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Runtime/Sources/Renderer/RenderPasses/PostProcessPass.cpp

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+#include <Renderer/RenderPasses/PostProcessPass.h>
+#include <Renderer/Pipelines/Graphics.h>
+#include <Renderer/Renderer.h>
+#include <Graphics/Scene.h>
+#include <Core/EventBus.h>
+#include <Core/Engine.h>
+
+namespace Scop
+{
+	void PostProcessPass::Init()
+	{
+		ShaderLayout vertex_shader_layout(
+			{}, {}
+		);
+		p_vertex_shader = LoadShaderFromFile(ScopEngine::Get().GetAssetsPath() / "Shaders/Build/ScreenVertex.spv", ShaderType::Vertex, std::move(vertex_shader_layout));
+
+		std::function<void(const EventBase&)> functor = [this](const EventBase& event)
+		{
+			if(event.What() == Event::ResizeEventCode)
+			{
+				m_render_texture.Destroy();
+				m_pipeline.Destroy();
+			}
+		};
+		EventBus::RegisterListener({ functor, "__ScopPostProcessPass" });
+	}
+
+	void PostProcessPass::Pass(Scene& scene, Renderer& renderer, Texture& render_target)
+	{
+		Scene::PostProcessData& data = scene.GetPostProcessData();
+
+		if(!m_render_texture.IsInit())
+		{
+			auto extent = kvfGetSwapchainImagesSize(renderer.GetSwapchain().Get());
+			m_render_texture.Init({}, extent.width, extent.height, VK_FORMAT_R8G8B8A8_UNORM, false, "scop_post_process_render_texture", false);
+		}
+
+		if(m_pipeline.GetPipeline() == VK_NULL_HANDLE)
+		{
+			GraphicPipelineDescriptor pipeline_descriptor;
+			pipeline_descriptor.vertex_shader = p_vertex_shader;
+			pipeline_descriptor.fragment_shader = scene.GetDescription().post_process_shader;
+			pipeline_descriptor.color_attachments = { &m_render_texture };
+			pipeline_descriptor.culling = CullMode::None;
+			pipeline_descriptor.clear_color_attachments = false;
+			pipeline_descriptor.no_vertex_inputs = true;
+			pipeline_descriptor.name = "post_process_pass_pipeline";
+			m_pipeline.Init(std::move(pipeline_descriptor));
+		}
+
+		VkCommandBuffer cmd = renderer.GetActiveCommandBuffer();
+
+		data.set->SetImage(renderer.GetCurrentFrameIndex(), 0, render_target);
+		data.set->SetImage(renderer.GetCurrentFrameIndex(), 1, scene.GetDepth());
+		data.set->SetUniformBuffer(renderer.GetCurrentFrameIndex(), 2, data.data_buffer->Get(renderer.GetCurrentFrameIndex()));
+		data.set->Update(renderer.GetCurrentFrameIndex(), cmd);
+
+		m_pipeline.BindPipeline(cmd, 0, {});
+			VkDescriptorSet set = data.set->GetSet(renderer.GetCurrentFrameIndex());
+			RenderCore::Get().vkCmdBindDescriptorSets(cmd, m_pipeline.GetPipelineBindPoint(), m_pipeline.GetPipelineLayout(), 0, 1, &set, 0, nullptr);
+			RenderCore::Get().vkCmdDraw(cmd, 3, 1, 0, 0);
+			renderer.GetDrawCallsCounterRef()++;
+			renderer.GetPolygonDrawnCounterRef()++;
+		m_pipeline.EndPipeline(cmd);
+	}
+
+	void PostProcessPass::Destroy()
+	{
+		RenderCore::Get().WaitDeviceIdle();
+		m_render_texture.Destroy();
+		m_pipeline.Destroy();
+		p_vertex_shader.reset();
+	}
+}