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From: zrjm03@apctrc.trc.amoco.com (Bob J. Mars)
Newsgroups: comp.windows.x,comp.graphics
Subject: PEX question
Message-ID: <1193@apctrc.UUCP>
Date: 20 Nov 89 20:33:13 GMT
Sender: news@apctrc.UUCP
Reply-To: zrjm03@apctrc.trc.amoco.com (Bob J. Mars)
Distribution: usa
Organization: Amoco Production Company, Tulsa Research Center
Lines: 16

It is my understanding that PEX will provide a network-transparent 3D
graphics system.  One of the deficiencies of PHIGS (rightly so with respect
to its design goals) is that it does not allow for "image" (raster) data
display and handling.  However, X does provide a raster data display
capability.

In merging PHIGS with X, will it be possible within the confines of existing
or upcoming ANSI/ISO PHIGS/X standards to underlay, overlay, or mix "image"
data with the 3D graphics provided by PHIGS?  Sun is providing this
capability with an escape function in their version 1.2 release of PHIGS.
Even though this may be a standard way of implementing non-standard features,
it remains non-standard.  Will the PEX "standard" resolve this discrepancy or
will this be a vendor-implementation dependency?
  -Mars-
  All interstellar communication is solely my own.
  zrjm03@apctrc.trc.amoco.com    ..!uunet!apctrc!zrjm03