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- D3D v. 1.21 -- LCD glasses driver for use with Descent
-
- (C) Copyright 1995 Donald Sawdai
- All Rights Reserved
- All products mentioned in this documentation are trademarks of their respective
- owners.
-
-
- For terms of use, see LICENSE.TXT.
-
- Program description and use
- ---------------------------
-
- D3D is a batch file used to call LCDBios and Descent/Descent 2. You may pass
- command-line options either to LCDBios or to Descent on the D3D command-line.
- Any command-line option recognized by LCDBios will be used by LCDBios; any
- other command-line options will be passed on to Descent.
-
- D3D comes in three versions. D3D14A.BAT runs Descent registered version 1.4a.
- LCDBios will not work with earlier versions of Descent. D3D15.BAT runs
- Descent registered version 1.5. D3D2.BAT runs Descent 2 Interactive Demo.
- All of these batch files, by default, are set up to use stereoscopic glasses
- on COM3:. To change this default, edit the batch files.
-
- Note that, at the time of this document, the best version of Descent to
- use with LCDBios is version 1.5. Descent version 1.5 has a newer 3D engine
- than the Descent 2 Interactive Demo! I find that the 3D in Descent 1.5 is
- more realistic and produces much less eye strain than the other versions.
-
- To install D3D for use with Descent, copy the D3D*.BAT files and LCDBIOS.EXE
- into the Descent or Descent 2 directory. Then just type D3D14A, D3D15, or
- D3D2 (as appropriate) to play Descent in 3D!! D3D automatically installs
- LCDBios, runs Descent, and then removes LCDBios when Descent exits.
-
- To see the syntax and command-line options for LCDBios, type
- D3D14a /?
-
- To see the syntax and command-line options for Descent, type
- D3D14a /HELP
-
- By default, D3D passes the following options to LCDBios:
- /COM3 /LCDCtl:fc020100 /HRefresh /LCDRun:descent
- These options indicate serial-port glasses on COM3:, an increased vertical
- refresh rate (to reduce flickering of images), and to run the program or
- batch file "descent" (or "d2demo" for D3D2.BAT).
-
- By default, D3D passes the following options to Descent 1.4a:
- -3dmaxlo
- This option indicates that LCDBios is being used to emulate 3D-BIOS.
-
- By default, D3D passes the following options to Descent 1.5 and Descent 2:
- -lcdbios -JoyNice
- These options indicate that LCDBios is being used and that the joystick
- routine should not hog too much time (which may interfere with LCDBios and
- cause flickering).
-
- For optimizing performance of LCDBios, please see the LCDBios documentation.
- The two best sets of options (on my computer) are
- /HRefresh -- fast but may have a black band
- at the bottom of the screen
- and
- /HRefresh /FastInt:1 /LockFlip -- slower but no black band.
- Tweaking these setting my produce better results on your computer.
-
- To minimize image flicker, be sure to set your video card to the highest
- possible refresh rate that both it and your monitor can support. Descent
- is great in 640x400 at 120 Hz!
-
-
- Special options for Descent 1.5
- -------------------------------
- Descent 1.5 has better 3D effects and more controls that Descent 1.4a and
- the Descent 2 Interactive Demo. For a full list of options, run
- "DESCENT /HELP" or read the "README.TXT" file for Descent 1.5
-
- One major improvement for Descent 1.5 is a better 3D projection for each
- eye, which gives a better appearance of depth. To manually decrease or
- increase the stereoscopic depth, press [Shift-F1] or [Shift-F2] until
- you like the "look" of the game. To manually decrease or increase the
- interocular spacing (distance between the left and right eyes), press
- [Shift-F3] or [Shift-F4]. Press [Shift-F5] to restore the default
- settings.
-
- I have found that the default 3D settings are great at 320x200. At
- 640x??? modes, I prefer to press [Shift-F2] to increase the
- stereoscopic depth to about 17 or 18.
-
- To change Descent resolutions, run one of
- D3D15 -320x100
- D3D15 -320x200
- D3D15 -320x400
- D3D15 -640x400
- D3D15 -640x480
- Note that the -640x400 and -640x480 screen modes are VESA modes and
- require the VESA SuperVGA BIOS 1.2 or higher to be present (either
- available in hardware or loaded in a TSR) prior to running D3D.
- You can also decrease either the horizontal or vertical resolution by
- a factor of 2 by pressing [Shift-F6] repeatedly during game play. A great
- speed/resolution compromise is 640x200 (D3D15 -640x400 and press [Shift-F6]
- once during game play).
-
-
- Note!!!
- -------
- At this time, Descent 1.4a and Descent 2 are not specifically optimized for
- use with stereoscopic (3D) glasses. The quality of the 3D is not great, and
- using the glasses with Descent for a long period of time may give you a
- headache. I highly recommend upgrading your version of Descent to version
- 1.5 (only registered version is available). The patches for Descent 1.0 or
- 1.4a to 1.5 are available for free on many WWW sites, FTP sites, and BBSs.
- The original should be available on the WWW at http://www.pxsoftware.com .
-
-
- Disclaimer
- ----------
- This documentation describes using D3D and LCDBios with Descent. The
- material presented is subject to change without notice. Donald Sawdai claims
- no responsibility for any errors that may be in this documentation or for
- anything resulting from using this documentation.
-