添加双纹理采样

vulkan/AppBase.h

@@ -38,6 +38,9 @@
 #include <mutex>
 #include <chrono>
 #include <ctime>
+#include <cmath>
+#include <unordered_map>
+#include <array>
 
 void VK_CHECK(VkResult ret);
 
@@ -51,6 +54,13 @@ struct QueueFamilyIndices {
     }
 };
 
+struct TextureLoadingVertexStructure
+{
+    float pos[3];
+    float uv[2];
+    float normal[3];
+};
+
 class AppBase
 {
 public:
@@ -81,6 +91,15 @@ protected:
 
 	bool enableValidationLayers = true;
 	VkDebugUtilsMessengerEXT debugMessenger;
+
+
+    // 计算面的法线
+    void calculateFaceNormal(const TextureLoadingVertexStructure& v0, const TextureLoadingVertexStructure& v1, const TextureLoadingVertexStructure& v2, float* outNormal);
+   
+
+    // 计算所有顶点的法线
+    void calculateVertexNormals(std::vector<TextureLoadingVertexStructure>& obj_vertices, const std::vector<uint32_t>& obj_indices);
+
 };
 
 #endif // VULKAN_UTILS_H