基于可编程GPU的三维地形场景中树的渲染优化技术

摘要

充分利用当前高性能可编程图形硬件特性及OpenGL 4的最新性能,结合LOD加速技术,采用多遍绘制技术,以及图像遮挡剔除技术来进行树实例的可见性剔除可以优化三维地形场景的渲染.实验主要是对地形场景中树的渲染进行优化,数据结果表明这些优化方法在保证地形场景真实性的同时,减少了场景的几何复杂度,提高了帧刷新率.%Make full use of the current high-performance programmable graphics hardware features and OpenGL 4s latest performance, combined with LOD accelerating technology, using multipass rendering techniques for instance culling and image occlusion culling technology the rendering of three-dimensional terrain can be optimized. The experiment is mainly aimed at the terrain scene tree-rendering optimization. Data results show that the optimization method in guarantee the authenticity of the terrain scene at the same time could reduce the complexity of the geometry of the scene. The frame refresh rate is improved.