From e632c4b8d3aa022ef25f90edf34253693db0bf51 Mon Sep 17 00:00:00 2001
From: Antoine Pilote <antoinepilote1@hotmail.com>
Date: Thu, 6 Jul 2023 18:10:01 -0400
Subject: [PATCH] Added render target to gbuffer

---
 Editor/resources/Shaders/gbuffer.shader | 3 +++
 Nuake/src/Rendering/SceneRenderer.cpp   | 2 +-
 Nuake/src/Rendering/SceneRenderer.h     | 6 ++++++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/Editor/resources/Shaders/gbuffer.shader b/Editor/resources/Shaders/gbuffer.shader
index c08d14cf..1708ab4a 100644
--- a/Editor/resources/Shaders/gbuffer.shader
+++ b/Editor/resources/Shaders/gbuffer.shader
@@ -40,6 +40,7 @@ void main()
 layout(location = 0) out vec4 gAlbedo;
 layout(location = 1) out vec4 gNormal;
 layout(location = 2) out vec4 gMaterial;
+layout(location = 3) out int gEntityID;
 
 in vec3 FragPos;
 in vec2 UV;
@@ -102,4 +103,6 @@ void main()
     gMaterial.r = finalMetalness;
     gMaterial.g = finalAO;
     gMaterial.b = finalRoughness;
+
+    gEntityID = int(gAlbedo.r * 255.0);
 }
\ No newline at end of file
diff --git a/Nuake/src/Rendering/SceneRenderer.cpp b/Nuake/src/Rendering/SceneRenderer.cpp
index 14f4ad78..fe11ddad 100644
--- a/Nuake/src/Rendering/SceneRenderer.cpp
+++ b/Nuake/src/Rendering/SceneRenderer.cpp
@@ -13,7 +13,7 @@ namespace Nuake {
 		mGBuffer->SetTexture(CreateRef<Texture>(defaultResolution, GL_RGB), GL_COLOR_ATTACHMENT0);
 		mGBuffer->SetTexture(CreateRef<Texture>(defaultResolution, GL_RGB), GL_COLOR_ATTACHMENT1);
 		mGBuffer->SetTexture(CreateRef<Texture>(defaultResolution, GL_RGB), GL_COLOR_ATTACHMENT2);
-		mGBuffer->SetTexture(CreateRef<Texture>(defaultResolution, GL_RGB), GL_COLOR_ATTACHMENT3);
+		mGBuffer->SetTexture(CreateRef<Texture>(defaultResolution, GL_RED_INTEGER, GL_R32I, GL_INT), GL_COLOR_ATTACHMENT3);
 
 		mShadingBuffer = CreateScope<FrameBuffer>(true, defaultResolution);
 		mShadingBuffer->SetTexture(CreateRef<Texture>(defaultResolution, GL_RGB, GL_RGB16F, GL_FLOAT));
diff --git a/Nuake/src/Rendering/SceneRenderer.h b/Nuake/src/Rendering/SceneRenderer.h
index 36bf4216..fa8adf1a 100644
--- a/Nuake/src/Rendering/SceneRenderer.h
+++ b/Nuake/src/Rendering/SceneRenderer.h
@@ -18,6 +18,12 @@ namespace Nuake {
 		void RenderScene(Scene& scene, FrameBuffer& framebuffer);
 
 		Scope<SSR> mSSR;
+
+		FrameBuffer& GetGBuffer() const
+		{
+			return *mGBuffer;
+		}
+
 	private:
 		Matrix4 mProjection, mView;
 		Vector3 mCamPos;