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Assets/Shaders/ScriptablePostProcessor/Base/ScriptablePostProcessorPass.cs

@@ -15,6 +15,8 @@ namespace SLSFramework.Rendering.PostProcessing
         private string profilerTag;
         private List<ProfilingSampler> profilingSamplers;
         
+        // 核心：材质缓存池，确保每个 Shader 只对应一个材质实例
+        private Dictionary<string, Material> m_MaterialCache = new Dictionary<string, Material>();
 
         public ScriptablePostProcessorPass(string profilerTag, List<ScriptablePostProcessorVolume> postProcessors)
         {
@@ -26,6 +28,30 @@ namespace SLSFramework.Rendering.PostProcessing
         
         private RenderingData m_RenderingData;
 
+        // 清理函数，由 Feature.Dispose 调用
+        public void Cleanup()
+        {
+            foreach (var mat in m_MaterialCache.Values)
+            {
+                if (mat != null) CoreUtils.Destroy(mat);
+            }
+            m_MaterialCache.Clear();
+        }
+
+        private Material GetOrCreateMaterial(string shaderName)
+        {
+            if (string.IsNullOrEmpty(shaderName)) return null;
+            if (m_MaterialCache.TryGetValue(shaderName, out var mat) && mat != null) return mat;
+
+            // 调用你的静态工具类创建材质
+            var shader = Shader.Find(shaderName);
+            if (shader == null) return null;
+            
+            mat = CoreUtils.CreateEngineMaterial(shader);
+            m_MaterialCache[shaderName] = mat;
+            return mat;
+        }
+
         private class PassData
         {
             public TextureHandle SourceTexture;
@@ -35,20 +61,23 @@ namespace SLSFramework.Rendering.PostProcessing
             public List<int> ActiveIndices;
             public List<ScriptablePostProcessorVolume> Volumes;
             public List<ProfilingSampler> Profilers;
-            public RenderingData RenderingData; // 数据结构保持不变
+            public RenderingData RenderingData;
         }
 
-        // 修改 Setup：接收 RenderingData 并保存
-        // 注意：这里的 Setup 需要在 AddRenderPasses 中调用
         public bool Setup(ref RenderingData renderingData)
         {
-            this.m_RenderingData = renderingData; // 捕获数据
+            this.m_RenderingData = renderingData;
 
             activePostProcessorIndex.Clear();
             for (int i = 0; i < postProcessors.Count; i++)
             {
-                postProcessors[i].Setup();
-                if (postProcessors[i].IsActive())
+                var volume = postProcessors[i];
+                // 关键修复：从 Pass 的缓存池获取材质并注入给 Volume
+                var mat = GetOrCreateMaterial(volume.GetShaderName());
+                volume.SetMaterial(mat);
+
+                volume.Setup();
+                if (volume.IsActive())
                 {
                     activePostProcessorIndex.Add(i);
                 }
@@ -61,50 +90,37 @@ namespace SLSFramework.Rendering.PostProcessing
             var resourceData = frameData.Get<UniversalResourceData>();
             var cameraData = frameData.Get<UniversalCameraData>();
 
-            // 如果没有激活的后处理，直接跳过
             if (activePostProcessorIndex.Count == 0) return;
 
-            // 1. 获取相机的基础描述符 (这是旧的 RenderTextureDescriptor)
             var cameraDesc = cameraData.cameraTargetDescriptor;
-
-            // 2. 【核心修正】创建一个新的 RenderGraph 专用描述符 (TextureDesc)
-            // 只有 TextureDesc 才能设置 name，也不能直接把 cameraDesc 强转过去，必须手动赋值
             var rgDesc = new TextureDesc(cameraDesc.width, cameraDesc.height);
             rgDesc.colorFormat = cameraDesc.graphicsFormat;
-            rgDesc.depthBufferBits = DepthBits.None; // 后处理不需要深度
-            rgDesc.msaaSamples = MSAASamples.None; // 后处理通常不需要 MSAA
+            rgDesc.depthBufferBits = DepthBits.None;
+            rgDesc.msaaSamples = MSAASamples.None;
 
             using (var builder = renderGraph.AddUnsafePass<PassData>(profilerTag, out var passData))
             {
-                // 填充数据
                 passData.SourceTexture = resourceData.activeColorTexture;
                 passData.TargetTexture = resourceData.activeColorTexture;
                 passData.ActiveIndices = activePostProcessorIndex;
                 passData.Volumes = postProcessors;
                 passData.Profilers = profilingSamplers;
-
-                // 使用我们在 Setup 中缓存的旧版数据 (解决 UniversalRenderingData 找不到的问题)
                 passData.RenderingData = m_RenderingData;
 
-                // 3. 【核心修正】设置名字并创建纹理
-                // 这里使用的是 rgDesc (TextureDesc 类型)，它有 name 属性
                 rgDesc.name = "_TemporaryRenderTextureA";
                 passData.TempTextureA = renderGraph.CreateTexture(rgDesc);
 
                 rgDesc.name = "_TemporaryRenderTextureB";
                 passData.TempTextureB = renderGraph.CreateTexture(rgDesc);
 
-                // 声明依赖关系 (保持不变)
                 builder.UseTexture(passData.SourceTexture, AccessFlags.Read);
                 builder.UseTexture(passData.TempTextureA, AccessFlags.ReadWrite);
                 builder.UseTexture(passData.TempTextureB, AccessFlags.ReadWrite);
                 builder.UseTexture(passData.TargetTexture, AccessFlags.ReadWrite);
 
-                // 设置执行逻辑 (保持不变)
                 builder.SetRenderFunc((PassData data, UnsafeGraphContext context) =>
                 {
                     var cmd = CommandBufferHelpers.GetNativeCommandBuffer(context.cmd);
-
                     var source = data.SourceTexture;
                     var target = data.TargetTexture;
                     var tempA = data.TempTextureA;
@@ -117,7 +133,6 @@ namespace SLSFramework.Rendering.PostProcessing
                         {
                             data.Volumes[index].Render(cmd, ref data.RenderingData, source, tempA);
                         }
-
                         Blitter.BlitCameraTexture(cmd, tempA, target);
                     }
                     else
@@ -133,10 +148,8 @@ namespace SLSFramework.Rendering.PostProcessing
                             {
                                 postProcessor.Render(cmd, ref data.RenderingData, currSource, currDest);
                             }
-
                             CoreUtils.Swap(ref currSource, ref currDest);
                         }
-
                         Blitter.BlitCameraTexture(cmd, currSource, target);
                     }
                 });