From 1a3cc9a6b7c20589db5c56e20aa2c69ac61763a0 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Thu, 25 Jun 2026 01:05:56 +0200
Subject: refactor(engine): render only to window targeted windows

---
 engine/src/rendering.rs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'engine/src/rendering.rs')

diff --git a/engine/src/rendering.rs b/engine/src/rendering.rs
index 2ec0b38..e9e620e 100644
--- a/engine/src/rendering.rs
+++ b/engine/src/rendering.rs
@@ -121,6 +121,10 @@ impl Default for Extension
     }
 }
 
+/// Marker component for windows that should be renderer to.
+#[derive(Debug, Clone, Copy, Component)]
+pub struct TargetWindow;
+
 builder! {
 #[builder(name=GraphicsPropertiesBuilder, derives=(Debug, Clone))]
 #[derive(Debug, Clone, Sole)]
@@ -400,7 +404,7 @@ impl Default for CommandQueue
 
 #[tracing::instrument(skip_all)]
 fn enqueue_commands_from_render_passes(
-    window_surface_spec_query: Query<(&SurfaceSpec,), (With<Window>,)>,
+    window_surface_spec_query: Query<(&SurfaceSpec,), (With<Window>, With<TargetWindow>)>,
     mut command_queue: Single<CommandQueue>,
     mut render_passes: Single<RenderPasses>,
     mut active_draw_props: Local<ActiveDrawProperties>,
@@ -450,6 +454,10 @@ fn handle_window_changed(
     for evt_match in &observe {
         let window_ent = evt_match.get_entity();
 
+        if window_ent.get::<TargetWindow>().is_none() {
+            continue;
+        }
+
         let Some(window_surface_spec) = window_ent.get::<SurfaceSpec>() else {
             continue;
         };
@@ -485,6 +493,10 @@ fn handle_window_removed(
 
         let window_ent = evt_match.get_entity();
 
+        if window_ent.get::<TargetWindow>().is_none() {
+            continue;
+        }
+
         tracing::debug!(
             entity_id = %window_ent_id,
             title = %evt_match.get_ent_target_comp().title,
-- 
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