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******************************* AUTODESK ADI 4.2 ******************************
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The Aquila driver is a professional quality PADI (Protected mode Autodesk 
Driver Interface) combined display and rendering device driver to be used with
AutoCAD Release 11/12, 3D Studio 1.0/2.0, and AutoShade 2.1.

Features
--------
-  Protected mode operation, PADI 4.2 specification
-  32 bit display list for "no regen" operation
-  Display list operation with 16 active viewports, including paperspace 
   viewports
-  Birds-Eye and Edge-Pan features for convenient zooms and pans
-  Partial redraws on overlapping viewports
-  Redraw list for maximum redraw speed with Release 11
-  Intelligent clean-up (Erase Buffer(TM)) to eliminate "flashing"
-  Display list memory meter
-  AutoCAD memory usage statistics
-  Paging-Alarm -- disables display list usage when paging become excessive
-  Reliable dual screen operation
-  Variable font support -- allows fonts up to 16 by 30 in size
-  International font support
-  User configurable screen colors
-  15 and 16 bit "Band-Free" Rendering support
-  24 and 32 bit Rendering support
-  Text screen emulation window for Release 12

Installation
------------
1.  Create a directory on your hard drive for the Aquila files by entering

        md \aquila

2.  EXPAND.EXE is a program supplied with Microsoft Windows, and should reside
    in your Windows directory. Ensure that EXPAND.EXE is on your PATH, then
    expand all files from the \ADI42 subdirectory on the 928Movie DOS Drivers
    disk to the aquila subdirectory, e.g., 

        expand -r a:\ADI42\*.* c:\aquila

    Replace "a:" and "c:" with the drive letters of your choice. Ensure that
    you use the -r option, otherwise you will be prompted for each filename
    individually.

Basic Configuration
-------------------
1.  Add the following 3 lines to your AUTOEXEC.BAT:

        Set dspadi=c:\aquila\rcp_s3.exp
        Set rcpadi=%DSPADI%
        set rdpadi=%DSPADI%

    This will cover all Autodesk applications except AutoCAD Release 12. 

2.  Refer to your application's Installation and Performance Guide for 
    information about other environment variables, configuring other 
    non-display device drivers and system configurations that are necessary 
    to optimize the performance of your application.

3.  Aquila will detect the Autodesk application that it is being configured 
    for and will provide correct display driver defaults for your applications.
    By accepting the default parameters, your driver will be configured 
    correctly. This will work with AutoCAD, AutoShade, or 3D Studio.

Font Configuration for AutoCAD and AutoShade
--------------------------------------------
1.  This driver will use the 8-bit international font in the VGA BIOS (8x16) 
    or, if present, an Aquila optional font file. Font files are available in
    sizes up to 16 x 30. The README file lists available font files and a 
    brief description of each.

2.  The driver searches for the file AQUILA.FNT in the current directory. If 
    not found, it searches for the file specified in the DOS environment
    variable AQUILA_FONT. For example,

        set aquila_font=c:\aquila\9x15.fnt

    If the font file is readable, it will be used; otherwise Aquila will 
    borrow font data from the VGA BIOS.

3.  Please note that font files can only be used with AutoCAD and AutoShade,
    while 3D Studio will only use the internal 8x16 VGA font. If Aquila font
    files are used with 3D Studio, characters such as arrowheads may look 
    strange or different. If you are using AutoCAD and 3DStudio on the same 
    system, you may want to disable an active Aquila font before entering 
    3DStudio by entering 

        SET AQUILA_FONT=

AutoCAD Release 11 Configuration
--------------------------------
1.  Set the environment variables as described above under Basic Configuration.

2.  Set the font variable as described above under Font Configuration.
    Rerun your batch files if needed to initialize the variables.

3.  Start AutoCAD by moving to the \ACAD directory and typing ACAD.

4.  If AutoCAD has not yet been configured or your acad.cfg has been deleted, 
    skip to 6, below.  Otherwise, select option #5 "Configure AutoCAD".

