I have found the threads "make games not engines" which was the reason I used to be trying to keep myself from ogre , but I'm established i can make my own sucky game motor , rendering pipeline wiki gives a way to use ogre 3d into game motor ? https://arcadegameonline46542.onzeblog.com/36837149/the-smart-trick-of-game-online-that-nobody-is-discussing