An approach for generating interactive 3D graphical visualization of the genetic architectures of complex traits in multiple environments is described. 3D graphical visualization is utilized for making improvements on...An approach for generating interactive 3D graphical visualization of the genetic architectures of complex traits in multiple environments is described. 3D graphical visualization is utilized for making improvements on traditional plots in quan- titative trait locus (QTL) mapping analysis. Interactive 3D graphical visualization for abstract expression of QTL, epistasis and their environmental interactions for experimental populations was developed in framework of user-friendly software QTLNetwork (http://ibi.zju.edu.cn/software/qtlnetwork). Novel definition of graphical meta system and computation of virtual coordinates are used to achieve explicit but meaningful visualization. Interactive 3D graphical visualization for QTL analysis provides geneticists and breeders a powerful and easy-to-use tool to analyze and publish their research results.展开更多
This paper studies some programming techniques for low power rendering for 3 D graphics. These techniques are derived from analysis and simulation results of hardware circuits of GPU. Although low power3 D graphics ha...This paper studies some programming techniques for low power rendering for 3 D graphics. These techniques are derived from analysis and simulation results of hardware circuits of GPU. Although low power3 D graphics hardware design has been studied by other researchers,low power programming techniques from hardware perspective have not been investigated in depth. There are many factors that affect 3 D graphics rendering performance,such as the number of vertices,vertex sharing,level of details,texture mapping,and rendering algorithms. An analytical study of graphics rendering workload is performed and the effect of a number of programming tips such as vertex sharing,clock gating and buffering of unmoving or translational objects is deeply studied. The results presented in this paper can be used to guide 3 D graphics programming for optimizing both power consumption and performance.展开更多
This paper describes a framework for visualizing object-oriented systems within a 3D interactive environment. The 3D visualizer represents the structure of a program as Cylinder Net that simultaneously specifies two r...This paper describes a framework for visualizing object-oriented systems within a 3D interactive environment. The 3D visualizer represents the structure of a program as Cylinder Net that simultaneously specifies two relationships between objects within 3D virtual space. Additionally it represents additional relationships on demand when objects are moved into local focus. The 3D visualizer is implemented using a 3D graphics toolkit, TOAST, that implements 3D widgets and 3D graphics to ease the programming task for 3D visualization.展开更多
Based on computer graphics principle, technology and 3D graphics software, this paper deals with the 3D part design, assembly and animation of shearer in longwall integrated mechanized coal mining. The matixes of kine...Based on computer graphics principle, technology and 3D graphics software, this paper deals with the 3D part design, assembly and animation of shearer in longwall integrated mechanized coal mining. The matixes of kinetic and geometry relationships and 3 dimension space coordinate systems are built for the cut drums, arms and shearer body. The methods of 3D modeling, dynamic simulation and relative technique problems are discussed.展开更多
传统的三维图形处理器通过裁剪操作获取三角形的可见区域。然而,裁剪操作的延迟长且硬件开销高,大量的裁剪操作会降低图形处理器的性能。本文设计了一款基于OpenGL ES 2.0标准的三维图形处理器芯片,采用了统一渲染架构。该图形处理器采...传统的三维图形处理器通过裁剪操作获取三角形的可见区域。然而,裁剪操作的延迟长且硬件开销高,大量的裁剪操作会降低图形处理器的性能。本文设计了一款基于OpenGL ES 2.0标准的三维图形处理器芯片,采用了统一渲染架构。该图形处理器采用高效的无裁剪图形流水线结构,消除了裁剪所带来的硬件开销和性能损耗。此外,本文为该图形处理器设计了一个符合IEEE-754标准的三维向量内积(DP3)计算单元,用于固定功能流水线,以提高图形处理器的性能,并消除图形渲染过程中浮点乘加操作的误差,增强了图形处理器的图形渲染鲁棒性。该三维图形处理器每秒能够处理500 M个顶点和8 G个纹素,功耗为1000 mW,采用了28 nm工艺,面积为7.92 mm^(2)。实现结果表明,与之前的工作相比,本文设计的图形处理器的性能-功耗比提高了27.8%。展开更多
基金Project supported by the National Natural Science Foundation of China (Nos. 60473106, 60273060 and 60333010)and the Ph.D. Programs Foundation of Ministry of Education,China (Nos.20030335064 and 20060335114 )
文摘An approach for generating interactive 3D graphical visualization of the genetic architectures of complex traits in multiple environments is described. 3D graphical visualization is utilized for making improvements on traditional plots in quan- titative trait locus (QTL) mapping analysis. Interactive 3D graphical visualization for abstract expression of QTL, epistasis and their environmental interactions for experimental populations was developed in framework of user-friendly software QTLNetwork (http://ibi.zju.edu.cn/software/qtlnetwork). Novel definition of graphical meta system and computation of virtual coordinates are used to achieve explicit but meaningful visualization. Interactive 3D graphical visualization for QTL analysis provides geneticists and breeders a powerful and easy-to-use tool to analyze and publish their research results.
基金Sponsored by the Key Program of National Natural Science Foundation of China(Grant No61136002)the Research Grants from the Shaanxi Provincial Government(Grant Nos.2013KTZB01-07,2014ZS-08 and S2015TQGY0166)the Shaanxi Education Bureau(Grant No.2050205)
文摘This paper studies some programming techniques for low power rendering for 3 D graphics. These techniques are derived from analysis and simulation results of hardware circuits of GPU. Although low power3 D graphics hardware design has been studied by other researchers,low power programming techniques from hardware perspective have not been investigated in depth. There are many factors that affect 3 D graphics rendering performance,such as the number of vertices,vertex sharing,level of details,texture mapping,and rendering algorithms. An analytical study of graphics rendering workload is performed and the effect of a number of programming tips such as vertex sharing,clock gating and buffering of unmoving or translational objects is deeply studied. The results presented in this paper can be used to guide 3 D graphics programming for optimizing both power consumption and performance.
文摘This paper describes a framework for visualizing object-oriented systems within a 3D interactive environment. The 3D visualizer represents the structure of a program as Cylinder Net that simultaneously specifies two relationships between objects within 3D virtual space. Additionally it represents additional relationships on demand when objects are moved into local focus. The 3D visualizer is implemented using a 3D graphics toolkit, TOAST, that implements 3D widgets and 3D graphics to ease the programming task for 3D visualization.
文摘Based on computer graphics principle, technology and 3D graphics software, this paper deals with the 3D part design, assembly and animation of shearer in longwall integrated mechanized coal mining. The matixes of kinetic and geometry relationships and 3 dimension space coordinate systems are built for the cut drums, arms and shearer body. The methods of 3D modeling, dynamic simulation and relative technique problems are discussed.
