From cae58d8bf592644e8eb3f0bb413b4a790fa014dd Mon Sep 17 00:00:00 2001
From: antopilo <antoinepilote1@hotmail.com>
Date: Thu, 16 Jan 2025 01:02:03 -0500
Subject: [PATCH] Started bloom pass

---
 .../Rendering/Vulkan/SceneRenderPipeline.cpp  | 16 ++++++++++++
 .../Rendering/Vulkan/SceneRenderPipeline.h    | 25 +++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/Nuake/src/Rendering/Vulkan/SceneRenderPipeline.cpp b/Nuake/src/Rendering/Vulkan/SceneRenderPipeline.cpp
index 3641c384..473469cb 100644
--- a/Nuake/src/Rendering/Vulkan/SceneRenderPipeline.cpp
+++ b/Nuake/src/Rendering/Vulkan/SceneRenderPipeline.cpp
@@ -94,6 +94,22 @@ SceneRenderPipeline::SceneRenderPipeline()
 
 	TonemappedOutput = CreateRef<VulkanImage>(ImageFormat::RGBA8, defaultSize);
 
+	// Setup bloom targets
+	BloomOutput = CreateRef<VulkanImage>(ImageFormat::RGBA16F, defaultSize);
+	BloomThreshold = CreateRef<VulkanImage>(ImageFormat::RGBA16F, defaultSize);
+
+	//Vector2 currentSize;
+	//for (int i = 0; i < BloomIteration; i++)
+	//{
+	//	Ref<VulkanImage> downSample = CreateRef<VulkanImage>(ImageFormat::RGBA16F, defaultSize);
+	//	BloomDownSample.push_back(downSample);
+	//
+	//	m_DownSampleFB.push_back(downSample);
+	//	m_UpSampleFB.push_back(upSample);
+	//	m_HBlurFB.push_back(hBlur);
+	//	m_VBlurFB.push_back(vBlur);
+	//}
+
 	// Initialize pipeline
 	VkShaderManager& shaderMgr = VkShaderManager::Get();
 
diff --git a/Nuake/src/Rendering/Vulkan/SceneRenderPipeline.h b/Nuake/src/Rendering/Vulkan/SceneRenderPipeline.h
index be1e7124..a67705dd 100644
--- a/Nuake/src/Rendering/Vulkan/SceneRenderPipeline.h
+++ b/Nuake/src/Rendering/Vulkan/SceneRenderPipeline.h
@@ -48,6 +48,18 @@ namespace Nuake
 		int SourceTextureID;
 	};
 
+	struct BloomConstant
+	{
+		int Stage;
+		int SourceTextureID;
+		int HasLensDirt;
+		int LensDirtTextureID;
+		float LensDirtIntensity;
+		float Threshold;
+		float BlurAmount;
+		int BlurDirection;
+	};
+
 	// This class handles all the rendering of the scene
 	class SceneRenderPipeline
 	{
@@ -65,9 +77,22 @@ namespace Nuake
 
 		Ref<VulkanImage> TonemappedOutput;
 
+		// Bloom
+		const int BloomIteration = 4;
+		const float DownsampleScale = 0.4f;
+		Ref<VulkanImage> BloomThreshold;
+		std::vector<Ref<VulkanImage>> BloomDownSample;
+		std::vector<Ref<VulkanImage>> BloomUpSample;
+		std::vector<Ref<VulkanImage>> BloomHBlur;
+		std::vector<Ref<VulkanImage>> BloomVBlur;
+		Ref<VulkanImage> BloomOutput;
+
+		// Push constant
 		GBufferConstant gbufferConstant;
 		ShadingConstant shadingConstant;
 		TonemapConstant tonemapConstant;
+		BloomConstant bloomConstant;
+
 		static RenderPipeline GBufferPipeline;
 
 	public: