GLSL-based Research And Applications Of3D Rendering

Development of3D graphics rendering technology is due to computer graphics. Large ofcommercial rendering programs are also gradually applied to the3D geographic informationsystem (GIS). Graphics-related technologies will be the key to open a new geographicinformation technologies.It is an important issue in computer graphics research, and the onlyway3D geographic information industry in the development process.It promotes the development and technology revolution of graphics,and has an importantsignificance in the3D GIS, including the real performance of effects and improvement ofrendering algorithm. The topic is how to deeper control visual effects on the GPUprogrammable pipeline. This is also the basis and focus of graphics research. It has two maincontents, namely rendering framework and post-processing techniques.In the study rendering framework, this dissertation describes the different renderingmethods, focusing on the overall process of delayed rendering, and light of differentalgorithms and texture mapping technique, the final design and implementation of a3D imagerendering system.In the study of post-processing technology, the main research is internationally popularpost-processing technologies, including environmental exposure rendering of High DynamicRange (HDR), eye’s simulation by Depth of Field (DOF), light and shade detail of ScreenSpace Ambient Occlusion (SSAO) and image color adjustment of Digital Image Processing(DIP).In this dissertation,3D rendering system use Open Scene Graph(OSG) to manage scenedata and OpenGL Shading Language(GLSL) to render effects. Scene data is VRMine export...