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README.ACA                  MATROX GRAPHICS INC.          April 1, 1996


		      MGA Millennium AutoCAD DOS Driver
			      Revision 1.06.023

This disk contains the MATROX MGA Millennium DynaView AutoCAD driver
for DOS. This driver works with AutoCAD 11, AutoCAD 12, AutoCAD 13,
and 3D Studio 3 and 4. International AutoCAD is supported with
release 12 and 13.


Disk contents:
-------------

   README.ACA           This file
   INSTALL.EXE          Installation program
   FILES1.ZIP           Product files
   ENGLISH.ZIP          English localization files
   PKUNZIP.EXE          File decompression  utility

Product files: 
-------------

   README.ACA           This file
   DYNAVIEW.DOC         Advanced dynaview documentation
   RCMGAX64.EXP         The driver
   DV3DADS.EXP          DynaView/3D ADS module

   MENU_CMP.EXE         Menu compiler and decompiler
   PALNAME.EXE          Custom Color Palette utility
   STANDARD.PAL         Standard color palette
   BLACKVEC.EXE         Black vector enable/disable utility
   MATPAUSE.EXE         DOS Shell pause enable/disable utility

   MAT8X14.FNT          8 X 14  font file
   MAT8X16.FNT          8 X 16  font file
   MAT12X20.FNT         12 X 20 font file
   MAT12X24.FNT         12 X 24 font file

   WALK.LSP             Sample Lisp program for 3D walk-throughs

   ACAD12.MNU           MATROX customized AutoCAD 12 menu file
   ACAD13.MNU           MATROX customized AutoCAD 13 menu file
   ADD-ON.MNU           MATROX changes to menu file

   DV3DLDIR.DWG         Directional light icon
   DV3DLPOS.DWG         Positional light icon
   DV3DLSPO.DWG         Spot light icon

   MPOPUP.BIN           DynaView/2D popup menu
   MPOPUP.DEF           DynaView/2D menu source
   MPO3D.BIN            DynaView/3D popup menu
   MPOP3D.DEF           DynaView/3D menu source
   VBAR.BIN             Sample menu
   VBAR.DEF             Sample menu source
   SLIDE.SLB            Slide library for menus
  
Software Installation and Configuration:
---------------------------------------

   To install the driver files, type a:\install. and select
   "AutoCAD/3D Studio Dynaview Drivers" from the installation menu.

   The default path for the installation is C:\MGA\ACADRV\.

   During installation, if you state that you have AutoCAD Rel 13, the driver 
   can be automatically copied to the ACAD13 driver subdirectory (normally 
   \R13\DOS\DRV). Make sure to provide the proper path.

   After installation, make sure that the batch file C:\MGA\ACADRV\ACADRV.BAT
   is executed, in order to set the proper environment variables.

   To configure AutoCAD Rel 13 and the driver:

      - Enter:  cd \r13\dos
      - make sure that the new ACAD 13 "ACADDRV" variable is set
      - start AutoCAD with "acad -r"
      - select Matrox MGA Millennium 1.06 driver

   To configure AutoCAD Rel 12 and the driver:

      - Enter:  cd \acad
      - make sure that the new ACAD 12 "ACADDRV" variable is set
      - start AutoCAD with "acad -r"
      - select Matrox MGA Millennium 1.06 driver

   To configure AutoCAD Rel 11 and the driver:

      - Enter:  cd \acad
      - start AutoCAD
      - select Configure AutoCAD
      - select Configure Video Display
      - select ADI P386 v4.0/4.1
   
   You will then automatically enter into the Matrox driver configuration 
   program.

Configuring 3D Studio:
---------------------

Version 3 and 4

  The DynaView driver also supports 3D Studio version 3 and 4.

  To enter 3D Studio configuration type "3DS VIBCFG". You will be 
  presented with the Vibrant configuration.  You need to modify
  the default configuration to load the RCPADI or RDPADI. For 
  example :

     MAIN-DISPLAY=RCPADI
     MATERIAL-DISPLAY=VGA
     RENDER-DISPLAY=RCPADI or RDPADI

  After saving the settings, you will automatically be presented 
  with the Matrox driver configuration program. If you wish to 
  change things such as the resolution and pixel depth, do it now 
  and save your changes. 

