1 files changed, 66 insertions, 0 deletions
diff --git a/Assets/Scripts/Rendering/RenderingUtility.cs b/Assets/Scripts/Rendering/RenderingUtility.cs
new file mode 100644
index 00000000..297a9b79
--- /dev/null
+++ b/Assets/Scripts/Rendering/RenderingUtility.cs
@@ -0,0 +1,66 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Rendering;
+
+// https://docs.unity3d.com/Manual/GraphicsCommandBuffers.html
+// https://docs.unity3d.com/ScriptReference/Rendering.CameraEvent.html
+
+// 前向渲染的camera events
+// * DepthTexture
+// * DepthNormalTexture
+// * ForwardOpaque
+// * ImageEffectsOpaque
+// * Skybox
+// * ForwardAlpha
+// * ImageEffects
+// * Everything
+
+[Flags]
+public enum ERenderingEvent
+{
+    None = 0,
+    BeforeDepthTexture = 1,
+    BeforeDepthNormalsTexture = 1 << 1,
+    BeforeForwardOpaque = 1 << 2,
+    BeforeImageEffectsOpaque = 1 << 3,
+    BeforeSkybox = 1 << 4,
+    BeforeForwardAlpha = 1 << 5,
+    BeforeImageEffects = 1 << 6,
+    //BeforeEverything         = 1 << 7,
+    AfterDepthTexture = 1 << 8,
+    AfterDepthNormalsTexture = 1 << 9,
+    AfterForwardOpaque = 1 << 10,
+    AfterImageEffectsOpaque = 1 << 11,
+    AfterSkybox = 1 << 12,
+    AfterForwardAlpha = 1 << 13,
+    AfterImageEffects = 1 << 14,
+    AfterEverything = 1 << 15,
+}
+
+public static class RenderingUtility
+{
+    public static Dictionary<ERenderingEvent, CameraEvent> renderingEventToCameraEventDic = new Dictionary<ERenderingEvent, CameraEvent> {
+        {ERenderingEvent.BeforeDepthTexture, CameraEvent.BeforeDepthTexture },
+        {ERenderingEvent.BeforeDepthNormalsTexture, CameraEvent.BeforeDepthNormalsTexture },
+        {ERenderingEvent.BeforeForwardOpaque, CameraEvent.BeforeForwardOpaque },
+        {ERenderingEvent.BeforeImageEffectsOpaque, CameraEvent.BeforeImageEffectsOpaque },
+        {ERenderingEvent.BeforeSkybox, CameraEvent.BeforeSkybox },
+        {ERenderingEvent.BeforeForwardAlpha, CameraEvent.BeforeForwardAlpha },
+        {ERenderingEvent.BeforeImageEffects, CameraEvent.BeforeImageEffects },
+        {ERenderingEvent.AfterDepthTexture, CameraEvent.AfterDepthTexture },
+        {ERenderingEvent.AfterDepthNormalsTexture, CameraEvent.AfterDepthNormalsTexture },
+        {ERenderingEvent.AfterForwardOpaque, CameraEvent.AfterForwardOpaque },
+        {ERenderingEvent.AfterImageEffectsOpaque, CameraEvent.AfterImageEffectsOpaque },
+        {ERenderingEvent.AfterSkybox, CameraEvent.AfterSkybox },
+        {ERenderingEvent.AfterForwardAlpha, CameraEvent.AfterForwardAlpha },
+        {ERenderingEvent.AfterImageEffects, CameraEvent.AfterImageEffects },
+        {ERenderingEvent.AfterEverything, CameraEvent.AfterEverything },
+    };
+
+    public static CameraEvent ToCameraEvent(this ERenderingEvent e)
+    {
+        return renderingEventToCameraEventDic[e];
+    }
+}