Hi. I'm a beginner in game development and im making a 3d game in opengl. I'm loading 3d models in the game using an Obj parser and now that I have to animate the 3d models, I was wondering how animation is normally done in games. I couldnt find any good resources on the subject. Are skeletons used? or are they simply done using models in different postures as 'frames'. links to appropriate resources would be highly appreciated.