一些特效

Assets/Shaders/ClearRTAfterTransparent.cs

@@ -0,0 +1,34 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Rendering;
+using UnityEngine.Rendering.Universal;
+
+public class ClearRTAfterTransparent : ScriptableRendererFeature
+{
+    class ClearPass : ScriptableRenderPass
+    {
+        public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
+        {
+            CommandBuffer cmd = CommandBufferPool.Get("Clear RT After Transparent");
+            cmd.ClearRenderTarget(true, true, Color.clear); // 清颜色 & 深度
+            context.ExecuteCommandBuffer(cmd);
+            CommandBufferPool.Release(cmd);
+        }
+    }
+
+    ClearPass pass;
+
+    public override void Create()
+    {
+        pass = new ClearPass
+        {
+            renderPassEvent = RenderPassEvent.AfterRenderingTransparents // 在透明物体之后
+        };
+    }
+
+    public override void AddRenderPasses(ScriptableRenderer renderer, ref RenderingData renderingData)
+    {
+        renderer.EnqueuePass(pass);
+    }
+}