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Packages/com.waveharmonic.crest/Runtime/Scripts/Volume/UnderwaterRenderer.Legacy.cs

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+// Crest Water System
+// Copyright © 2024 Wave Harmonic. All rights reserved.
+
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace WaveHarmonic.Crest
+{
+    partial class UnderwaterRenderer
+    {
+        bool _HasEffectCommandBuffersBeenRegistered;
+
+        void OnEnableLegacy()
+        {
+            SetupUnderwaterEffect();
+
+            RenderPipelineManager.activeRenderPipelineTypeChanged -= OnDisableLegacy;
+            RenderPipelineManager.activeRenderPipelineTypeChanged += OnDisableLegacy;
+        }
+
+        void OnDisableLegacy()
+        {
+            RenderPipelineManager.activeRenderPipelineTypeChanged -= OnDisableLegacy;
+        }
+
+        // Listening to OnPreCull. Camera must have underwater layer.
+        void OnBeforeLegacyRender(Camera camera)
+        {
+            if (ShouldRender(camera, Pass.Effect))
+            {
+                _Water.UpdateMatrices(camera);
+
+                _Water.OnBeginCameraOpaqueTexture(camera);
+
+                var @event = RenderBeforeTransparency ? CameraEvent.BeforeForwardAlpha : CameraEvent.AfterForwardAlpha;
+                camera.AddCommandBuffer(@event, _EffectCommandBuffer);
+                OnPreRenderUnderwaterEffect(camera);
+                _HasEffectCommandBuffersBeenRegistered = true;
+            }
+        }
+
+        void OnAfterLegacyRender(Camera camera)
+        {
+            if (_HasEffectCommandBuffersBeenRegistered)
+            {
+                var @event = RenderBeforeTransparency ? CameraEvent.BeforeForwardAlpha : CameraEvent.AfterForwardAlpha;
+                camera.RemoveCommandBuffer(@event, _EffectCommandBuffer);
+                _EffectCommandBuffer?.Clear();
+            }
+
+            _Water.OnEndCameraOpaqueTexture(camera);
+
+            _HasEffectCommandBuffersBeenRegistered = false;
+        }
+    }
+}