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.
24 lines
642 B
Rust
24 lines
642 B
Rust
//! Shows how to render a polygonal [`Mesh`], generated from a [`Rectangle`] primitive, in a 2D scene.
|
|
|
|
use bevy::{color::palettes::basic::PURPLE, prelude::*};
|
|
|
|
fn main() {
|
|
App::new()
|
|
.add_plugins(DefaultPlugins)
|
|
.add_systems(Startup, setup)
|
|
.run();
|
|
}
|
|
|
|
fn setup(
|
|
mut commands: Commands,
|
|
mut meshes: ResMut<Assets<Mesh>>,
|
|
mut materials: ResMut<Assets<ColorMaterial>>,
|
|
) {
|
|
commands.spawn(Camera2d);
|
|
commands.spawn((
|
|
Mesh2d(meshes.add(Rectangle::default())),
|
|
MeshMaterial2d(materials.add(Color::from(PURPLE))),
|
|
Transform::default().with_scale(Vec3::splat(128.)),
|
|
));
|
|
}
|