3DFX GLIDE Source Code General Public License

   1. PREAMBLE

   This license is for software that provides a 3D graphics application
   program interface (API).The license is intended to offer terms similar
   to some standard General Public Licenses designed to foster open
   standards and unrestricted accessibility to source code. Some of these
   licenses require that, as a condition of the license of the software,
   any derivative works (that is, new software which is a work containing
   the original program or a portion of it) must be available for general
   use, without restriction other than for a minor transfer fee, and
   that the source code for such derivative works must likewise be made
   available. The only restriction is that such derivative works must be
   subject to the same General Public License terms as the original work.

   This 3dfx GLIDE Source Code General Public License differs from the
   standard licenses of this type in that it does not require the entire
   derivative work to be made available under the terms of this license
   nor is the recipient required to make available the source code for
   the entire derivative work. Rather, the license is limited to only
   the identifiable portion of the derivative work that is derived from
   the licensed software. The precise terms and conditions for copying,
   distribution and modification follow.

   2. DEFINITIONS

      2.1 This License applies to any program (or other "work") which
      contains a notice placed by the copyright holder saying it may be
      distributed under the terms of this 3dfx GLIDE Source Code General
      Public License.

      2.2 The term "Program" as used in this Agreement refers to 3DFX's
      GLIDE source code and object code and any Derivative Work.

      2.3 "Derivative Work" means, for the purpose of the License, that
      portion of any work that contains the Program or the identifiable
      portion of a work that is derived from the Program, either verbatim
      or with modifications and/or translated into another language,
      and that performs 3D graphics API operations. It does not include
      any other portions of a work.

      2.4 "Modifications of the Program" means any work, which includes
      a Derivative Work, and includes the whole of such work.

      2.5 "License" means this 3dfx GLIDE Source Code General Public
      License.

      2.6 The "Source Code" for a work means the preferred form of
      the work for making modifications to it. For an executable work,
      complete source code means all the source code for all modules it
      contains, any associated interface definition files, and the scripts
      used to control compilation and installation of the executable work.

      2.7 "3dfx" means 3dfx Interactive, Inc.

   3. LICENSED ACTIVITIES

      3.1 COPYING - You may copy and distribute verbatim copies of the
      Program's Source Code as you receive it, in any medium, subject
      to the provision of section 3.3 and provided also that:

         (a) you conspicuously and appropriately publish on each copy an
         appropriate copyright notice (3dfx Interactive, Inc. 1999),
         a notice that recipients who wish to copy, distribute or
         modify the Program can only do so subject to this License,
         and a disclaimer of warranty as set forth in section 5;

         (b) keep intact all the notices that refer to this License and
         to the absence of any warranty; and

         (c) do not make any use of the GLIDE trademark without the
         prior written permission of 3dfx, and

         (d) give all recipients of the Program a copy of this License
         along with the Program or instructions on how to easily receive
         a copy of this License.

      3.2 MODIFICATION OF THE PROGRAM/DERIVATIVE WORKS - You may modify
      your copy or copies of the Program or any portion of it, and copy
      and distribute such modifications subject to the provisions of
      section 3.3 and provided that you also meet all of the following
      conditions:

         (a) you conspicuously and appropriately publish on each copy
         of a Derivative Work an appropriate copyright notice, a notice
         that recipients who wish to copy, distribute or modify the
         Derivative Work can only do so subject to this License, and a
         disclaimer of warranty as set forth in section 5;

         (b) keep intact all the notices that refer to this License and
         to the absence of any warranty; and (c) give all recipients
         of the Derivative Work a copy of this License along with the
         Derivative Work or instructions on how to easily receive a copy
         of this License.

         (d) You must cause the modified files of the Derivative Work
         to carry prominent notices stating that you changed the files
         and the date of any change.

         (e) You must cause any Derivative Work that you distribute or
         publish to be licensed at no charge to all third parties under
         the terms of this License.

         (f) You do not make any use of the GLIDE trademark without the
         prior written permission of 3dfx.

         (g) If the Derivative Work normally reads commands interactively
         when run, you must cause it, when started running for such
         interactive use, to print or display an announcement as follows:

         "COPYRIGHT 3DFX INTERACTIVE, INC. 1999, ALL RIGHTS RESERVED
         THIS SOFTWARE IS FREE AND PROVIDED "AS IS," WITHOUT WARRANTY
         OF ANY KIND, EITHER EXPRESSED OR IMPLIED. THERE IS NO RIGHT
         TO USE THE GLIDE TRADEMARK WITHOUT PRIOR WRITTEN PERMISSION OF
         3DFX INTERACTIVE, INC. SEE THE 3DFX GLIDE GENERAL PUBLIC LICENSE
         FOR A FULL TEXT OF THE DISTRIBUTION AND NON-WARRANTY PROVISIONS
         (REQUEST COPY FROM INFO@3DFX.COM)."

         (h) The requirements of this section 3.2 do not apply to the
         modified work as a whole but only to the Derivative Work. It is
         not the intent of this License to claim rights or contest your
         rights to work written entirely by you; rather, the intent is
         to exercise the right to control the distribution of Derivative
         Works.

