Allow live switching between FP16 and FP32

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Editor/PostProcessLayerEditor.cs

@@ -34,6 +34,7 @@ namespace UnityEditor.Rendering.PostProcessing
         SerializedProperty m_FsrQualityMode;
         SerializedProperty m_FsrPerformSharpen;
         SerializedProperty m_FsrSharpness;
+        SerializedProperty m_FsrEnableFP16;
         SerializedProperty m_FsrExposureSource;
         SerializedProperty m_FsrExposureTexture;
         SerializedProperty m_FsrPreExposure;
@@ -94,6 +95,7 @@ namespace UnityEditor.Rendering.PostProcessing
             m_FsrQualityMode = FindProperty(x => x.upscaling.qualityMode);
             m_FsrPerformSharpen = FindProperty(x => x.upscaling.performSharpenPass);
             m_FsrSharpness = FindProperty(x => x.upscaling.sharpness);
+            m_FsrEnableFP16 = FindProperty(x => x.upscaling.enableFP16);
             m_FsrExposureSource = FindProperty(x => x.upscaling.exposureSource);
             m_FsrExposureTexture = FindProperty(x => x.upscaling.exposure);
             m_FsrPreExposure = FindProperty(x => x.upscaling.preExposure);
@@ -230,6 +232,7 @@ namespace UnityEditor.Rendering.PostProcessing
                     EditorGUILayout.PropertyField(m_FsrQualityMode);
                     EditorGUILayout.PropertyField(m_FsrPerformSharpen);
                     EditorGUILayout.PropertyField(m_FsrSharpness);
+                    EditorGUILayout.PropertyField(m_FsrEnableFP16);
                     EditorGUILayout.PropertyField(m_FsrExposureSource);
                     if (m_FsrExposureSource.intValue == (int)Upscaling.ExposureSource.Manual) EditorGUILayout.PropertyField(m_FsrExposureTexture);
                     EditorGUILayout.PropertyField(m_FsrPreExposure);

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling.cs

@@ -34,6 +34,8 @@ namespace UnityEngine.Rendering.PostProcessing
         public bool performSharpenPass = true;
         [Tooltip("Strength of the sharpening effect.")]
         [Range(0, 1)] public float sharpness = 0.8f;
+
+        public bool enableFP16 = true;
         
         [Tooltip("Choose where to get the exposure value from. Use auto-exposure from either the upscaler or Unity, provide a manual exposure texture, or use a default value.")]
         public ExposureSource exposureSource = ExposureSource.Auto;
@@ -112,6 +114,7 @@ namespace UnityEngine.Rendering.PostProcessing
         private Fsr2.QualityMode _prevQualityMode;
         private ExposureSource _prevExposureSource;
         private Vector2Int _prevUpscaleSize;
+        private bool _prevFP16;
 
         private Rect _originalRect;
 		
@@ -165,7 +168,7 @@ namespace UnityEngine.Rendering.PostProcessing
 			// Monitor for any resolution changes and recreate the upscaler context if necessary
 			// We can't create an upscaler context without info from the post-processing context, so delay the initial setup until here
 			if (!_initialized || _upscaler == null || _upscaleSize.x != _prevUpscaleSize.x || _upscaleSize.y != _prevUpscaleSize.y || 
-			    upscalerType != _prevUpscalerType || qualityMode != _prevQualityMode || exposureSource != _prevExposureSource)
+			    upscalerType != _prevUpscalerType || qualityMode != _prevQualityMode || exposureSource != _prevExposureSource || enableFP16 != _prevFP16)
 			{
 				DestroyUpscaler();
 				CreateUpscaler(context);
@@ -199,6 +202,7 @@ namespace UnityEngine.Rendering.PostProcessing
 			_prevQualityMode = qualityMode;
 			_prevExposureSource = exposureSource;
 			_prevUpscaleSize = _upscaleSize;
+			_prevFP16 = enableFP16;
 			
 			_callbacks = callbacksFactory(context);
 			

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/ASRUpscaler.cs

@@ -17,7 +17,7 @@ namespace UnityEngine.Rendering.PostProcessing
 		public override void CreateContext(PostProcessRenderContext context, Upscaling config)
 		{
 			// Initialize ASR context
-			Asr.InitializationFlags flags = Asr.InitializationFlags.EnableFP16Usage;
+			Asr.InitializationFlags flags = config.enableFP16 ? Asr.InitializationFlags.EnableFP16Usage : 0;
 			if (context.camera.allowHDR) flags |= Asr.InitializationFlags.EnableHighDynamicRange;
 			if (config.exposureSource == Upscaling.ExposureSource.Auto) flags |= Asr.InitializationFlags.EnableAutoExposure;
 			if (RuntimeUtilities.IsDynamicResolutionEnabled(context.camera)) flags |= Asr.InitializationFlags.EnableDynamicResolution;