The Creation Of 3D Scene Based On OpenGL

The 3D graphics system simulates and reflects objects in the real world vividly.OpenGL is a 2D/3D graphics standard in charge of Architecture Review Board(ARB)and is a software interface to hardware.Its powerful pipeline is competent for rendering graphics scene.This paper mainly discussed how to create an OpenGL application framework in Windows operation efficiently and vividly.The main subjects are as follows.1.The initialization of OpenGL programming framework is discussed.The operation of attaching OpenGL render context with Windows Device Context is finished with the conclusion that there is only one active render context.2.The relationship between OpenGL world coordinate and model coordinate has been discovered.And the model-view matrixs stack can be used to construct various of models logicaly.3.The method of converting model to geometric primitives and passing primitives infomation to OpenGL efficiently is analyzed.4.The lighting system and default color system cannot be valid at one time. 5.The OpenGL's aim is to render and is difficult to create complicated models.It is easy to import model infomation from other professional modeling software such as 3DSMax.6.The mechanism of improving the efficiency of rendering scene were discussed,which include the display list,clipping and syncronization.