25bfa80e60
# Objective Yet another PR for migrating stuff to required components. This time, cameras! ## Solution As per the [selected proposal](https://hackmd.io/tsYID4CGRiWxzsgawzxG_g#Combined-Proposal-1-Selected), deprecate `Camera2dBundle` and `Camera3dBundle` in favor of `Camera2d` and `Camera3d`. Adding a `Camera` without `Camera2d` or `Camera3d` now logs a warning, as suggested by Cart [on Discord](https://discord.com/channels/691052431525675048/1264881140007702558/1291506402832945273). I would personally like cameras to work a bit differently and be split into a few more components, to avoid some footguns and confusing semantics, but that is more controversial, and shouldn't block this core migration. ## Testing I ran a few 2D and 3D examples, and tried cameras with and without render graphs. --- ## Migration Guide `Camera2dBundle` and `Camera3dBundle` have been deprecated in favor of `Camera2d` and `Camera3d`. Inserting them will now also insert the other components required by them automatically.
97 lines
2.7 KiB
Rust
97 lines
2.7 KiB
Rust
//! Simple text rendering benchmark.
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//!
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//! Creates a `Text` with a single `TextSection` containing `100_000` glyphs,
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//! and renders it with the UI in a white color and with Text2d in a red color.
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//!
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//! To recompute all text each frame run
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//! `cargo run --example many_glyphs --release recompute-text`
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use bevy::{
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color::palettes::basic::RED,
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diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
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prelude::*,
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text::{LineBreak, TextBounds},
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window::{PresentMode, WindowResolution},
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winit::{UpdateMode, WinitSettings},
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};
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fn main() {
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let mut app = App::new();
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app.add_plugins((
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DefaultPlugins.set(WindowPlugin {
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primary_window: Some(Window {
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present_mode: PresentMode::AutoNoVsync,
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resolution: WindowResolution::new(1920.0, 1080.0).with_scale_factor_override(1.0),
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..default()
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}),
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..default()
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}),
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FrameTimeDiagnosticsPlugin,
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LogDiagnosticsPlugin::default(),
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))
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.insert_resource(WinitSettings {
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focused_mode: UpdateMode::Continuous,
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unfocused_mode: UpdateMode::Continuous,
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})
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.add_systems(Startup, setup);
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if std::env::args().any(|arg| arg == "recompute-text") {
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app.add_systems(Update, force_text_recomputation);
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}
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app.run();
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}
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fn setup(mut commands: Commands) {
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warn!(include_str!("warning_string.txt"));
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commands.spawn(Camera2d);
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let mut text = Text {
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sections: vec![TextSection {
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value: "0123456789".repeat(10_000),
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style: TextStyle {
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font_size: 4.,
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..default()
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},
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}],
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justify: JustifyText::Left,
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linebreak: LineBreak::AnyCharacter,
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..default()
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};
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commands
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.spawn(NodeBundle {
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style: Style {
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width: Val::Percent(100.),
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align_items: AlignItems::Center,
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justify_content: JustifyContent::Center,
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..default()
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},
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..default()
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})
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.with_children(|commands| {
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commands.spawn(TextBundle {
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text: text.clone(),
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style: Style {
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width: Val::Px(1000.),
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..Default::default()
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},
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..Default::default()
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});
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});
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text.sections[0].style.color = RED.into();
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commands.spawn(Text2dBundle {
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text,
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text_anchor: bevy::sprite::Anchor::Center,
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text_2d_bounds: TextBounds::new_horizontal(1000.),
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..Default::default()
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});
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}
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fn force_text_recomputation(mut text_query: Query<&mut Text>) {
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for mut text in &mut text_query {
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text.set_changed();
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}
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}
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