speed: 3200 Mhz GPU: 2070 super - probably not very relevant, mostly cpu/memory bound </details> <details> <summary>Fancy bloom screenshot</summary>  </details> ## Changelog * Added `GizmoPlugin` * Added `Gizmos` system parameter for drawing lines and wireshapes. ### TODO - [ ] Update changelog - [x] Update performance numbers - [x] Add credit to PR description ### Future work - Cache rendering primitives instead of constructing them out of line segments each frame. - Support for drawing solid meshes - Interactions. (See [bevy_mod_gizmos](https://github.com/LiamGallagher737/bevy_mod_gizmos)) - Fancier line drawing. (See [bevy_polyline](https://github.com/ForesightMiningSoftwareCorporation/bevy_polyline)) - Support for `RenderLayers` - Display gizmos for a certain duration. Currently everything displays for one frame (ie. immediate mode) - Changing settings per drawn item like drawing on top or drawing to different `RenderLayers` Co-Authored By: @lassade <felipe.jorge.pereira@gmail.com> Co-Authored By: @The5-1 <agaku@hotmail.de> Co-Authored By: @Toqozz <toqoz@hotmail.com> Co-Authored By: @nicopap <nico@nicopap.ch> --------- Co-authored-by: Robert Swain <robert.swain@gmail.com> Co-authored-by: IceSentry <c.giguere42@gmail.com> Co-authored-by: Carter Anderson <mcanders1@gmail.com>
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Cargo Features
Bevy exposes many features to customise the engine. Enabling them add functionalities but often come at the cost of longer compilation times and extra dependencies.
Default Features
The default feature set enables most of the expected features of a game engine, like rendering in both 2D and 3D, asset loading, audio and UI. To help reduce compilation time, consider disabling default features and enabling only those you need.
| feature name | description |
|---|---|
| android_shared_stdcxx | Enable using a shared stdlib for cxx on Android |
| animation | Enable animation support, and glTF animation loading |
| bevy_animation | Provides animation functionality |
| bevy_asset | Provides asset functionality |
| bevy_audio | Provides audio functionality |
| bevy_core_pipeline | Provides cameras and other basic render pipeline features |
| bevy_gilrs | Adds gamepad support |
| bevy_gizmos | Adds support for rendering gizmos |
| bevy_gltf | glTF support |
| bevy_pbr | Adds PBR rendering |
| bevy_render | Provides rendering functionality |
| bevy_scene | Provides scene functionality |
| bevy_sprite | Provides sprite functionality |
| bevy_text | Provides text functionality |
| bevy_ui | A custom ECS-driven UI framework |
| bevy_winit | winit window and input backend |
| filesystem_watcher | Enable watching file system for asset hot reload |
| hdr | HDR image format support |
| ktx2 | KTX2 compressed texture support |
| png | PNG image format support |
| tonemapping_luts | Include tonemapping Look Up Tables KTX2 files |
| vorbis | OGG/VORBIS audio format support |
| x11 | X11 display server support |
| zstd | For KTX2 supercompression |
Optional Features
| feature name | description |
|---|---|
| accesskit_unix | Enable AccessKit on Unix backends (currently only works with experimental screen readers and forks.) |
| basis-universal | Basis Universal compressed texture support |
| bevy_ci_testing | Enable systems that allow for automated testing on CI |
| bevy_dynamic_plugin | Plugin for dynamic loading (using libloading) |
| bmp | BMP image format support |
| dds | DDS compressed texture support |
| debug_asset_server | Enable the "debug asset server" for hot reloading internal assets |
| detailed_trace | Enable detailed trace event logging. These trace events are expensive even when off, thus they require compile time opt-in |
| dynamic_linking | Force dynamic linking, which improves iterative compile times |
| exr | EXR image format support |
| flac | FLAC audio format support |
| jpeg | JPEG image format support |
| minimp3 | MP3 audio format support (through minimp3) |
| mp3 | MP3 audio format support |
| serialize | Enable serialization support through serde |
| subpixel_glyph_atlas | Enable rendering of font glyphs using subpixel accuracy |
| symphonia-aac | AAC audio format support (through symphonia) |
| symphonia-all | AAC, FLAC, MP3, MP4, OGG/VORBIS, and WAV audio formats support (through symphonia) |
| symphonia-flac | FLAC audio format support (through symphonia) |
| symphonia-isomp4 | MP4 audio format support (through symphonia) |
| symphonia-vorbis | OGG/VORBIS audio format support (through symphonia) |
| symphonia-wav | WAV audio format support (through symphonia) |
| tga | TGA image format support |
| trace | Tracing support |
| trace_chrome | Tracing support, saving a file in Chrome Tracing format |
| trace_tracy | Tracing support, exposing a port for Tracy |
| wav | WAV audio format support |
| wayland | Wayland display server support |
| wgpu_trace | Save a trace of all wgpu calls |
| zlib | For KTX2 supercompression |