.3-d Game Engine Scene Rendering And Illumination Rendering Technology Research And Implementation

A video game is a game that involves interaction with a user interface to generate visual feedback on a video device. The word video in video game traditionally referred to a raster display device.In the last years triangle meshes have become increasingly popular and are nowadays intensively used in many different areas of computer graphics and geometry processing. Moreover, the consequent use of triangle meshes as surface representation avoids error-prone conversions, besides classical geometric modeling, other major areas frequently employing triangle meshes are computer games and movie production. This thesis discusses the whole geometry processing pipeline based on triangle meshes.Rendering is the process of generating an image from a model, has uses in architecture, computer game, simulators and movie or TV special effects, each employing a different balance of features and techniques. In the case of 3D graphics, rendering may be done slowly, as in pre-rendering, or in real time. Pre-rendering is a computationally intensive process that is typically used for movie creation, while real-time rendering is often done for 3D video games which rely on the use of graphics cards with 3D hardware accelerators or based some accelerated algorithms. On the inside, a renderer is a carefully engineered program, based on a selective mixture of disciplines related to: light physics, visual perception, mathematics, and software development.Many rendering algorithms have been researched, and software used for rendering may employ a number of different techniques to obtain a final image.In this paper, we research some key problem of 3D video game, including:Some accelerated rendering algorithms were present, such as realistic image, Culling Technologies.The triangle mesh modeling technique was researched, than be use to realize 3D LOD terrain based sight field decline technique, present a new algorithm and had an efficient implementation. A global illumination model was proposed. Based on this, a new algorithm was present for 3D game scenes rendering and make a good experiment.