“屏幕上出现闪烁”这个现象,许多人都以为是自己显示器的问题或是显示卡没有调试好的缘故,作为长期从事计算机图形显示卡研究人员,我想说这些想法是对的,但大家没有发现“闪烁”的根本问题。这根本问题就在于您使用的是早些时候的老式...“屏幕上出现闪烁”这个现象,许多人都以为是自己显示器的问题或是显示卡没有调试好的缘故,作为长期从事计算机图形显示卡研究人员,我想说这些想法是对的,但大家没有发现“闪烁”的根本问题。这根本问题就在于您使用的是早些时候的老式显存的显示卡,或现在叫图形卡。而这些显示卡已不再适应当今显示器的高分辨率和高刷新率的要求了。因为这些早期插在计算机内的显示卡,使用的都是标准DRAM数据存储器.英文叫FPMDRAM(RAM for Fast-Page Mode),中文是“动态随机存储器”,它和多数计算机上的主要系统RAM使用的是同一技术。它的“动态”的含义是指这种存储器必须每分钟被刷新好几次,否则它就会“遗忘”其存储的数据。这就是说DRAM有一个运行周期:一段时间内,由于存储器正被刷新,因此不能回应外部命令。展开更多
An efficient voxelization algorithm is presented for polygonal models by using the hardware support for the 2 D rasterization algorithm and the GPU programmable function to satisfy the volumetric display system. The v...An efficient voxelization algorithm is presented for polygonal models by using the hardware support for the 2 D rasterization algorithm and the GPU programmable function to satisfy the volumetric display system. The volume is sampled into slices by the rendering hardware and then slices are rasterated into a series of voxels. A composed buffer is used to record encoded voxels of the target volume to reduce the graphic memory requirement. In the algorithm, dynamic vertexes and index buffers are used to improve the voxelization efficiency. Experimental results show that the algorithm is efficient for a true 3-D display system.展开更多
This paper introduces the most advanced form of electronic chart display and information systems (ECDIS) which complies with the Performance Standards for ECDIS established by the International Maritime Organization (...This paper introduces the most advanced form of electronic chart display and information systems (ECDIS) which complies with the Performance Standards for ECDIS established by the International Maritime Organization (IMO) and the International Hydrographic Organization (IHO).It also describes the key features and the important functions of ECDIS.Then the future development of ECDIS in marine is discussed.展开更多
In the art design field, CG technique has been applied in many aspects like third dimension graphical display, human-computer interaction, virtual reality, three-dimensional cartoon and so on. In the meanwhile, the ap...In the art design field, CG technique has been applied in many aspects like third dimension graphical display, human-computer interaction, virtual reality, three-dimensional cartoon and so on. In the meanwhile, the applications reflected in art design was appeared in computer assisted convey design, bothway or multi-ways interactive convey design and multimedia convey design. Computer assisted convey design included the application of the most CG technique in visual. Interactive convey design reflected interaction, which was the most obvious character of CG. However, multimedia convey design was used not only in CG technique, but also in digital media techniaue.展开更多
文摘“屏幕上出现闪烁”这个现象,许多人都以为是自己显示器的问题或是显示卡没有调试好的缘故,作为长期从事计算机图形显示卡研究人员,我想说这些想法是对的,但大家没有发现“闪烁”的根本问题。这根本问题就在于您使用的是早些时候的老式显存的显示卡,或现在叫图形卡。而这些显示卡已不再适应当今显示器的高分辨率和高刷新率的要求了。因为这些早期插在计算机内的显示卡,使用的都是标准DRAM数据存储器.英文叫FPMDRAM(RAM for Fast-Page Mode),中文是“动态随机存储器”,它和多数计算机上的主要系统RAM使用的是同一技术。它的“动态”的含义是指这种存储器必须每分钟被刷新好几次,否则它就会“遗忘”其存储的数据。这就是说DRAM有一个运行周期:一段时间内,由于存储器正被刷新,因此不能回应外部命令。
文摘An efficient voxelization algorithm is presented for polygonal models by using the hardware support for the 2 D rasterization algorithm and the GPU programmable function to satisfy the volumetric display system. The volume is sampled into slices by the rendering hardware and then slices are rasterated into a series of voxels. A composed buffer is used to record encoded voxels of the target volume to reduce the graphic memory requirement. In the algorithm, dynamic vertexes and index buffers are used to improve the voxelization efficiency. Experimental results show that the algorithm is efficient for a true 3-D display system.
文摘This paper introduces the most advanced form of electronic chart display and information systems (ECDIS) which complies with the Performance Standards for ECDIS established by the International Maritime Organization (IMO) and the International Hydrographic Organization (IHO).It also describes the key features and the important functions of ECDIS.Then the future development of ECDIS in marine is discussed.
文摘In the art design field, CG technique has been applied in many aspects like third dimension graphical display, human-computer interaction, virtual reality, three-dimensional cartoon and so on. In the meanwhile, the applications reflected in art design was appeared in computer assisted convey design, bothway or multi-ways interactive convey design and multimedia convey design. Computer assisted convey design included the application of the most CG technique in visual. Interactive convey design reflected interaction, which was the most obvious character of CG. However, multimedia convey design was used not only in CG technique, but also in digital media techniaue.
