feat(reference): add urp nahida sample project

MVS/NahidaRender/Assets/Scripts/Rendering/PostProcessFeature.cs

@@ -0,0 +1,36 @@
+using UnityEngine;
+using UnityEngine.Rendering.Universal;
+
+namespace Nahida.Rendering
+{
+    public class PostProcessFeature : ScriptableRendererFeature
+    {
+        [SerializeField]
+        private RenderPassEvent m_RenderPassEvent = RenderPassEvent.BeforeRenderingPostProcessing;
+
+        [SerializeField]
+        private Shader m_Shader;
+
+        private PostProcessPass _postProcessPass;
+
+        public const int BloomIterations = 4;
+
+        public override void Create()
+        {
+            if (m_Shader == null)
+                m_Shader = Shader.Find("URPGenshinPostProcess");
+            _postProcessPass = new PostProcessPass(m_RenderPassEvent, m_Shader, BloomIterations);
+        }
+
+        public override void AddRenderPasses(ScriptableRenderer renderer, ref RenderingData renderingData)
+        {
+            renderer.EnqueuePass(_postProcessPass);
+        }
+
+        protected override void Dispose(bool disposing)
+        {
+            _postProcessPass?.Dispose();
+            _postProcessPass = null;
+        }
+    }
+}