      3.3 DISTRIBUTION

         (a) All copies of the Program or Derivative Works which are
         distributed must include in the file headers the following
         language verbatim:

         "THIS SOFTWARE IS SUBJECT TO COPYRIGHT PROTECTION AND IS OFFERED
         ONLY PURSUANT TO THE 3DFX GLIDE GENERAL PUBLIC LICENSE. THERE
         IS NO RIGHT TO USE THE GLIDE TRADEMARK WITHOUT PRIOR WRITTEN
         PERMISSION OF 3DFX INTERACTIVE, INC. A COPY OF THIS LICENSE
         MAY BE OBTAINED FROM THE DISTRIBUTOR OR BY CONTACTING 3DFX
         INTERACTIVE INC (info@3dfx.com). THIS PROGRAM. IS PROVIDED
         "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR
         IMPLIED. SEE THE 3DFX GLIDE GENERAL PUBLIC LICENSE FOR A FULL
         TEXT OF THE NON-WARRANTY PROVISIONS.

         USE, DUPLICATION OR DISCLOSURE BY THE GOVERNMENT IS SUBJECT
         TO RESTRICTIONS AS SET FORTH IN SUBDIVISION (C)(1)(II) OF THE
         RIGHTS IN TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS
         252.227-7013, AND/OR IN SIMILAR OR SUCCESSOR CLAUSES IN THE FAR,
         DOD OR NASA FAR SUPPLEMENT. UNPUBLISHED RIGHTS RESERVED UNDER
         THE COPYRIGHT LAWS OF THE UNITED STATES.

         COPYRIGHT 3DFX INTERACTIVE, INC. 1999, ALL RIGHTS RESERVED"

         (b) You may distribute the Program or a Derivative Work in
         object code or executable form under the terms of Sections 3.1
         and 3.2 provided that you also do one of the following:

            (1) Accompany it with the complete corresponding
            machine-readable source code, which must be distributed
            under the terms of Sections 3.1 and 3.2; or,

            (2) Accompany it with a written offer, valid for at least
            three years, to give any third party, for a charge no more
            than your cost of physically performing source distribution,
            a complete machine-readable copy of the corresponding source
            code, to be distributed under the terms of Sections 3.1 and
            3.2 on a medium customarily used for software interchange; or,

            (3) Accompany it with the information you received as to
            the offer to distribute corresponding source code. (This
            alternative is allowed only for noncommercial distribution and
            only if you received the program in object code or executable
            form with such an offer, in accord with Subsection 3.3(b)(2)
            above.)

         (c) The source code distributed need not include anything that
         is normally distributed (in either source or binary form)
         with the major components (compiler, kernel, and so on) of
         the operating system on which the executable runs, unless that
         component itself accompanies the executable code.

         (d) If distribution of executable code or object code is made by
         offering access to copy from a designated place, then offering
         equivalent access to copy the source code from the same place
         counts as distribution of the source code, even though third
         parties are not compelled to copy the source along with the
         object code.

         (e) Each time you redistribute the Program or any Derivative
         Work, the recipient automatically receives a license from
         3dfx and successor licensors to copy, distribute or modify the
         Program and Derivative Works subject to the terms and conditions
         of the License. You may not impose any further restrictions on
         the recipients' exercise of the rights granted herein. You are
         not responsible for enforcing compliance by third parties to
         this License.

         (f) You may not make any use of the GLIDE trademark without
         the prior written permission of 3dfx.

         (g) You may not copy, modify, sublicense, or distribute the
         Program or any Derivative Works except as expressly provided
         under this License. Any attempt otherwise to copy, modify,
         sublicense or distribute the Program or any Derivative Works
         is void, and will automatically terminate your rights under
         this License. However, parties who have received copies, or
         rights, from you under this License will not have their licenses
         terminated so long as such parties remain in full compliance.

   4. MISCELLANEOUS

      4.1 Acceptance of this License is voluntary. By using, modifying
      or distributing the Program or any Derivative Work, you indicate
      your acceptance of this License to do so, and all its terms and
      conditions for copying, distributing or modifying the Program
      or works based on it. Nothing else grants you permission to
      modify or distribute the Program or Derivative Works and doing so
      without acceptance of this License is in violation of the U.S. and
      international copyright laws.

      4.2 If the distribution and/or use of the Program or Derivative
      Works is restricted in certain countries either by patents or by
      copyrighted interfaces, the original copyright holder who places
      the Program under this License may add an explicit geographical
      distribution limitation excluding those countries, so that
      distribution is permitted only in or among countries not thus
      excluded. In such case, this License incorporates the limitation
      as if written in the body of this License.

      4.3 This License is to be construed according to the laws of the
      State of California and you consent to personal jurisdiction in
      the State of California in the event it is necessary to enforce
      the provisions of this License.

   5. NO WARRANTIES

      5.1 TO THE EXTENT PERMITTED BY APPLICABLE LAW, THERE IS NO WARRANTY
      FOR THE PROGRAM. OR DERIVATIVE WORKS THE COPYRIGHT HOLDERS
      AND/OR OTHER PARTIES PROVIDE THE PROGRAM AND ANY DERIVATIVE
      WORKS"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR
      IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
      ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
      AND ANY DERIVATIVE WORK IS WITH YOU. SHOULD THE PROGRAM OR ANY
      DERIVATIVE WORK PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
      NECESSARY SERVICING, REPAIR OR CORRECTION.

      5.2 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL 3DFX
      INTERACTIVE, INC., OR ANY OTHER COPYRIGHT HOLDER, OR ANY OTHER
      PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM OR DERIVATIVE
      WORKS AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING
      ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
      OUT OF THE USE OR INABILITY TO USE THE PROGRAM OR DERIVATIVE
      WORKS (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
      RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
      OR A FAILURE OF THE PROGRAM OR DERIVATIVE WORKS TO OPERATE WITH
      ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN
      ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