  The program will automatically start after you answer the last prompt.

  In order to configure the driver, delete the 3dadi.cfg file before
  starting 3D Studio. 


DynaView/2D commands:
--------------------

   The easiest way to use the DynaView/2D commands is to call the included 
   popup menu by typing at AutoCAD's command line:

      MPOPUP

   It is also possible to call MPOPUP from the keyboard using CTRL+L, or to 
   use the modified ACAD.MNU file included on the distribution disk. See the 
   documentation for more details.

   DynaView/2D includes commands such as Bird's Eye, Spy Glass, as well as
   windowing features such as scroll bars and Text Window. See the DynaView/2D
   chapter for a complete description of the features.

   There are Rel 12 (and 13) and Rel 11 versions of the MPOPUP menu. The Rel 
   12/13 one uses the underscore command prefix for AutoCAD commands, so 
   it will work on international versions of AutoCAD. If you have any problems,
   go in the \mga\acadrv directory and check the MPOPUP, MPOPUP11 and MPOPUP12
   files.
 
   For advanced information on dynaview refer to the DYNAVIEW.DOC file.

DynaView/3D commands:
--------------------

   DynaView/3D will yield gouraud shaded rendering.

   The easiest way to use the DynaView/3D commands is to call the included 
   popup menu by typing at AutoCAD's command line:

      MPOP3D

   Like DynaView/2D, it is also possible to use the modified ACAD.MNU file 
   included on the distribution disk. See the documentation for more details.

   Before you can use the DynaView/3D commands, it is necessary to load the 
   associated ADS application. This can be done via our modified AutoCAD menu
   file or our DynaView 3D popup. Alternately, assuming you have installed
   the driver in the default directory, you may load the ADS application by
   typing the following line at the AutoCAD command prompt:
   (xload "c:/mga/acadrv/dv3dads.exp").
   See the documentation for more details.

   For advanced information on dynaview refer to the DYNAVIEW.DOC file.


DISPLIST utility:
----------------

   In some circumstances, you may have a multi-viewport drawing which contains
   very small viewports, particularly in TILEMODE 0. You would typically not
   perform any drawing editing in a very small viewport, so carrying a display
   list for that viewport consumes memory for no use. 

   The Matrox DISPLIST utility allows you to disable display list creation
   for that type of viewport.

   To use DISPLIST, go to your \mga\acadrv directory and type:

      DISPLIST x, 
     
      where x is the percentage of screen size occupied by viewport.

   Examples: 
     
   1. DISPLIST   0 is the default. It means that all viewports, regardless of
                   size, will get a display list.

   2. DISPLIST  10 means that any viewport that occupies less then 10% of the 
                   screen size will not get a display list.

   3. DISPLIST 100 means that no viewports will get a display list.

   Notes:
   
   - it is not recommended to call the "redrawall" AutoCAD command when some 
     viewports have no display list. 

   - when a viewport has no display list, the viewport will not get redrawn 
     after opening and closing a DynaView window (Text Window, Bird's Eye, 
     etc.). You will have to perform a "redraw" of that viewport.



			     DRIVER HISTORY
			     ==============

Revision 1.00
- This is the first release of the AutoCad driver for the MGA Millennium 
  series of boards.

Revision 1.01
- Added support for 3D studio 3 and 4.
- Minor bug fixes and low-level cleanup.

Revision 1.02
- Added new modes :
    800x600x8 DB Z on 2M Millennium
    1280x1024x24   on 4M Millennium
    1600x1200x24   on 8M Millennium
- Added VESA DDC2B support

Revision 1.04
- Added Multi-Lingual support for AutoCAD release 12 and 13.
- Fixed menu editing to correctly handle the maximum number of characters
  for a button.
- Fixed reconfiguration problem with AVE Render when the text window was OFF.
- Fixed problem with AVE Render display mode in full screen rendering.See
  the "KNOWN BUG, TIPS AND LIMITATIONS" section below for additional
  information on new mode of operation of AVE rernder for AutoCad 12/13.
- Added DDC support for Standard Timings.
- Support for proposed VESA VBE/DDC Version 1.1.  The monitor DDC 				
  implementation is treated as 1.1 only  if the EDID structure returned by the 			
  monitor is Version 1 Revision 1. Note that the alternate use of the detailed
  timing description areas which is new as of 1.1 is not supported by our 
  current implementation 
- Added Displist.exe utility to deactivate display-lists for viewports smaller
  than a given portion of the screen.	

