Added a "Force Forward Compatibility" toggle on AO

Forces compatibility with Forward rendered objects when working with the
Deferred rendering path.

Author: Chman

PostProcessing/Editor/Models/AmbientOcclusionModelEditor.cs

@@ -11,6 +11,7 @@ public class AmbientOcclusionModelEditor : PostProcessingModelEditor
         SerializedProperty m_Radius;
         SerializedProperty m_SampleCount;
         SerializedProperty m_Downsampling;
+        SerializedProperty m_ForceForwardCompatibility;
         SerializedProperty m_AmbientOnly;
         SerializedProperty m_HighPrecision;
 
@@ -20,6 +21,7 @@ public override void OnEnable()
             m_Radius = FindSetting((Settings x) => x.radius);
             m_SampleCount = FindSetting((Settings x) => x.sampleCount);
             m_Downsampling = FindSetting((Settings x) => x.downsampling);
+            m_ForceForwardCompatibility = FindSetting((Settings x) => x.forceForwardCompatibility);
             m_AmbientOnly = FindSetting((Settings x) => x.ambientOnly);
             m_HighPrecision = FindSetting((Settings x) => x.highPrecision);
         }
@@ -30,8 +32,11 @@ public override void OnInspectorGUI()
             EditorGUILayout.PropertyField(m_Radius);
             EditorGUILayout.PropertyField(m_SampleCount);
             EditorGUILayout.PropertyField(m_Downsampling);
-            EditorGUILayout.PropertyField(m_AmbientOnly, EditorGUIHelper.GetContent("Ambient Only (Deferred + HDR)"));
+            EditorGUILayout.PropertyField(m_ForceForwardCompatibility);
             EditorGUILayout.PropertyField(m_HighPrecision, EditorGUIHelper.GetContent("High Precision (Forward)"));
+
+            using (new EditorGUI.DisabledGroupScope(m_ForceForwardCompatibility.boolValue))
+                EditorGUILayout.PropertyField(m_AmbientOnly, EditorGUIHelper.GetContent("Ambient Only (Deferred + HDR)"));
         }
     }
 }

PostProcessing/Runtime/Components/AmbientOcclusionComponent.cs

@@ -39,7 +39,7 @@ OcclusionSource occlusionSource
         {
             get
             {
-                if (context.isGBufferAvailable)
+                if (context.isGBufferAvailable && !model.settings.forceForwardCompatibility)
                     return OcclusionSource.GBuffer;
 
                 if (model.settings.highPrecision && !context.isGBufferAvailable)
@@ -51,7 +51,7 @@ OcclusionSource occlusionSource
 
         bool ambientOnlySupported
         {
-            get { return context.isHdr && model.settings.ambientOnly && context.isGBufferAvailable; }
+            get { return context.isHdr && model.settings.ambientOnly && context.isGBufferAvailable && !model.settings.forceForwardCompatibility; }
         }
 
         public override bool active

PostProcessing/Runtime/Models/AmbientOcclusionModel.cs

@@ -28,6 +28,9 @@ public struct Settings
             [Tooltip("Halves the resolution of the effect to increase performance.")]
             public bool downsampling;
 
+            [Tooltip("Forces compatibility with Forward rendered objects when working with the Deferred rendering path.")]
+            public bool forceForwardCompatibility;
+
             [Tooltip("Enables the ambient-only mode in that the effect only affects ambient lighting. This mode is only available with the Deferred rendering path and HDR rendering.")]
             public bool ambientOnly;
 
@@ -44,6 +47,7 @@ public static Settings defaultSettings
                         radius = 0.3f,
                         sampleCount = SampleCount.Medium,
                         downsampling = true,
+                        forceForwardCompatibility = false,
                         ambientOnly = false,
                         highPrecision = false
                     };

PostProcessing/Runtime/PostProcessingBehaviour.cs

@@ -97,7 +97,6 @@ void OnPreCull()
             //  - Temporal Antialiasing
             //  - Depth of Field
             //  - Motion blur
-            //  - Grain
             m_RenderingInSceneView = UnityEditor.SceneView.currentDrawingSceneView != null
                 && UnityEditor.SceneView.currentDrawingSceneView.camera == m_Camera;
 #endif