初始提交: UE5.3项目基础框架

Plugins/CesiumForUnreal/Source/ThirdParty/include/CesiumGltf/VertexAttributeSemantics.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <array>
+#include <string>
+
+namespace CesiumGltf {
+
+/**
+ * @brief The standard glTF vertex attribute semantics from the specification
+ * plus additional vertex attribute semantics from extensions.
+ */
+struct VertexAttributeSemantics {
+  /**
+   * @brief Unitless XYZ vertex positions.
+   */
+  static const std::string POSITION;
+
+  /**
+   * @brief Normalized XYZ vertex normals.
+   */
+  static const std::string NORMAL;
+
+  /**
+   * @brief XYZW vertex tangents where the XYZ portion is normalized, and the W
+   * component is a sign value (-1 or +1) indicating handedness of the tangent
+   * basis.
+   */
+  static const std::string TANGENT;
+
+  /**
+   * @brief ST texture coordinates
+   */
+  static const std::array<std::string, 8> TEXCOORD_n;
+
+  /**
+   * @brief RGB or RGBA vertex color linear multiplier.
+   */
+  static const std::array<std::string, 8> COLOR_n;
+
+  /**
+   * @brief The indices of the joints from the corresponding skin.joints array
+   * that affect the vertex.
+   */
+  static const std::array<std::string, 8> JOINTS_n;
+
+  /**
+   * @brief The weights indicating how strongly the joint influences the vertex.
+   */
+  static const std::array<std::string, 8> WEIGHTS_n;
+
+  /**
+   * @brief Feature IDs used by `EXT_mesh_features`.
+   */
+  static const std::array<std::string, 8> FEATURE_ID_n;
+};
+
+} // namespace CesiumGltf