add missing image switch

src/app.rs

@@ -4,6 +4,7 @@ use bevy::{
 	render::render_resource::{Extent3d, TextureDimension, TextureFormat, TextureUsages},
 	window::PrimaryWindow,
 };
+use iyes_perf_ui::prelude::*;
 
 use crate::render::pipeline::{TracerPipelinePlugin, TracerRenderTextures, TracerUniforms};
 
@@ -14,15 +15,28 @@ impl Plugin for Blackhole {
 		app.register_type::<TracerRenderTextures>();
 
 		app.add_systems(Startup, setup);
-
 		app.add_plugins(TracerPipelinePlugin);
 		app.insert_resource(TracerUniforms {
 			sky_color: LinearRgba::BLUE,
 		});
+
+		//Perf UI
+		app.add_plugins(bevy::diagnostic::FrameTimeDiagnosticsPlugin::default())
+			.add_plugins(bevy::diagnostic::EntityCountDiagnosticsPlugin)
+			.add_plugins(bevy::diagnostic::SystemInformationDiagnosticsPlugin)
+			.add_plugins(PerfUiPlugin);
 	}
 }
 
 fn setup(mut commands: Commands, mut images: ResMut<Assets<Image>>, window: Single<&Window, With<PrimaryWindow>>) {
+	commands.spawn((
+		PerfUiRoot::default(),
+		PerfUiEntryFPS::default(),
+		PerfUiEntryFPSWorst::default(),
+		PerfUiEntryFrameTime::default(),
+		PerfUiEntryFrameTimeWorst::default(),
+	));
+
 	let size = window.physical_size();
 
 	let extent = Extent3d {

src/render/pipeline.rs

@@ -27,13 +27,6 @@ pub struct TracerLabel;
 #[reflect(Resource)]
 pub struct TracerRenderTextures(pub Handle<Image>, pub Handle<Image>);
 
-#[derive(Resource)]
-pub struct TracerPipeline {
-	pub texture_bind_group_layout: BindGroupLayout,
-	pub init_pipeline: CachedComputePipelineId,
-	pub update_pipeline: CachedComputePipelineId,
-}
-
 #[derive(Resource, Clone, ExtractResource, ShaderType, Default)]
 pub struct TracerUniforms {
 	pub sky_color: LinearRgba,
@@ -47,7 +40,8 @@ impl Plugin for TracerPipelinePlugin {
 			ExtractResourcePlugin::<TracerRenderTextures>::default(),
 			ExtractResourcePlugin::<TracerUniforms>::default(),
 		));
-		app.init_resource::<TracerUniforms>();
+		app.init_resource::<TracerUniforms>()
+			.add_systems(Update, switch_textures);
 		let render_app = app.sub_app_mut(RenderApp);
 
 		// render_app.add_systems(Startup, init_pipeline);
@@ -64,6 +58,21 @@ impl Plugin for TracerPipelinePlugin {
 	}
 }
 
+fn switch_textures(images: Res<TracerRenderTextures>, mut sprite: Single<&mut Sprite>) {
+	if sprite.image == images.0 {
+		sprite.image = images.1.clone();
+	} else {
+		sprite.image = images.0.clone();
+	}
+}
+
+#[derive(Resource)]
+pub struct TracerPipeline {
+	pub texture_bind_group_layout: BindGroupLayout,
+	pub init_pipeline: CachedComputePipelineId,
+	pub update_pipeline: CachedComputePipelineId,
+}
+
 impl FromWorld for TracerPipeline {
 	fn from_world(world: &mut World) -> Self {
 		let render_device = world.resource::<RenderDevice>();
@@ -109,6 +118,7 @@ impl FromWorld for TracerPipeline {
 	}
 }
 
+#[allow(dead_code)] //Pending bevy update for RenderStartup schedule
 fn init_pipeline(
 	mut commands: Commands,
 	render_device: Res<RenderDevice>,