refactor: 解耦重构——还清四处架构债（对齐 UE/Unity 分层）

- SceneRenderer：场景→渲染数据翻译层（UE FSceneRenderer / Unity CullingResults 模式），收口相机/灯光/光空间矩阵/双视图剔除，Renderer 只编排 - pass 对象化（Unity ScriptableRenderPass 模式）：8 个 pass lambda 拆为 Passes::{Shadow,Forward,Bloom,Tonemap,ImGui,Present}，BuildGraph 超级函数消失； SceneGpu/FullscreenGpu 承接共享装配 - 中性 AssetRef（Core 层）：ECS 组件不再依赖 Assets 模块（Unity InstanceID 思路） - IAssetUploader 接口：AssetManager 不感知 Vulkan 具体类，上传服务由渲染层 VulkanAssetUploader 提供 - Renderer 公共 API 不变（App 层零改动），编译零错误 validation 零警告
2026-09-23 12:02:49 +08:00
parent 91880d88fe
commit 718a658f5d
30 changed files with 1777 additions and 1054 deletions
@@ -0,0 +1,75 @@
+//
+// Created by atdunbg on 2026/9/23.
+//
+
+#include <Engine/Renderer/Passes/BloomPass.h>
+#include <Engine/Core/FrameContext.h>
+
+namespace Engine::Passes
+{
+    BloomPass::BloomPass(FullscreenGpu& gpu, PostProcessParams& params,
+                         RG::TextureHandle hdrColor,
+                         RG::TextureHandle bloomA, RG::TextureHandle bloomB)
+        : m_Gpu(gpu), m_Params(params),
+          m_HDR(hdrColor), m_A(bloomA), m_B(bloomB)
+    {
+        m_ExtractSets.resize(kMaxFramesInFlight);
+        m_BlurHSets.resize(kMaxFramesInFlight);
+        m_BlurVSets.resize(kMaxFramesInFlight);
+        for (u32 slot = 0; slot < kMaxFramesInFlight; ++slot) {
+            m_ExtractSets[slot] = m_Gpu.AllocateSet();
+            m_BlurHSets[slot] = m_Gpu.AllocateSet();
+            m_BlurVSets[slot] = m_Gpu.AllocateSet();
+        }
+    }
+
+    void BloomPass::Register(RG::RenderGraph& rg)
+    {
+        // Extract：HDR → 半分辨率 A（软阈值由 frag 的 param0 传入）
+        rg.AddPass("BloomExtract",
+            [this](RG::RenderGraphContext& ctx) {
+                m_Gpu.RecordFullscreen(ctx, ctx.View(m_A), m_Gpu.extractFrag,
+                                       m_ExtractSets[ctx.frame.frameSlot],
+                                       FullscreenPush{0.0f, m_Params.bloomThreshold, 0.0f, 0.0f});
+            })
+            .Read(m_HDR, RG::ResourceUse::ShaderRead,
+                  vk::ShaderStageFlagBits::eFragment)
+            .Write(m_A, RG::ResourceUse::ColorAttachment);
+
+        // BlurH：A → B（水平步长经 push 传入）
+        rg.AddPass("BloomBlurH",
+            [this](RG::RenderGraphContext& ctx) {
+                m_Gpu.RecordFullscreen(ctx, ctx.View(m_B), m_Gpu.blurFrag,
+                                       m_BlurHSets[ctx.frame.frameSlot],
+                                       FullscreenPush{0.0f,
+                                                      1.0f / ctx.extent.width, 0.0f,
+                                                      0.0f});
+            })
+            .Read(m_A, RG::ResourceUse::ShaderRead,
+                  vk::ShaderStageFlagBits::eFragment)
+            .Write(m_B, RG::ResourceUse::ColorAttachment);
+
+        // BlurV：B → A（垂直步长）
+        rg.AddPass("BloomBlurV",
+            [this](RG::RenderGraphContext& ctx) {
+                m_Gpu.RecordFullscreen(ctx, ctx.View(m_A), m_Gpu.blurFrag,
+                                       m_BlurVSets[ctx.frame.frameSlot],
+                                       FullscreenPush{0.0f, 0.0f,
+                                                      1.0f / ctx.extent.height,
+                                                      0.0f});
+            })
+            .Read(m_B, RG::ResourceUse::ShaderRead,
+                  vk::ShaderStageFlagBits::eFragment)
+            .Write(m_A, RG::ResourceUse::ColorAttachment);
+    }
+
+    void BloomPass::OnTargetsRebuilt(RG::RenderGraph& rg)
+    {
+        for (u32 slot = 0; slot < kMaxFramesInFlight; ++slot) {
+            m_Gpu.UpdateSetInput(m_ExtractSets[slot], 0, rg, m_HDR, slot);
+            m_Gpu.UpdateSetInput(m_BlurHSets[slot], 0, rg, m_A, slot);
+            m_Gpu.UpdateSetInput(m_BlurVSets[slot], 0, rg, m_B, slot);
+        }
+    }
+
+} // namespace Engine::Passes