5.  Select option #3 "Configure video display".

6.  Select option #1 "ADI P386 v4.0/4.1 display" which will display the Aquila
    configuration menu.

7.  Choose 1 to select a display resolution mode. If your system is capable of
    dual monitor operation, you will be asked if you wish to use this option.
    Option 1 is the only display driver option that must be set before using 
    AutoCAD 11. For options 2 through 9, you may accept the pre-set defaults 
    by choosing 0 to exit the Aquila configuration menu, or adjust them as 
    follows for a customized display configuration. Details regarding these 
    custom Aquila display list options are provided later in this document.

8.  Choose 2 to activate the color menu to customize colors used for the 
    AutoCAD graphics screen.

9.  Choose 3 to disable the Graphics Flip-screen. This feature is available for
    Release 12 only.

10. Choose 4 to disable or adjust the Display List memory management options.

11. Choose 5 to disable or adjust the Erase-buffer size (default is enabled for
    "flash-less" redrawing during editing).

12. Choose 6 to enable or adjust the sensitivity setting for the Page-Alarm 
    (default is off).

13. Choose 7 to adjust or enable the Edge-pan option (default is off).

14. Choose 8 to disable or change the size of the Birds-eye (default is 25% of 
    the total screen size).

15. Choose 9 to configure the digitizer or mouse button to use for entering 
    commands. The default is the transparent Birds-eye command "'AQBIRD", as 
    the recommended double-click command. This will allow you to bring up the 
    Birds-eye anywhere on the graphics screen while in the middle of an AutoCAD
    command.

16. Exit the Video Display Configuration menu.

17. Configure pointer, printer and plotter as needed.

18. Return to the main AutoCAD menu, saving the configuration results

AutoCAD Release 12 Configuration
--------------------------------
AutoCAD Release 12 uses a method of locating device drivers that is very
different to Release 11. Release 12 will search directories for device files,
ignoring the DSPADI= environment variable. If you are installing or 
configuring Release 12 for the first time, please pay careful attention to the
following setup instructions.

1.  Set the environment variable in both the ACADR12.BAT and AUTOEXEC.BAT files
    as follows:

    set ACADDRV=C:\AQUILA;C:\ACAD\DRV

2.  Set the font variable as described above under Font Configuration. Rerun 
    your batch files if needed to initialize the environment variables.

3.  Start AutoCAD by moving to the \ACAD directory. Enter ACAD if you are 
    configuring for the first time or ACAD -R if you are reconfiguring and 
    select item #3 to activate the Video Display driver menu.

4.  From the available display drivers, select "S3 ADI v4.2 Display and 
    Rendering by ATC Graphics".

5.  Choose 1 to display the list of available resolutions. Select the AutoCAD
    S3 Display resolution mode you want. If your system is capable of dual 
    monitor operation, you will next be asked if you wish to use this option.

Option 1 is the only option that must be selected before using AutoCAD 12. For
options 2 through 9, you may accept the preset defaults by choosing 0 to exit
the Aquila configuration menu, or adjust them for a customized display 
configuration. Details regarding the special Aquila display list features are
provided later in this document.

6.  Choose 2 to start the color menu to customize colors used for the AutoCAD 
    graphics screen.

7.  Choose 3 to enable or disable the "Flip-screen" feature (default is on for
    Release 12). Flip-screen is automatically disabled if you selected dual 
    monitor operation.

8.  Choose 4 to disable or adjust the Display List memory management options.

9.  Choose 5 to disable the Erase-buffer size (default is enabled for 
    "flash-less" redrawing during editing).

10. Choose 6 to enable or adjust the sensitivity setting for the Page-Alarm 
    (default is off).

11. Choose 7 to enable or adjust the Edge-Pan feature. (Default is off.)

12. Choose 8 to disable or change the size of the Birds-Eye (default is 25% of
    the total screen size).

13. Choose 9 to configure the digitizer or mouse button to use for double-click
    entering of your selected command. The default  is the recommended 
    transparent Birds-eye command "'AQBIRD", as this will allow you to bring 
    up the Birds-eye anywhere on the graphics screen while in the middle of an
    AutoCAD command.

