feat: TAA 时域抗锯齿（velocity + 邻域 clamp + 子像素抖动）

- Velocity buffer：Forward 第二颜色附件，vertex 计算 clip 空间运动向量
  （UBO 尾部追加 projNoJitter/prevView/prevProj；上一帧实例矩阵 SSBO
  Set0 binding2，与当前实例数组平行对齐——转动的物体速度正确不鬼影）
- 子像素抖动：SceneRenderer Halton(2,3)×8 序列，抖动只进光栅化投影
- TAA resolve pass：velocity 反推历史位置 + 3×3 邻域 clamp 去鬼影 +
  mix(cur,hist,0.9) 时域累积；TAAColor 自引用历史
- RG 历史读补 post-barrier：采样后恢复镜像 resting layout（TAA 的历史
  是 ColorAttachment layout，不恢复则下帧 entry oldLayout 脱节）
- 管线：Forward(HDR+Velocity) → TAA(TAAColor) → Bloom/Tonemap 改源 TAAColor
- 编译零错误、validation 零警告、8 秒冒烟通过（10 pass 全活跃）

Engine/include/Engine/Renderer/Passes/ForwardPass.h

@@ -18,10 +18,11 @@ namespace Engine::Passes {
     class ForwardPass final : public RenderPass {
     public:
         ForwardPass(SceneGpu& gpu, FrameSceneData& frame,
-                    RG::TextureHandle hdrColor, RG::TextureHandle depth,
-                    RG::TextureHandle shadowMap)
+                    RG::TextureHandle hdrColor, RG::TextureHandle velocity,
+                    RG::TextureHandle depth, RG::TextureHandle shadowMap)
             : m_Gpu(gpu), m_Frame(frame),
-              m_HDRColor(hdrColor), m_Depth(depth), m_ShadowMap(shadowMap) {}
+              m_HDRColor(hdrColor), m_Velocity(velocity),
+              m_Depth(depth), m_ShadowMap(shadowMap) {}
 
         void Register(RG::RenderGraph& rg) override;
 
@@ -29,6 +30,7 @@ namespace Engine::Passes {
         SceneGpu& m_Gpu;
         FrameSceneData& m_Frame;
         RG::TextureHandle m_HDRColor;
+        RG::TextureHandle m_Velocity;   // TAA 运动向量（第二颜色附件）
         RG::TextureHandle m_Depth;
         RG::TextureHandle m_ShadowMap;
     };

Engine/include/Engine/Renderer/Passes/FullscreenGpu.h

@@ -54,6 +54,7 @@ namespace Engine {
             vk::Sampler sampler;
             vk::ShaderEXT vert{}, extractFrag{}, blurFrag{}, tonemapFrag{};
             vk::ShaderEXT diffFrag{};            // temporal_diff（帧历史调试）
+            vk::ShaderEXT taaFrag{};             // taa（时域抗锯齿 resolve）
 
             // 各 pass 自己持有 per-slot set；分配统一走这里
             vk::DescriptorSet AllocateSet();

Engine/include/Engine/Renderer/Passes/SceneGpu.h

@@ -29,14 +29,15 @@ namespace Engine {
         public:
             SceneGpu(Device& device, DescriptorManager& descriptors,
                      ShaderManager& shaders,
-                     UniformBuffer& ubo, UniformBuffer& objectBuffer);
+                     UniformBuffer& ubo, UniformBuffer& objectBuffer,
+                     UniformBuffer& prevObjectBuffer);
             ~SceneGpu();
 
             SceneGpu(const SceneGpu&) = delete;
             SceneGpu& operator=(const SceneGpu&) = delete;
 
             // ---- set 布局（shader 契约，改绑定必须同步 shaders/）----
-            vk::DescriptorSetLayout uboSetLayout;      // Set0 = {UBO, ObjectBuffer}
+            vk::DescriptorSetLayout uboSetLayout;      // Set0 = {UBO, ObjectBuffer, PrevObjectBuffer}
             vk::DescriptorSetLayout textureSetLayout;  // Set1 = {albedo}
             vk::DescriptorSetLayout shadowSetLayout;   // Set2 = {shadow map}
             vk::PipelineLayout forwardLayout;          // 3 sets，无 push（GPUDriven 经 SSBO）

Engine/include/Engine/Renderer/Passes/TAAPass.h

@@ -0,0 +1,42 @@
+//
+// Created by atdunbg on 2026/9/23.
+//
+// TAAPass：时域抗锯齿 resolve。
+// 读当前帧 HDR + velocity + 历史累积（ReadHistory 自引用 TAAColor），
+// 邻域 clamp 去鬼影后时域混合。TAAColor 既是输出也是下一帧的历史——
+// 这是帧历史资源最典型的"自引用"形态（UE 的 history pool 同构）。
+//
+
+#ifndef HELLOVULKAN_TAAPASS_H
+#define HELLOVULKAN_TAAPASS_H
+
+#include <Engine/Renderer/Passes/RenderPass.h>
+#include <Engine/Renderer/Passes/FullscreenGpu.h>
+#include <vulkan/vulkan.hpp>
+#include <vector>
+
+namespace Engine::Passes {
+
+    class TAAPass final : public RenderPass {
+    public:
+        TAAPass(FullscreenGpu& gpu, f32 historyAlpha,
+                RG::TextureHandle hdrColor, RG::TextureHandle velocity,
+                RG::TextureHandle taaColor);
+        ~TAAPass() override = default;
+
+        void Register(RG::RenderGraph& rg) override;
+        void OnTargetsRebuilt(RG::RenderGraph& rg) override;
+
+    private:
+        FullscreenGpu& m_Gpu;
+        f32 m_HistoryAlpha;
+        RG::TextureHandle m_HDR;
+        RG::TextureHandle m_Velocity;
+        RG::TextureHandle m_TAAColor;   // 输出 = 下一帧的历史
+
+        std::vector<vk::DescriptorSet> m_Sets;   // per-slot
+    };
+
+} // namespace Engine::Passes
+
+#endif //HELLOVULKAN_TAAPASS_H