From 0023014cc2c4288d9e6a833a57ba1593583c8746 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Fri, 9 Aug 2024 18:39:47 +0200
Subject: [PATCH] Add `MaterialInstance.ResetParameters`

---
 Source/Engine/Content/Assets/MaterialInstance.cpp | 8 ++++++++
 Source/Engine/Content/Assets/MaterialInstance.h   | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/Source/Engine/Content/Assets/MaterialInstance.cpp b/Source/Engine/Content/Assets/MaterialInstance.cpp
index 4afcde7b9..ca9e793b3 100644
--- a/Source/Engine/Content/Assets/MaterialInstance.cpp
+++ b/Source/Engine/Content/Assets/MaterialInstance.cpp
@@ -291,6 +291,14 @@ void MaterialInstance::SetBaseMaterial(MaterialBase* baseMaterial)
     }
 }
 
+void MaterialInstance::ResetParameters()
+{
+    for (auto& param : Params)
+    {
+        param.SetIsOverride(false);
+    }
+}
+
 #if USE_EDITOR
 
 bool MaterialInstance::Save(const StringView& path)
diff --git a/Source/Engine/Content/Assets/MaterialInstance.h b/Source/Engine/Content/Assets/MaterialInstance.h
index 3e9f2ec2a..9d87cdf5b 100644
--- a/Source/Engine/Content/Assets/MaterialInstance.h
+++ b/Source/Engine/Content/Assets/MaterialInstance.h
@@ -28,6 +28,11 @@ public:
     /// <param name="baseMaterial">The base material.</param>
     API_PROPERTY() void SetBaseMaterial(MaterialBase* baseMaterial);
 
+    /// <summary>
+    /// Resets all parameters back to the base material (including disabling parameter overrides).
+    /// </summary>
+    API_FUNCTION() void ResetParameters();
+
 #if USE_EDITOR
 
     /// <summary>