14. Exit the Aquila Display configuration menu and the Video Display
    configuration menu.

15. Configure pointer (mouse or tablet), printer and plotter as needed.

16. Return to the main menu and save the configuration results.

AutoCAD 12 AVE Configuration
----------------------------
The Aquila driver is a combined display and rendering device driver and
supports 15, 16, 24 and 32 bit rendering within AutoCAD. AutoCAD's AVE 
Rendering must be configured for the Aquila driver.

1.  If you are reconfiguring AutoCAD, delete your current AVE.CFG file.

2.  Once in AutoCAD, either type RCONFIG at the AutoCAD Command prompt, or
    select from the pulldown menus, RENDER/PREFERENCES/Reconfigure. 

3.  When you configure the rendering driver for AutoCAD Render, select 
    option 1, AutoCAD's configured P386 combined display/rendering driver.
    (Do not select option 2).

4.  Select the S3 Rendering resolution you want from the menu list of 
    available resolutions supported by your system. Your selection must be
    compatible with any limitations related to your current AutoCAD display
    configuration.   

    -  All resolutions listed will work when rendering to a full-screen with 
       a single monitor system. 

    -  With a dual-monitor configuration, select rendering to a viewport
       (because currently AutoCAD 12c2 does not return properly from rendering
       to a separate screen).

    -  If your AutoCAD display resolution is set to any 16-color resolution,
       then you must render to the full screen instead of a viewport. Any 
       resolution may be selected.

    -  If your AutoCAD display resolution is set to any 256-color resolution
       and you plan to render to a 256-color viewport, select the same 
       resolution for your display and renderings. When rendering to a 
       viewport, AutoCAD's display driver controls the rendering resolution.

5.  Select whether you wish to render to a viewport or a full screen (see 4 
    above for limitations).  

6.  Configure any hardcopy device as needed.

7.  Exit the configuration menu and save your changes.

AutoShade 2.1 Configuration
---------------------------
1.  Install the Aquila files as described under installation. Set the 
    environment and font variables as described above under Basic and Font 
    Configuration. Rerun your batch file if needed to initialize your 
    environment  variables.

2.  Start AutoShade 2.1, with the reconfiguration command SHADE /R.

3.  Select the correct pointing device.

4.  Select option #2 "P386 Autodesk Device Interface display driver".

5.  Choose option #1 to activate the list of display resolution modes for the 
    interactive screen.  Select one.

6.  Choose option #2 to activate the Color menu and select colors to use for 
    Menus, Pop-ups, Background, etc.

7.  Save and exit the colors menu.

8.  Select option #2 "P386 Autodesk Device Interface rendering driver".

9.  Choose a resolution mode for the rendering (shading and RenderMan) screen.

10. If you select the 32K or 64K color modes, you will be asked if you wish 
    to enable "Band-Free" mode which allows the best color quality possible in
    a 15 or 16 bit device. Select Low, Medium or High.

11. Answer the next 3 questions with a "YES", since only one screen is used, 
    and must be redrawn upon switching.

12. Select a hard copy device option.

13. Configuration is complete and the interactive screen is displayed.

3D Studio 1.0 Configuration
---------------------------
Verify that the environment variables listed under Basic Configuration, above,
are initialized before proceeding with your 3D Studio configuration.

1.  Go to your 3D Studio 1.0 subdirectory, e.g.,\3DS, and edit the 3DS.SET 
    file.

2.  Change the line that starts with DEFAULT-DISPLAY = "VGA320X200" to read 
    DEFAULT-DISPLAY = "RCPADI".

3.  Change the line that begins with MAIN-DISPLAY = to read 
    MAIN-DISPLAY = RCPADI. Delete any leading semicolon (;) that may be 
    present.

4.  Change the line that begins with MATERIAL-DISPLAY = VGA320X200 to read 
    MATERIAL-DISPLAY = RCPADI.

5.  Save the file and exit the editor.

6.  Delete the file 3DADI.CFG, if present.

7.  Start 3D Studio with the command 3DS.

8.  Select a 256-color resolution for the Main display. This is the mode that
    will be used for the 2D Shaper, 3D Lofter, 3D Editor, and Keyframer.

