摘要:
With the development of intelligent,automatic driving and new energy,it is an important trend to adopt full digital 3D instrument clusters.In this paper,a new design method of 3D instrument clusters which based on multi-core Cortex-A9 is proposed.According to the key technical problems in the process of rendering deformation and jagged edges,a patch segmentation method at the high curvature where the 3D model is locally changed and uses the parameterization method of the Least Squares Conformal Maps is proposed,which inhibited the deformation at the same time,and improves the visualization of the 3D Automotive Instrument effect.Experiments show that,not only is verified in MATLAB,finally,taking the electric vehicle application scene as an example,this method can well show the texture details of Instrument Clusters,but also is implemented in OpenGL|ES technology under embedded Linux environment and displayed on the TFT-LCD.In this paper,the triangular mesh model of texture mapping technology will be used,so that the Full Digital 3D Automotive Instrument Clusters has a sense of reality and improves the rendering speed.%随着汽车向智能化、自动驾驶以及新能源的不断发展,采用三维全液晶仪表成为一个重要趋势.本文研究提出一套基于多核Cortex-A9的三维汽车全液晶仪表盘设计方法,并针对渲染过程中出现的形变和边缘锯齿等关键技术问题,提出一种基于三角网格模型的面片分割方法,即在三维模型局部变化的高曲率处进行面片分割,并利用最小二乘保角映射的参数化方法,有效抑制了纹理映射后模型的锯齿现象,提高了三维全液晶仪表的视觉效果.实验证明,该方法很好地表现了三维全液晶仪表的纹理细节,本文在MATLAB上对算法可行性进行了验证.最后,以电动汽车应用场景为例,在嵌入式Linux环境下应用OpenGL[ES技术对模型进行了算法实现,并在TFT-LCD上进行三维渲染显示.本文运用的三角网格模型的纹理映射技术,使三维全液晶仪表具有真实感,并提高了渲染速度.