初始提交: UE5.3项目基础框架

Plugins/CesiumForUnreal/Source/CesiumRuntime/Private/CesiumPrimitiveMetadata.cpp

@@ -0,0 +1,48 @@
+// Copyright 2020-2024 CesiumGS, Inc. and Contributors
+
+#include "CesiumPrimitiveMetadata.h"
+#include "CesiumGltf/AccessorView.h"
+#include "CesiumGltf/ExtensionMeshPrimitiveExtStructuralMetadata.h"
+#include "CesiumGltf/Model.h"
+#include "CesiumGltfPrimitiveComponent.h"
+
+static FCesiumPrimitiveMetadata EmptyPrimitiveMetadata;
+
+FCesiumPrimitiveMetadata::FCesiumPrimitiveMetadata(
+    const CesiumGltf::MeshPrimitive& Primitive,
+    const CesiumGltf::ExtensionMeshPrimitiveExtStructuralMetadata& Metadata)
+    : _propertyTextureIndices(), _propertyAttributeIndices() {
+  this->_propertyTextureIndices.Reserve(Metadata.propertyTextures.size());
+  for (const int64 propertyTextureIndex : Metadata.propertyTextures) {
+    this->_propertyTextureIndices.Emplace(propertyTextureIndex);
+  }
+
+  this->_propertyAttributeIndices.Reserve(Metadata.propertyAttributes.size());
+  for (const int64 propertyAttributeIndex : Metadata.propertyAttributes) {
+    this->_propertyAttributeIndices.Emplace(propertyAttributeIndex);
+  }
+}
+
+const FCesiumPrimitiveMetadata&
+UCesiumPrimitiveMetadataBlueprintLibrary::GetPrimitiveMetadata(
+    const UPrimitiveComponent* component) {
+  const UCesiumGltfPrimitiveComponent* pGltfComponent =
+      Cast<UCesiumGltfPrimitiveComponent>(component);
+  if (!IsValid(pGltfComponent)) {
+    return EmptyPrimitiveMetadata;
+  }
+
+  return pGltfComponent->getPrimitiveData().Metadata;
+}
+
+const TArray<int64>&
+UCesiumPrimitiveMetadataBlueprintLibrary::GetPropertyTextureIndices(
+    UPARAM(ref) const FCesiumPrimitiveMetadata& PrimitiveMetadata) {
+  return PrimitiveMetadata._propertyTextureIndices;
+}
+
+const TArray<int64>&
+UCesiumPrimitiveMetadataBlueprintLibrary::GetPropertyAttributeIndices(
+    UPARAM(ref) const FCesiumPrimitiveMetadata& PrimitiveMetadata) {
+  return PrimitiveMetadata._propertyAttributeIndices;
+}