移动终端高效自适应网格细化架构

Efficient Adaptive Mesh Refinement Architecture on Mobile Terminals

针对移动终端难以快速逼真展现3维模型问题,提出了适应于移动终端的自适应网格细化架构。首先,为减少网格细化所需模板和顶点缓冲对象数量,设计了通用自适应细化模板。其次,分析多分辨率细节网格裂缝问题,提出偏移参数化重心坐标解决裂缝的方法。然后,为避免屏幕空间细化测度"切口"现象,给出了通过毗邻面来优化边细化层次的方法。最后,在架构中引入Phong细化来实现曲面平滑。实验结果表明,该自适应网格细化架构在满足视觉需求的情况下,能有效提高移动终端的3维图形绘制效率。

For the problem that mobile terminals can hardly show the three-dimensional models fast and realistically,the adaptive mesh refinement architecture adapting to mobile terminals was proposed. The general adaptive refinement template was designed to reduce the number of template and vertex buffer object in the traditional mesh refinement. Then the crack was solved with offsetting the parametric barycentric coordinates after analyzing the crack problems of multi-resolution detail meshes. The edge refinement level was optimized by adjacent surfaces in order to avoid the cut phenomenon of screen space refinement metric. Finally, Phong refinement was introduced in the architecture to smooth curved surfaces. The experimental results showed that this mobile terminal adaptive mesh refinement architecture could effectively improve the 3D graphics rendering efficiency of the mobile terminals in the case of meeting the visual demand.