I answer that question as a general pipeline which was - First need to create a object with the mesh then need to apply shader to that after object looks good then need to add lighting for look and feel then it goes for the rendering. After this answer he told me sorry wrong answer so begged him please give me answer for the question so he gave me same answer but using different technical words which are relate to openGL. The answer was - create vertex then add camera plane, then cliping mask, then shader then scene light and last the process goes for the rasterization. Dont know is iam wrong or he. Best of luck Be prepared.