2D Rendering / 2D Viewport To World

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Support Warning

WebGPU is currently only supported on Chrome starting with version 113, and only on desktop. If they don't work on your configuration, you can check the WebGL2 examples here.

//! This example demonstrates how to use the `Camera::viewport_to_world_2d` method.

use bevy::{color::palettes::basic::WHITE, prelude::*};

fn main() {
        .add_systems(Startup, setup)
        .add_systems(Update, draw_cursor)

fn draw_cursor(
    camera_query: Query<(&Camera, &GlobalTransform)>,
    windows: Query<&Window>,
    mut gizmos: Gizmos,
) {
    let (camera, camera_transform) = camera_query.single();

    let Some(cursor_position) = windows.single().cursor_position() else {

    // Calculate a world position based on the cursor's position.
    let Some(point) = camera.viewport_to_world_2d(camera_transform, cursor_position) else {

    gizmos.circle_2d(point, 10., WHITE);

fn setup(mut commands: Commands) {