add triangulate mesh

Author: jasonlmfong

Model-Modifier/src/main.cpp

@@ -325,11 +325,17 @@ int main()
         if (ImGui::CollapsingHeader("Modify Model"))
         {
             ImGui::Indent();
+
             if (ImGui::Button("Original"))
             {
                 obj = objects.findObj(currObject); // search for the object requested
                 ModifyModel = true;
             }
+            if (ImGui::Button("Triangulate Surface"))
+            {
+                obj.MakeTriangleMesh();
+                ModifyModel = true;
+            }
             if (ImGui::Button("Beehive Surface"))
             {
                 Surface BH(obj);

Model-Modifier/src/scene/object/Object.cpp

@@ -148,3 +148,9 @@ void Object::TriangulateFaces()
 
     m_TriFaceIndices = triFaces;
 }
+
+void Object::MakeTriangleMesh()
+{
+    m_FaceIndices = m_TriFaceIndices;
+    m_NumPolygons = { {3, static_cast<unsigned int>(m_TriFaceIndices.size())} };
+}

Model-Modifier/src/scene/object/Object.h

@@ -25,6 +25,8 @@ class Object
 
 	void TriangulateFaces();
 
+	void MakeTriangleMesh();
+
 public:
 	glm::vec3 m_Min;
 	glm::vec3 m_Max;