Revision 1.06
- The driver now works with CAD Overlay GSX 7.10
 



                    KNOWN BUGS, TIPS AND LIMITATIONS
                    ================================

3D Studio:
---------
 - See "Configuring 3D Studio" section above for recommended configurations.

 - When using the Matrox driver, the mapping symbol from the Surface/Mapping
   menu will appear in black instead of yellow with one side in green to
   differentiate left and right.

 - When using the Matrox driver, the Material Editor does not work well when
   configured to work in MGA high resolution in 16bpp and 24bpp.  Use the
   VGA for the Material Editor as recommended in the "Configuring 3D Studio"
   section.
 
 - The BPATCH modeler must use the 8x16 font or it will not display properly.

 - There are limitations about which fonts can be used with different
   resolutions :

		Resolution      Font Permitted
		----------      --------------
		640x480         8x14
		800x600         8x14, 8x16
		others          any font

DynaView/3D: 
-----------
  DynaView/3D will yield gouraud shaded rendering.
  In ACAD13,  Dynaview/3D will not render 3D solid objects. 

Text Window:
-----------
  Certain third party applications may not work correctly with the Matrox
  text window. This could typically happen with applications which
  put up menus and colored backgrounds in the acad text screen. If
  problems occur with the text window it should be disabled from
  the configuration.

TILEMODE 0:
----------
  There are a few known problems with the driver in TILEMODE 0 mode, for 
  instance, with viewport borders. Workaround: some problems can be avoided 
  by disabling the DynaView Graphic Window, through the driver configuration 
  utility.
  Other problems will require the use of the "redrawall" command.

AME and AVE Render:
------------------
  There may be some crashes with the advanced modeling extension when you try 
  rendering a drawing. This occurs in the 16 and 24 bpp modes, and is not
  a Matrox specific problem.

  AVE Render with AutoCad 11:	
  --------------------------
  When re-configuring AutoCAD and switching from an 8bit 2D mode to a mode
  which is not also 8bit 2D, subsequent AVE renders may result in incorrect
  results on your display. Switching in the reverse manner may also cause
  problems.  When switching between two 8bit 2D modes or switching between 
  two modes which are not 8bit 2D, the rendering will not be the same size
  as the original drawing. After re-configuring AutoCAD, the user must also
  reconfigure AVE render in order to work around this problem.

  AVE Render with AutoCad 12 and 13:	
  ---------------------------------
  Restrictions as per AutoCad 11 do not apply. Full Screen AVE rendering is
  always done in the mode set with AVE render config. This mode may be
  different than the mode used by AutoCad. This situation may occur if you
  re-configure AutoCad without re-configuring AVE render. It is up to the
  user to re-configure AVE render after re-configuring AutoCad if he wants
  AVE render to use the same display mode as AutoCad.

ACAD13 and Matrox MATRD:
------------------------
  There may be some crashes with ACAD13 if you try to quit or config your
  AutoCAD driver after doing a MATRD while in 16 bits display-list mode. If
  you want to avoid the problem configure the driver in 32 bits display-list
  with the Matrox configuration program.

Performance hints:
-----------------
  The use of a disk cache program is recommended for better performances.

Digitizing tablets:
------------------
  The "interrupt" mode is recommended over the "poll" mode when using the 
  Calcomp tablet with slower systems (486). With Pentium systems, it
  is recommended that you use polling mode and set the VSCAN flag to a
  very large number such as 8,000,000. The VSCAN flag is set by the
  CFIG386.EXE program.

  It is recommended when using the digitizer in a calibrated mode, to
  turn OFF the resizeable graphics window in the driver's configuration
  utility. Otherwise, with the resizable graphics windows ON, when
  zooming a drawing area mouse movement will not be as smooth.
  
CAD Overlay GSX 4.0:
-------------------
  Using the display driver with CAD Overlay GSX 4.0 may cause some problems 
  unless reconfiguring the DynaView driver to disable the resizable graphic 
  editor window.

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