9.  Select a 256-color resolution for the Materials Editor. Use of a 
    resolution greater than 640 x 480 will not increase the usefulness of the
    Materials Editor at all.

10. You should now find yourself inside the 3D Editor of 3D Studio. 

11. The first time that you try to render a drawing or view an image, you will
    be asked to select a resolution for Rendering. If you select the 32K or 
    64K color modes, you will be asked if you wish to enable "Band-Free" mode.
    This allows the best color quality possible in a 15- or 16-bit device.
    Select Low, Medium or High. Configuration is now complete.

3D Studio 2.0 Configuration
---------------------------
Verify that the environment variables listed under Basic Configuration, above,
are initialized before proceeding with your 3D Studio configuration.

1.  Go to your 3D Studio 2.0 subdirectory, e.g., the \3DS directory, and edit
    the file 3DS.SET file.

2.  Change the line that starts with DEFAULT-DISPLAY = VGA320X200 to read 
    DEFAULT-DISPLAY = RCPADI.

3.  Change the line that begins with MAIN-DISPLAY = to read 
    MAIN-DISPLAY = RCPADI. Delete any leading semicolon (;) that may be
    present.

4.  Change the line that begins with MATERIAL-DISPLAY = VGA320X200 to read 
    MATERIAL-DISPLAY = RCPADI.

5.  Save the file and exit the editor.

6.  Delete the file 3DADI.CFG, if present.

7.  Start 3D Studio with the command 3DS. Answer Y to the question about 
    having a VGA or SVGA.

8.  Select a 256-color resolution mode for the "ADI main display". This is the
    mode that will be used for the 2D Shaper, 3D Lofter, 3D Editor, and 
    Keyframer. 

9.  Select a 256-color resolution for the "ADI MEDIT", Materials Editor. Use 
    of a resolution greater than 640 x 480 will not increase the usefulness of
    the Materials Editor at all.

10. Answer N to the question about "Will RDPADI render to a separate screen?".

11. Select a resolution mode for the Rendering "RDPADI" Device. If you select
    the 32K or 64K color modes, you will be asked if you wish to enable 
    "Band-Free" mode. This allows the best color quality possible in a 15 or 
    16 bit device. Select Low, Medium or High. (This rendering mode is not 
    activated in a single monitor system.)

12. Answer the question about "Will RCPADI render to a separate screen?". If 
    using Aquila for an 8514/A, the answer is "yes", for all others, the 
    answer is "no".

13. Select a resolution mode for the Rendering "RCPADI" Device. If you select
    the 32K or 64K color modes, you will be asked if you wish to enable 
    "Band-Free" mode. This allows the best color quality possible in a 15 or
    16 bit device. Select Low, Medium or High.

14. Configuration is now complete.

Aquila Display List and Special Features for AutoCAD
----------------------------------------------------
AutoCAD Screen Layout
---------------------
-   Current Color Display - The rectangle in the top left of the screen 
    displays the current drawing color.

-   Logo - The manufacturer's logo is displayed near the lower right corner of
    the screen.

-   Display Status Area - This area is located below the Logo Area and is 
    present only when the display list has been enabled.  It contains three 
    lines of text as follows:

    -  System Memory Status - The topmost line of text in the Display Status 
       Area provides a percentage of total system memory that is being used
       by AutoCAD. AutoCAD may start to slow down when this amount exceeds
       100%. After this figure exceeds 150%, "paging" will occur.

    -  Display/Screen Lists Memory Status - The middle line of text indicates
       memory usage by the Aquila display list and screen list.

       numberK   indicates amount of memory currently used by display list

       Empty     indicatesthere is no drawing in memory, anew drawing, this
                 line 

       Overflow  indicates the memory required by the display list exceeds
                 available display list memory

       Disabled  indicates that the display list has been disabled because
                 excessive paging has occurred

    -  Display List Status - The third or lowest line of the Display Status Area
       lists abbreviations to indicate the current status of display list 
       features. Key letters are present only when the display list is enabled.

