From 685b6e59be0e4d27543f167929897f73fff24b5e Mon Sep 17 00:00:00 2001
From: Jakob Hellermann <jakob.hellermann@protonmail.com>
Date: Sun, 20 Mar 2022 21:54:11 +0000
Subject: [PATCH] register `Camera{2,3}d` components for reflection (#4269)

# Objective

When loading a gltf scene with a camera, bevy will panic at ``thread 'main' panicked at 'scene contains the unregistered type `bevy_render::camera::bundle::Camera3d`. consider registering the type using `app.register_type::<T>()`', /home/jakob/dev/rust/contrib/bevy/bevy/crates/bevy_scene/src/scene_spawner.rs:332:35``.

## Solution

Register the camera types to fix the panic.
---
 crates/bevy_render/src/camera/bundle.rs | 11 +++++++----
 crates/bevy_render/src/camera/mod.rs    |  2 ++
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/crates/bevy_render/src/camera/bundle.rs b/crates/bevy_render/src/camera/bundle.rs
index f32aad826c..cc185d788c 100644
--- a/crates/bevy_render/src/camera/bundle.rs
+++ b/crates/bevy_render/src/camera/bundle.rs
@@ -1,18 +1,21 @@
+use super::{CameraProjection, ScalingMode};
 use crate::{
     camera::{Camera, DepthCalculation, OrthographicProjection, PerspectiveProjection},
     primitives::Frustum,
     view::VisibleEntities,
 };
+use bevy_ecs::reflect::ReflectComponent;
 use bevy_ecs::{bundle::Bundle, prelude::Component};
 use bevy_math::Vec3;
+use bevy_reflect::Reflect;
 use bevy_transform::components::{GlobalTransform, Transform};
 
-use super::{CameraProjection, ScalingMode};
-
-#[derive(Component, Default)]
+#[derive(Component, Default, Reflect)]
+#[reflect(Component)]
 pub struct Camera3d;
 
-#[derive(Component, Default)]
+#[derive(Component, Default, Reflect)]
+#[reflect(Component)]
 pub struct Camera2d;
 
 /// Component bundle for camera entities with perspective projection
diff --git a/crates/bevy_render/src/camera/mod.rs b/crates/bevy_render/src/camera/mod.rs
index 7ebdf2c20c..c58835929a 100644
--- a/crates/bevy_render/src/camera/mod.rs
+++ b/crates/bevy_render/src/camera/mod.rs
@@ -28,6 +28,8 @@ impl Plugin for CameraPlugin {
             .register_type::<ScalingMode>()
             .register_type::<DepthCalculation>()
             .register_type::<Aabb>()
+            .register_type::<Camera3d>()
+            .register_type::<Camera2d>()
             .add_system_to_stage(
                 CoreStage::PostUpdate,
                 crate::camera::camera_system::<OrthographicProjection>,