[comp.windows.x] Press Release: Public PEX Implementation Underway

rws@EXPO.LCS.MIT.EDU (Bob Scheifler) (12/12/88)

For Immediate Release
December 12, 1988


	   MIT X Consortium Launches Effort to Bring 3D Graphics
		    Functionality to the X Window System


The Massachusetts Institute of Technology (MIT) and 13 leading computer
companies today announced that they have launched an implementation effort to
extend the X Window System to generate efficient high-quality three-dimensional
(3D) graphics across a network.  For the first time, users of the X Window
System will be able to run 3D software applications on mainframes,
supercomputers, and other remote machines, while displaying and interactively
manipulating the resulting 3D graphics on their local workstations.  This form
of distributed computing in an environment of heterogeneous computers from
multiple manufacturers can significantly increase productivity by better
utilizing resources available in the network.

The functionality being added to the X Window System is a network protocol
known as PEX, or PHIGS/PHIGS+ Extension to X.  PHIGS, the Programmers
Hierarchical Interactive Graphics System, is an international standard for 3D
graphics.  PHIGS+ is an extension to PHIGS being proposed in the international
community to support additional features for lighting, shading, depth cueing,
and advanced curve and surface primitives.  The PEX effort marks a major
milestone in marrying important industry standards, making it possible to use
standard programming interfaces to transmit 3D graphics efficiently across a
network to an X Window System display.

The companies sponsoring the effort are Apollo Computer Inc., Ardent Computer,
Data General Corp., Digital Equipment Corp., Evans and Sutherland, Fujitsu
Limited, Hewlett-Packard Company, Open Software Foundation, Solbourne Computer
Inc., Stellar Computer Inc., Sun Microsystems Inc., Tektronix Inc., and UNICAD
Inc.  In addition to funding the effort, these sponsors will also provide
representatives to review and revise the design of the implementation.

The contract for the implementation has been awarded to Sun Microsystems Inc.
The implementation team will work in concert with the sponsors and with MIT to
ensure a timely and portable implementation.  Sun will produce a public
implementation of the PHIGS/PHIGS+ application programming interface for the X
environment, along with the full network and graphics code necessary to
generate 3D graphics on an X display.  The effort is being coordinated and
controlled by the MIT X Consortium, under the direction of MIT's Robert W.
Scheifler.

A preliminary release to the sponsors is scheduled for the Summer of 1989, and
the first public release of the software and documentation is scheduled for the
late Fall of 1990.  The implementation will become part of the MIT X Consortium
software release, and will be available at distribution cost with no licensing
restrictions.

PEX originated with a proposal by Digital Equipment Corporation and Sun
Microsystems Inc. to an X3D interest group meeting sponsored by MIT in June
1987.  The proposal was revised and finalized in an intensive design process by
an architecture team made up of representatives from Apollo Computer Inc.,
Digital Equipment Corp., Hewlett-Packard Company, and Sun Microsystems Inc.
Three public reviews were held, and the completed specification was released in
December 1987.


X Window System is a trademark of MIT.


For further information, contact:

Robert Scheifler
MIT X Consortium
(617) 253-0628

Jim Barbagallo
Apollo Computer Inc.
(508) 256-6600

Mark Patrick
Ardent Computer
(408) 732-0400

Sanford Friedman
Data General Corp.
(508) 870-6764

Robert Price
Digital Equipment Corp.
(508) 493-4297

Gene McDaniel
Evans and Sutherland
(415) 969-9300

Charles Brauer
Fujitsu America, Inc.
(408) 432-1300

Kathy Dow
Hewlett-Packard Company
(303) 229-2370

Ted Wilson
Open Software Foundation
(617) 621-8700

Brian Doyle
Solbourne Computer Inc.
(303) 772-3400

Patricia LaVigne
Stellar Computer Inc.
(617) 964-1000

John Loiacono
Sun Microsystems Inc.
(415) 336-6424

Donna Loveland
Tektronix Inc.
(503) 685-2838

Ken Garnett
UNICAD Inc.
(303) 443-6961

sorensen@hstbme.mit.edu (Gregory Sorensen) (12/14/88)

In article <8812121316.AA03593@EXPO.LCS.MIT.EDU> rws@EXPO.LCS.MIT.EDU (Bob Scheifler) writes:
>	   MIT X Consortium Launches Effort to Bring 3D Graphics
>		    Functionality to the X Window System
>
>The functionality being added to the X Window System is a network protocol
>known as PEX, or PHIGS/PHIGS+ Extension to X.  PHIGS, the Programmers
>Hierarchical Interactive Graphics System, is an international standard for 3D
>graphics.  PHIGS+ is an extension to PHIGS being proposed in the international
>community to support additional features for lighting, shading, depth cueing,
>and advanced curve and surface primitives.  


Question:  I have heard rumors that PHIGS+ has an image specification.
Is this so?  If so, how will this image spec compare with the proposal
which DEC and others have made for an X image standard specification?
What's the likelihood of them merging?

Thanks,

Greg Sorensen
sorensen@hstbme.mit.edu