diff --git a/MshViewer/Source/OpenGlController.cpp b/MshViewer/Source/OpenGlController.cpp
index 9f70075..17fec58 100644
--- a/MshViewer/Source/OpenGlController.cpp
+++ b/MshViewer/Source/OpenGlController.cpp
@@ -6,6 +6,7 @@
 #include <string>
 #include <glm\gtc\matrix_transform.hpp>
 
+#include <iostream>
 
 #define VERTEX_SHADER "Shader/TextureShader.vert"
 #define FRAGMENT_SHADER "Shader/TextureShader.frag"
@@ -388,11 +389,13 @@ void OpenGLController::loadMsh(const char * path)
 		{
 			for (auto& mshIt : segIt->meshIndices)		// for every polygon
 			{
+				std::cout << "== Poly ==" << std::endl;
 				if (mshIt->size() >= 3)		// multipoly
 				{
 					// for every triangle of the multi polygon
 					for (unsigned int tri = 0; tri < mshIt->size() - 2; tri++)
 					{
+						std::cout << "== Triangle ==" << std::endl;
 						// for every edge of the triangle
 						for (int triEdge = 0; triEdge < 3; triEdge++)
 						{
@@ -400,7 +403,7 @@ void OpenGLController::loadMsh(const char * path)
 							// every edge has 3 coordinates
 							for (int j = 0; j < 3; j++)
 								tempVertex.position[j] = (GLfloat)segIt->vertex[(*mshIt)[triEdge > 0 ? tri + triEdge : 0] * 3 + j];
-
+							std::cout << (triEdge > 0 ? tri + triEdge : 0) << std::endl;
 							// and 2 UV
 							if (segIt->uv == NULL)
 							{
diff --git a/Release/Msh/4-Poly.msh b/Release/Msh/4-Poly.msh
new file mode 100644
index 0000000..18119ec
Binary files /dev/null and b/Release/Msh/4-Poly.msh differ
diff --git a/Release/Msh/5-Poly.msh b/Release/Msh/5-Poly.msh
new file mode 100644
index 0000000..d2e83a3
Binary files /dev/null and b/Release/Msh/5-Poly.msh differ
diff --git a/Release/Msh/6-poly.msh b/Release/Msh/6-poly.msh
new file mode 100644
index 0000000..5a398f6
Binary files /dev/null and b/Release/Msh/6-poly.msh differ