Disabled depth test

gui/src/infrastructure.cpp

@@ -63,6 +63,10 @@ bool Infrastructure::init(const std::string name, const int width, const int hei
     //SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 16);
     //glEnable(GL_MULTISAMPLE);
 
+    //disable depth testing
+    glEnable(GL_DEPTH_TEST);
+    glDepthFunc(GL_ALWAYS);
+
     //transparency
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);