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            Readme re the PowerVR(TM) GL Driver for Half-Life

                   Copyright (C) 1998 NEC Electronics

            Email comments and reports of bugs to techsupport@el.nec.com
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 TABLE OF CONTENTS

 1.  Introduction
 2.  Included Files
 3.  Requirements
 4.  Installation
 5.  Adjusting the Screen Brightness or Gamma
 6.  Other Notes
 7.  Legal Stuff


 1. INTRODUCTION

 This version of the PowerVR GL driver is intended ONLY for the commercial 
 release of Half-Life. With this driver, you can now enjoy the improved
 graphics quality of the OpenGL option in Half-Life on your PowerVR 3D 
 accelerator card. 

 This driver is unsupported. However we welcome any comments or reports of 
 bugs that you may have. These should be sent to the email address above.

 NOTE: This driver is not an OpenGL driver. It is only an implementation of
 a subset of the OpenGL API, sufficient to run Half-Life.
 It is not certified by Silicon Graphics Inc. and has not passed any OpenGL
 conformance tests. Do not attempt to use this driver with OpenGL
 applications other than Half-Life.


 2. INCLUDED FILES

 OPENGL32.DLL - The PowerVR GL driver for the commercial release of Half-Life.
 README.TXT   - This file.


 3. REQUIREMENTS

 This driver requires the following to be installed and running
 on the system:

 * Any version of Windows 95.
 * PowerVR Windows 95 drivers version 4.1.1 or later.
 * The commercial release of Half-Life.

 The following is the recommended minimum system requirements:

 * A Pentium 133 or better CPU.
 * 32 Megabytes of RAM.
 * A PowerVR PCX2 card such as the Apocalypse 3Dx or the Matrox m3D.

 NOTE: Because this driver uses the FPU (floating point unit) of the CPU
       extensively, current non-Intel x86 compatible processors require a
       significantly higher clock rate than 133 MHz to match the performance
       of a Pentium 133.


 4. INSTALLATION

 WARNING: Do not copy the driver into your WINDOWS\SYSTEM directory as this
 will prevent other OpenGL applications running on your system, including the
 Windows OpenGL screen savers.

 For Half-Life:

 * Install the commercial release of Half-Life.
 * Put the OPENGL32.DLL file from THIS archive into your SIERRA/Half-Life/ directory
   (NOT your SIERRA/Half-Life/gldrv/ directory).
 * From the Configuration/Video/Video Modes menu, select "Default" as your OpenGL driver.  


 5. ADJUSTING THE SCREEN BRIGHTNESS OR GAMMA

 On many systems, the default brightness of Half-Life is too dark. 
 The game allows you to adjust the brightness.  If you prefer more brightness,
 also try the following:

 * Increasing the contrast and brightness settings on your monitor.
 * Some 2D cards allow boosting the gamma via the Windows 95 Display
   Properties page. 


 6. OTHER NOTES

 * "+gl_lightholes 0" may be added to the command line to improve the appearance of 
   cut-out objects like ladders, railings etc.
 * During the game, when you press [Esc], the menu may sometimes remain invisible. 
   The only indication of the menu's existence is that the windows cursor will appear. 
   If this happens, try exiting (by pressing [Esc]) and entering the menus again 
   (by pressing [Esc]). 


 7. LEGAL STUFF

 1) SINGLE COPY LICENSE: You may download one copy of the information or
 software ("Materials") found on the PowerVR site on a single computer for
 your personal, non-commercial internal use only.

 This is a license, not a transfer of title, and is subject to the following
 restrictions: you may not:

 (a) modify the Materials or use them for any commercial purpose, or any
 public display, performance, sale or rental; (b) decompile, reverse engineer,
 or disassemble software Materials; (c) remove any copyright or other
 proprietary notices from the Materials; (d) transfer the Materials to 
 another person. You agree to prevent any unauthorized copying of the 
 Materials.

 2)   DISCLAIMER: THE MATERIALS ARE PROVIDED "AS IS" WITHOUT ANY EXPRESS OR
 IMPLIED WARRANTY OF ANY KIND INCLUDING WARRANTIES OF MERCHANTABILITY,
 NONINFRINGEMENT OF INTELLECTUAL PROPERTY, OR FITNESS FOR ANY PARTICULAR
 PURPOSE. IN NO EVENT SHALL NEC ELECTRONICS INC. OR ITS SUPPLIERS BE LIABLE
 FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS
 OF PROFITS, BUSINESS INTERRUPTION, LOSS OF INFORMATION) ARISING OUT OF THE
 USE OF OR INABILITY TO USE THE MATERIALS, EVEN IF NEC ELECTRONICS INC. HAS
 BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS
 PROHIBIT THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR
 INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO YOU. NEC
 Electronics Inc. further does not warrant the accuracy or completeness of 
 the information, text, graphics, links or other items contained within these
 materials. NEC Electronics Inc. may make changes to these materials, or to
 the products described therein, at any time without notice. NEC Electronics
 Inc. makes no commitment to update the Materials.

 3)   COPYRIGHT AND TRADEMARK INFORMATION: This driver and this text
 is Copyright 1998 by NEC Electronics Inc.  All rights reserved.

 PowerVR, PowerVR Ready, Apocalypse 3D and Videologic are trademarks or 
 registered trademarks of VideoLogic Ltd. (United Kingdom).  All rights
 reserved.  Used by NECEL with permission. PCX1, PCX2 and NEC is a trademark
 of NEC Corporation (Japan).  All rights reserved.  Microsoft, Windows and 
 Direct3D are either registered trademarks or trademarks of Microsoft 
 Corporation in the United States and/or other countries. Intel and Pentium are registered 
 trademarks of Intel Corporation. Silicon Graphics and OpenGL are registered
 trademarks of Silicon Graphics, Inc. Matrox m3D is a trademark of Matrox
 Graphics Inc. All other trademarks used herein are the property of their 
 respective owners.
