From 111c42a7464eab18b990ca351ec7978afb890424 Mon Sep 17 00:00:00 2001
From: reo <emre@reoco.de>
Date: Sat, 5 Jul 2025 20:43:18 +0300
Subject: [PATCH] Add function "render_into" to the ECS system

This is needed for the imgui integration
---
 src/ecs.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/ecs.rs b/src/ecs.rs
index a67aa32..8fc4ab8 100644
--- a/src/ecs.rs
+++ b/src/ecs.rs
@@ -1,6 +1,6 @@
 use glam::{Mat4, Quat, Vec3};
 use hecs::{Entity, World};
-use crate::{render::{GliumRenderer, Renderer}, model};
+use crate::{render::GliumRenderer, model};
 
 /// This system joins the renderer and ECS,
 /// and provides tools to use them together
@@ -34,6 +34,12 @@ impl ECSRenderer {
     pub fn render(&mut self) {
         self.renderer.render(&self.world);
     }
+
+    /// Render into an existing glium target surface. Useful for composing with
+    /// other render passes (e.g. Dear ImGui).
+    pub fn render_into<S: glium::Surface>(&mut self, target: &mut S) {
+        self.renderer.render_into(&self.world, target);
+    }
 }
 
 #[derive(Copy, Clone)]