From theseas!Princeton.EDU!cek Fri, 15 Jul 94 07:49:29 EET Received: by kriton.UUCP (V1.17-beta/Amiga) id <03r0@kriton.UUCP>; Fri, 15 Jul 94 07:49:29 EET Received: by theseas.ntua.gr with UUCP; Thu, 14 Jul 1994 22:30:53 +0300 Received: from nemesis.ics.forth.gr (nemesis.csi.forth.gr) by pythia.ics.forth.gr via FORTHnet with SMTP; id AA18445 (5.65c/FORTH-ICS-3.0-MHS-7.0); Thu, 14 Jul 1994 21:53:27 +0300 Received: from eunet.EU.net by nemesis.ics.forth.gr via FORTHnet with SMTP; id AA26728 (5.65c/ICS-1.1); Thu, 14 Jul 1994 21:44:56 +0300 (EET DST) Received: (uunet@localhost) by eunet.EU.net (8.6.8/8.6.4) with UUCP id UAA24408 for ariadne!theseas!kriton!kyrimis; Thu, 14 Jul 1994 20:49:02 +0200 Received: from Princeton.EDU by relay1.UU.NET with SMTP (relay) id QQwynz05646; Thu, 14 Jul 1994 14:45:02 -0400 Received: from fs.Princeton.EDU by Princeton.EDU (5.65b/2.111/princeton) id AA15127; Thu, 14 Jul 94 14:44:06 -0400 Received: by cs.Princeton.EDU (4.1/1.105) id AA17019; Thu, 14 Jul 94 14:44:05 EDT Received: from netmail.austin.ibm.com by cs.Princeton.EDU (4.1/1.105) id AA16964; Thu, 14 Jul 94 14:43:45 EDT Received: from doorstop.austin.ibm.com by netmail.austin.ibm.com (AIX 3.1/UCB 5.61/gw.0.7) for rayshade-users@cs.princeton.edu at cs.princeton.edu id AA40595; Thu, 14 Jul 94 13:43:43 -0500 Received: by doorstop.austin.ibm.com (AIX 3.2/UCB 5.64/4.03-client-2.4) for rayshade-users@cs.princeton.edu at austin.ibm.com; id AA25818; Thu, 14 Jul 1994 13:43:33 -0500 Organization: Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH) P.O.Box 1385, GR 711 10 Heraklion, Crete, Greece tel.: +30 (81) 39 16 00, fax: +30 (81) 39 16 01 Message-Id: <9407141843.AA25818@doorstop.austin.ibm.com> Date: Thu, 14 Jul 1994 13:43:32 -0500 (CDT) In-Reply-To: <199407141548.AA242100909@dizzy.ece.ucdavis.edu> from "Wes Hardaker" at Jul 14, 94 08:48:29 am X-Mailer: ELM [version 2.4 PL22] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 4113 Errors-To: rayshade-users-request@cs.Princeton.EDU Remailed-Date: Thu Jul 14 14:43:53 EDT 1994 From: tif@austin.ibm.com (Paul Chamberlain) To: hardaker@ece.ucdavis.edu, rayshade-users@cs.Princeton.EDU Subject: Re: rayshade -> heightfield? Wes Hardaker writes: >Has anyone made any patches that will allow rayshade to output a >height field rather than a image? (IE, closer points in white, >farther in black). I made a hack to do this. I was going to do random dot stereograms with the output. Never got around to the stereograms but my ray2hf seemed to kind-o-sort-of work. I've attached my diffs. WARNING: this is a hack. WARNING: it's also a hand pieced together set of diffs -- Paul Chamberlain | | UNIX: tif@austin.ibm.com IBM AWS, I/O Dev | 512/838-3759, IBM T/L 678 | IBM-VNET: TIF AT AUSTIN *** src/libshade/Makefile Wed Aug 26 13:26:39 1992 --- ray2hf/libshade/Makefile Tue Aug 17 14:29:32 1993 *************** *** 25,31 **** INCLUDE = -I.. -I$(LIBRAYDIR) YFLAGS = -d ! CFLAGS = $(CCFLAGS) $(URTINC) $(INCLUDE) $(OPTIMIZE) SHELL = /bin/sh LIB = libshade.a --- 25,31 ---- INCLUDE = -I.. -I$(LIBRAYDIR) YFLAGS = -d ! CFLAGS = $(CCFLAGS) $(URTINC) $(INCLUDE) $(OPTIMIZE) -DRAY2HF SHELL = /bin/sh LIB = libshade.a *** src/libshade/picture.c Tue Aug 17 11:47:38 1993 --- ray2hf/libshade/picture.c Tue Aug 17 11:53:01 1993 *************** *** 289,295 **** } else Options.pictfile = stdout; ! fprintf(Options.pictfile,"%d %d\n",Screen.xsize, Screen.ysize); (void)fflush(Options.pictfile); } --- 289,295 ---- } else Options.pictfile = stdout; ! fprintf(Options.pictfile,"P5\n%d %d\n255\n",Screen.xsize, Screen.ysize); (void)fflush(Options.pictfile); } *************** *** 301,309 **** register int i; for (i = 0; i < Screen.xsize; i++) { ! (void)fputc((int)CORRECT(buf[i].r), Options.pictfile); ! (void)fputc((int)CORRECT(buf[i].g), Options.pictfile); ! (void)fputc((int)CORRECT(buf[i].b), Options.pictfile); } (void)fflush(Options.pictfile); } --- 301,308 ---- register int i; for (i = 0; i < Screen.xsize; i++) { ! fprintf(stderr,"alpha=%f\n",buf[i].alpha); ! (void)fputc((int)(buf[i].alpha), Options.pictfile); } (void)fflush(Options.pictfile); } *** src/libshade/viewing.c Wed Aug 26 13:26:39 1992 --- ray2hf/libshade/viewing.c Tue Aug 17 14:22:01 1993 *************** *** 239,245 **** --- 239,247 ---- color->r *= Sampling.filter[u][v]; color->g *= Sampling.filter[u][v]; color->b *= Sampling.filter[u][v]; + #ifndef RAY2HF color->alpha *= Sampling.filter[u][v]; + #endif } void *************** *** 281,286 **** --- 283,289 ---- dist = FAR_AWAY; hitlist.nodes = 0; (void)TraceRay(ray, &hitlist, EPSILON, &dist); + #ifndef RAY2HF ShadeRay(&hitlist, ray, dist, &Screen.background, &ctmp, &fullintens); color->r = ctmp.r; color->g = ctmp.g; *************** *** 287,292 **** --- 290,299 ---- color->b = ctmp.b; if (hitlist.nodes != 0) { color->alpha = 1.; + #else + if (hitlist.nodes != 0) { + color->alpha = dist; + #endif } else { color->alpha = 0.; } *** src/rayshade/Makefile Wed Aug 26 13:26:45 1992 --- ray2hf/rayshade/Makefile Tue Aug 17 14:29:44 1993 *************** *** 32,38 **** # If you are running on a Multimax, add -DMULTIMAX -DSHAREDMEM # ! CFLAGS = $(CCFLAGS) $(INCLUDE) $(OPTIMIZE) # # C-Linda flags, if appropriate --- 32,38 ---- # If you are running on a Multimax, add -DMULTIMAX -DSHAREDMEM # ! CFLAGS = $(CCFLAGS) $(INCLUDE) $(OPTIMIZE) -DRAY2HF # # C-Linda flags, if appropriate *** src/rayshade/raytrace.c Wed Aug 26 13:26:45 1992 --- ray2hf/rayshade/raytrace.c Tue Aug 17 14:27:19 1993 *************** *** 262,268 **** --- 262,270 ---- pix->r *= Sampling.filter[x][y]; pix->g *= Sampling.filter[x][y]; pix->b *= Sampling.filter[x][y]; + #ifndef RAY2HF pix->alpha *= Sampling.filter[x][y]; + #endif } sampnum = 0; *************** *** 287,293 **** --- 289,297 ---- pix->r += ctmp.r*Sampling.filter[x][y]; pix->g += ctmp.g*Sampling.filter[x][y]; pix->b += ctmp.b*Sampling.filter[x][y]; + #ifndef RAY2HF pix->alpha += ctmp.alpha*Sampling.filter[x][y]; + #endif } if (++sampnum == Sampling.totsamples) sampnum = 0; ---------- Administrivia: rayshade-users-request@cs.princeton.edu Mailing list: rayshade-users@cs.princeton.edu