From guest Thu Feb 3 01:38:29 1994 From: "Ran Yakir" Message-Id: <9402031137.ZM5750@amcor.bvr.co.il> Date: Thu, 3 Feb 1994 11:37:10 +0000 X-Mailer: Z-Mail (3.0B.0 25aug93 MediaMail) To: info-performer@sgi.sgi.com Subject: 1.2 bug in pfESkyMode Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 Status: OR Hi ! It seems like there is a bug (feature ?) in pfESkyMode, When using the clear mode PFES_SKY_CLEAR. PFES_SKY_CLEAR sould draw sky AND clear the bottom part of the viewport. Instead, it just draws the sky, thus behaving like PFES_SKY. Bye Ran Yakir From guest Tue May 10 09:07:19 1994 Message-Id: <9405101544.AA07443@sparky.bvu-lads.loral.com> X-Sender: mheinen@sparky.bvu-lads.loral.com Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 10 May 1994 08:11:26 -0800 To: info-performer@sgi.sgi.com From: mheinen@bvu-lads.loral.com (Mark N. Heinen) Subject: Earth-Sky model polygon Status: OR Does anyone know if there is a way to directly control the positioning of the Performer Sky polygon when enabling the sky and horizon backdrop? My objects are intersecting with the sky polygon in the sky even though they are well within the far clipping plane. When I turn off the horizon and sky backdrop, I see my objects in their entirety. Any suggestions are appreciated. - MarkH ------------------------------------------------------------------------------- Mark N. Heinen Loral Advanced Distributed Simulation 13810 SE Eastgate Way Suite 500 Bellevue, WA 98005 EMail : mheinen@bvu-lads.loral.com Phone : (206) 957-3236 Fax : (206) 746-1335 From guest Wed Apr 20 07:48:36 1994 From: watsen@netcom.com (Kent Watsen) Message-Id: <199404201449.HAA24062@mail.netcom.com> Subject: Setting EarthSky clear to transparent To: info-performer@sgi.sgi.com (performer) Date: Wed, 20 Apr 1994 07:49:41 -0700 (PDT) X-Mailer: ELM [version 2.4 PL23] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 479 Status: O Hello, I am trying to create an app with two overlapping channels. The "lower" channel manages the background (Earth/Sky) but no database. The "top" channel will manage the database, but no Sky. I hope to see through the top channel into the lower channel's background. Setting the top channel's clear color's alpha to 1.0f should give me the effect I'm looking for, but it always display the rgb of the rgba clear color instead. Any ideas? Kent Watsen Watsen@netcom.com From guest Fri May 20 09:54:32 1994 From: jrohlf@tubes (John Rohlf) Message-Id: <9405201653.AA01319@tubes.asd.sgi.com> Subject: Re: Setting EarthSky clear to transparent To: guest (Kent Watsen) Date: Fri, 20 May 94 9:53:27 PDT Cc: info-performer@sgi.sgi.com In-Reply-To: <199404201449.HAA24062@mail.netcom.com>; from "Kent Watsen" at Apr 20, 94 7:49 am X-Mailer: ELM [version 2.3 PL8] Status: OR > > > Hello, > > I am trying to create an app with two overlapping channels. > The "lower" channel manages the background (Earth/Sky) but > no database. The "top" channel will manage the database, but > no Sky. I hope to see through the top channel into the lower > channel's background. Setting the top channel's clear color's > alpha to 1.0f should give me the effect I'm looking for, but > it always display the rgb of the rgba clear color instead. > > Any ideas? > > Kent Watsen > Watsen@netcom.com > > > > If you do not clear the top channel then you will composite the top channel over the bottom. I'm not sure this is what you want though.