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Source/Engine/Level/Actors/ModelInstanceActor.cpp

@@ -0,0 +1,48 @@
+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+#include "ModelInstanceActor.h"
+#include "Engine/Content/Assets/MaterialInstance.h"
+#include "Engine/Level/Scene/SceneRendering.h"
+
+ModelInstanceActor::ModelInstanceActor(const SpawnParams& params)
+    : Actor(params)
+{
+}
+
+void ModelInstanceActor::SetEntries(const Array<ModelInstanceEntry>& value)
+{
+    Entries.Resize(value.Count());
+    for (int32 i = 0; i < value.Count(); i++)
+        Entries[i] = value[i];
+}
+
+void ModelInstanceActor::SetMaterial(int32 entryIndex, MaterialBase* material)
+{
+    CHECK(entryIndex >= 0 && entryIndex < Entries.Count());
+    Entries[entryIndex].Material = material;
+}
+
+MaterialInstance* ModelInstanceActor::CreateAndSetVirtualMaterialInstance(int32 entryIndex)
+{
+    auto material = Entries[entryIndex].Material.Get();
+    CHECK_RETURN(material && !material->WaitForLoaded(), nullptr);
+    const auto result = material->CreateVirtualInstance();
+    Entries[entryIndex].Material = result;
+    return result;
+}
+
+void ModelInstanceActor::OnEnable()
+{
+    GetSceneRendering()->AddGeometry(this);
+
+    // Base
+    Actor::OnEnable();
+}
+
+void ModelInstanceActor::OnDisable()
+{
+    GetSceneRendering()->RemoveGeometry(this);
+
+    // Base
+    Actor::OnDisable();
+}