#!F-adobe-helvetica-medium-r-normal--18* #!N #!N #!Rhardren Rendering Approximations #!N #!N #!N Data Explorer provides access to the hardware accelerators on the workstation, in addition to the default software rendering techniques. The hardware enhancements are available only on workstations that are equipped with 3-D graphic adapters. On systems without such adapters, only the software rendering options are available. This enhancement is intended to provide increased interactivity, especially in operations that involve only the rendering process. #!N #!N Data Explorer can also provide accelerated rendering by approximating the rendering using points, lines, and opaque surfaces. Such geometric elements are often sufficient to approximate the appearance of the desired image, and thus are useful for preliminary visualizations of the data. #!N #!N The approximations fall into three main categories: bounding box, dots, and wireframe. Wireframe is available only as a hardware rendering technique. #!N #!N If you are using the graphical user interface and the Image tool, you can access the rendering options by using the #!F-adobe-times-bold-r-normal--18* Rendering Options #!EF option on the #!F-adobe-times-bold-r-normal--18* Options #!EF pull-down menu in the Image window. This option invokes a dialog box that allows you to set the rendering approximations for continuous and one-time execution. (For more information, see #!Lglopt,dxall327 h Rendering Options... #!EL in IBM Visualization Data Explorer User's Guide.) #!N #!N If you are not using the Image tool, then you must use the Options module to set various attributes that control the rendering approximations. The following table lists the attributes that control rendering approximations, together with the permissible values for each attribute. #!T,1,216,356,641 #!F-adobe-times-bold-r-normal--18* #!N TAB Attribute Name TAB Values TAB Description #!EF #!N TAB "rendering mode" TAB "software" TAB use software rendering #!N TAB - TAB "hardware" TAB use hardware rendering #!N TAB "rendering approximation" TAB "none" "box" "dots" TAB complete rendering object #!N TAB - TAB "wireframe" TAB bounding box only #!N TAB - TAB - TAB dot approximation to object #!N TAB - TAB - TAB wireframe approximation to object #!N TAB "render every" TAB n TAB render every nth primitive #!N TAB - TAB - TAB render everything (default) Note: If you do not pass a camera to Display (i.e., if #!F-adobe-times-bold-r-normal--18* object #!EF is already an image), Display will always use software to display the image, regardless of the setting of any rendering options using the Options tool. #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lhardsof,dxall825 h Differences between Hardware and Software Rendering #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
Generated by dwww version 1.15 on Sat Jun 22 12:50:57 CEST 2024.