add more handshake output

BasaltPresenter/Plugins/ObjectLoader/ObjObjectLoader/main.cpp

@@ -3,6 +3,8 @@
 #include <tiny_obj_loader.h>
 #include <vector>
 #include <string>
+#include <filesystem>
+#include <fstream>
 
 namespace object_loader = ::basalt::shared::object_loader;
 using object_loader::IObjectLoader;
@@ -30,9 +32,15 @@ public:
         std::string err;
 
         // Load the OBJ file
-        if (!tinyobj::LoadObj(&attrib, &shapes, &materials, &err, this->config.filename.c_str())) {
+        std::ifstream fs;
+        fs.open(std::filesystem::path(this->config.filename));
+        if (!fs.is_open()) {
+            throw std::runtime_error("fail to open obj file");
+        }
+        if (!tinyobj::LoadObj(&attrib, &shapes, &materials, &err, &fs)) {
             throw std::runtime_error("fail to load obj file");
         }
+        fs.close();
 
         // Create one object from all shapes in the OBJ file
         std::vector<Vector3> vertices;