       D  32 bit display list data is in use.
       d  16 bit display list data has been selected.
       Z  Zooming from the display list is allowed. 
       z  Pspace and perspective zooms by AutoCAD. Birds-eye will not work in 
          viewport.
       S  Redraw list is enabled.
       s  Redraw list is turned off.
       P  Page alarm enabled and paging occurred recently.
       p  Page alarm enabled and no paging has occurred.
       E  Edge-pan enabled. Edge pan is impending.
       e  Edge-pan enabled but none impending.

Display List Memory Management Configuration for AutoCAD 11 and 12
------------------------------------------------------------------
This section covers the configuration of the Aquila display list memory 
management features for AutoCAD available under option #4 of Aquila's AutoCAD
display configuration menu. Please pay careful attention to the information
presented here, since this will affect the performance of Aquila under AutoCAD.
Some experimentation will be necessary in order to make Aquila work optimally
for your particular environment and needs. 

1.  While configuring, you must choose a method of memory management for the 
    display list information. Which method you use will depend upon the type
    and number of drawings you work with during an AutoCAD session. 

    -  Dynamic - Memory keeps on growing as it is needed. This requires the
       least amount of operator interaction, and is the most carefree.

    -  Static - Memory is a fixed amount that you will specify. When the
       display list grows bigger than memory limits, the display list will
       be shut off. The static option is a little bit faster, but requires
       a knowledge of how much memory your drawings will consume.

2.  The first option available in the Display List memory management submenu 
    is "Enable Display List?". Answering "No" will end the display list
    configuration choices.

3.  If you are configuring for Release 12, you will next be asked "Enable 32 
    bit regens?"  Enabling this feature will greatly reduce regens,  thereby 
    providing faster operation. The down side of this choice is that Aquila 
    will use more memory for the display list.

4.  Next you will be asked to select a memory management scheme, "Dynamic 
    dlist (automatic)?" 

    -  Answering "Yes" will select the dynamic scheme. You would then be 
       prompted to select a performance level, "Miserly (1), Normal (2) or 
       High Performance (3)". If you have very little memory in your machine 
       then select Miserly.  If your have lots of memory, select High 
       Performance. All others select Normal. 

    -  Answering "No" will select the static management scheme. You would then
       be asked to provide a memory size to use. If this is the first time it 
       is being configured, Aquila will make a suggestion based upon the 
       amount of memory in your system.

5.  If you are configuring for Release 11, you will be asked if you wish to 
    "Enable redraw list?"  Answering "Yes" allows you to enable a faster 
    redraw method. This will consume some additional memory, but it does 
    improve redraw speeds. If you selected "Static" memory management earlier,
    then you will be asked to select a memory size for the redraw list. 
    Usually this can be 1/2 to 1/4 of the amount you specified for display 
    list usage.

Display List Feature Configuration for AutoCAD 11 and 12
--------------------------------------------------------
This section covers the configuration of the Aquila display list features 
available under options #3 and #5 through #9 of the Aquila display 
configuration menu for AutoCAD.
  
  Graphics Flip-screen (Option #3) 
  --------------------------------
  If enabled, the AutoCAD text screen will appear in the center of the
  graphics screen. This eliminates the mode switching delay common to most
  multi-frequency monitors. When enabled the graphics Flip-screen will
  emulate the VGA text window. Use the F1 key to toggle between modes. If
  you wish to execute any DOS commands, Aquila will switch the screen to a
  full-screen text mode allowing for full DOS compatibility. 
  
  If you are using an after-market TSR product that pops up into the screen
  during AutoCAD sessions (calculator, plot spooler, etc.) or you wish to use
  the Print-screen function while in the text screen, then you should not use
  this option. Flip-screen is automatically disabled for dual monitor
  operation.
  
  Erase buffer (Option #5) 
  ------------------------
  Answering Yes to "Enable erase buffer?" brings up a second question "Erase 
  buffer size?". This will determine the number of erased objects it takes 
  before Aquila will start an automatic "cleaning" cycle to remove them from
  the display list. Select a higher value if you plan on doing much large
  drawing editing. The erase buffer can also be disabled, enabled and resized
  from within AutoCAD by typing "AQEBUF=0" at the command prompt to disable
  and "AQEBUF=xx" to enable or resize, where xx is the new size.
  
