NCSA  CAVERNUS

Virtual Visible Female

download app here!

Created by Randy Hudson, University of Chicago and Argonne National Laboratory
The Virtual Visible Female is a volume-rendering of the visible female data set from the National Institutes of Health. This app runs only on the ImmersaDesk and requires either an RE or an IR ONYX, running IRIX 6.2 operating system.

Controls:

Button3 displays a menu and selects sub-menus and menu items. Selecting a menu item causes the menu to disappear. Selecting the main menu title bar takes you out of menu mode; selecting the title bar of a submenu brings up its parent menu; clicking button3 while the green cone (the menu pointer) is off-menu will again take you out of menu mode.

Button2 will then activate the menu selection. (Depending on the menu item selected, button2 either acts as a toggle -- meaning it must be pressed for a moment, then released -- or must be held down while making the change selected from the menu. If you're getting a slow frame rate, it won't work as a toggle unless you hold it down long enough.)

    Example:
    To rotate the data volume,
    1- press button3 to bring up the main menu
    2- move the wand to highlight the "move model" sub-menu
    3- press button3 to select that sub-menu
    4- move the wand to highlight the "rotate" menu item
    5- press button 3 to select that menu item
    The menu disappears and button2 can now be held down to rotate the object.
Some functions that the user can perform are:

    - Display different views such as skin, muscle and bone.
    - The texture lookup tables R, G, B and A can be changed.
    - Sub-sets of data values can be isolated for display.
.examplerc:
The .examplerc file allows the user to volume render many different data files with the same binary. The user can specify parameters such as the x,y,z voxel resolution, x,y,z spatial extent (length), voxel data type, among other things.

The most important parameter is the amount of texture memory. If the user doesn't specify that, the program will try to figure it out. The number of megs of texture memory is specified as 

		
    tex_megs (number of megs)
Any blank line in the .examplerc file is ignored, as is any line beginning with a '#'. Every parameter consists of a keyword followed by a value. Any text after the value is ignored. The following parameters are required: 
		
    minor_res  
    middle_res 
    major_res  
    res_factor 
    minor_extent 
    middle_extent
    major_extent 
    elem_type    
    movie_sw     
    smallfile_sw
The following parameters are required if you're using a small version of the data file for fast interaction, as in the visible female app: 
    small_minor_res  
    small_middle_res 
    small_major_res  
    small_minor_extent  
    small_middle_extent 
    small_major_extent
If a parameter keyword is used, it must be followed by a valid value.

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NCSA
The National Center for Supercomputing Applications
University of Illinois at Urbana-Champaign

tcoffin@ncsa.uiuc.edu

Last modified: January 23, 1998