  When AutoCAD erases objects from the drawing database, it erases them from
  the screen as well. Sometimes this action causes other objects to appear
  erased as well. The "redraw" command has no effect, but a "regen" causes
  the objects to appear correctly. This problem can be solved by using the
  erase buffer to correct the display corruption that occurs when objects are
  erased from the drawing. Normally, AutoCAD will request that the driver
  erase a line from the screen by drawing it in black. This causes the erased
  object to flash on and off the screen during redraws.
  
  Another side effect is that objects near the erased one may appear to be
  incomplete. To correct this in the fastest manner possible, Aquila will keep
  a list of erased vectors, and erase them only when the buffer fills. This
  speeds up block erasures considerably. The custom command, AQCLN, discussed
  below, can also be used to clear the erase buffer.
  
  There are certain after market software packages for AutoCAD, such as CAD 
  Overlay, which rely upon the ability to draw objects in black (background 
  color). If you are using one of these packages and the screen images appear 
  distorted, then you need to disable the erase buffer.
  
  Paging Alarm (Option #6)
  ------------------------
  Answering "Yes" to "Enable Page-Alarm?" will bring up a second prompt about
  the sensitivity setting for the Page-Alarm.
  
  When AutoCAD's memory requirements exceed the amount of physical memory 
  available in your machine, it begins "paging" in order to gain extra memory.
  Paging means that certain memory areas are traded back and forth with a
  "swap file" on the hard drive. Due to the difference in access speed between
  main memory, and this "virtual" memory that is on the hard drive, AutoCAD
  begins to slow down, often to the point of being unusable. To combat this,
  memory is used very sparingly, and only when absolutely necessary. As a
  second line of defense against paging, when the amount of memory paged out
  to disk exceeds several preset thresholds, Aquila begins shutting down extra
  functions, and returns the memory to AutoCAD.
  
  When paging activity exceeds the first threshold, the screen-list feature is
  disabled and all associated memory is returned to AutoCAD. At this point,
  the screen list status line, the lowest line, will disappear from the status
  window. Should paging activity continue, Aquila will disable the display
  list feature and return all of that memory to AutoCAD. When that has been
  done, the middle line of text in the status area will say "Disabled", to
  indicate that all display list functionality has been terminated. The driver
  will continue to function as normal, but redraws will be slower. However,
  AutoCAD itself will now be much faster than it was when the paging was
  occurring. This allows you to complete your drawing session in much less
  time.
  
  Edge Pan (Option #7)
  --------------------
  Edge-pan is used to move around while zoomed into a drawing. By leaving the
  cursor near the border of the currently active viewport, Aquila will
  automatically begin to pan in that direction. This only begins if the cursor
  is left idle for a predetermined length of time. The default is Edge-pan
  disabled.
  
  Experimentation with the Edge-pan settings will yield the best results for
  your needs. There are nine custom Edge-pan commands provided with the Aquila
  driver. Edge-pan settings may be adjusted either in the configuration menu
  or within AutoCAD by typing at the command prompt "AQEPAN ON" or "AQEPAN
  OFF". Please refer to the list of custom Aquila commands given below for
  additional custom Edge Pan commands.
  
  Birds-eye View (Option #8 & 9)
  ------------------------------
  The Birds-eye feature allows fast transparent zooms and pans. The Birds-eye
  can be activated either by typing "'AQBIRD" or by double-clicking on the
  mouse or digitizer button specified during configuration.
  
  When activated, the Birds-eye window will appear under the current cursor
  location. The window will show a small overall view of the drawing that 
  AutoCAD has currently placed in Aquila's display list. Within the Birds-eye
  window a highlighted rectangle indicates the currently viewed area, and an
  outline rectangle indicates the area that will be shown if a Birds-eye zoom
  is completed. If this rectangle contains an "X" in the middle, then the 
  Birds-eye is in pan mode. If this rectangle contains an arrow, then the 
  Birds-eye is in zoom mode.
  
  Pressing the pick button on your mouse or digitizer (usually the left button
  for a mouse) allows you to toggle between zoom and pan modes in the Birds-
  eye window. Pressing the selection button on your digitizer causes the 
  Birds-eye to disappear and the selected view to be used in the currently
  active viewport. A new zoom will be executed if necessary. Moving the cursor
  outside the Birds-eye window without making a selection will cancel the
  function. This Birds-eye will work in multiple viewport drawings, and will
  appear in the  aspect ratio of the currently active viewport.
  
  The Birds-eye can be resized at any time during an AutoCAD session by typing
  "AQBESZ=xx", where xx is any number between 10 and 50 and represents the
  percentage of the graphics screen size for the new Birds-eye size. The image
  inside the Birds-eye when it is activated can be manipulated without causing
  a "regen" in Release 12 by using the "AQZWI" command. By performing a "ZOOM
  ALL" followed by an "AQZWI" , you will be able to zoom in and out of your
  drawing as much as possible without causing further regens.
  
  Band-Free Rendering
  -------------------
  When using the 15 or 16 bit rendering modes, often times the images appear
  "banded". This banding or staircasing occurs most often on objects with
  large sloping or gently curving surfaces. Band-Free rendering improves the
  image quality in these modes.
  
  The "Band-Free" effect can be controlled as well. It may be set to "Low",
  "Medium", or "High", depending upon how much of the banding you want to
  eliminate. This feature will be of limited use to users of AutoShade, but
  is beneficial to users of Autodesk RenderMan and 3D Studio.
  
  Custom Aquila Commands for AutoCAD
  ----------------------------------
  Aquila provides a number of custom commands which provide status information
  about memory usage for the Display list. Additional commands enable the user
  to reset or redefine Aquila Edge-pan and Birds-eye features from within 
  AutoCAD. Below is a summary of the custom Aquila commands.
  
  AQHLP          The help screen function displays a list of all the driver
                 local commands, and gives a brief description of each. This
                 command is best executed from the text or flip-screen.
  AQDLQ          Displays on a text-or flip-screen all the viewports currently
                 in use, along with some useful statistics about each one.
                 This command is best executed from the text or flip-screen.
  AQDRQ          Displays current display resolution and memory allocation
                 statistics (CTRL-L provides the same function). When executed
                 from the command prompt of the graphics screen, only a three-
                 line summary will be given.
  AQCLN          Removes objects from display list. "Cleans" the drawing
                 display.
  AQBIRD         Displays Birds-eye window underneath current cursor location.
                 This command is not designed to work for paperspace or
                 perspective viewports.
  AQEPAN ON/OFF  Toggles on and off the Edge-pan feature.
  AQPL           Pan to the left by 25 percent. Regens are never authorized by
                 the pan or zoom in/out Aquila commands.
  AQPR           Pan to the right by 25 percent.
  AQPU           Pan up by 25 percent.
  AQPD           Pan down by 25 percent.
  AQZI           Zoom in by 50 percent.
  AQZO           Zoom out by 50 percent.
  AQZWI          "Zoom way in" while using the same scale factor, will cause a
                 regen. By performing a ZOOM ALL followed by an AQZWI you may
                 zoom around your drawing as much as possible without a regen.
                 (AutoCAD 12 only)
  AQBESZ=xx      Resize the Birds-eye window. Valid number is between 10 and
                 50, and it is a percentage of the graphics screen size.
  AQPANSCR=xx    Amount of the viewport scrolled by the edge-pan feature.
                 Valid number must be between 10 and 80, and it is a
                 percentage of the viewport size.
  AQPANBRD=xx    Width of the edge-pan border given in number of pixels. Valid
                 number must be between 5 and 50.
  AQPANTM1=xx    Amount of initial delay given in number of "clicks" or
                 fractions of a second used before the edge-pan begins. Valid
                 range is 10 to 64.
  AQPANTM2=xx    Amount of time before another edge-pan begins. Valid range
                 is 1 to 18.
  AQEBUF=xx      Size of the erase buffer. Using 0 turns off the buffer.

