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/* Copyright (c) 1995 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* rview.c - routines and variables for interactive view generation. |
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* |
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* 3/24/87 |
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* External symbols declared in rpaint.h |
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*/ |
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#include "ray.h" |
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#include "copyright.h" |
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#include "rpaint.h" |
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#include <signal.h> |
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#include <ctype.h> |
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VIEW ourview = STDVIEW; /* viewing parameters */ |
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int hresolu, vresolu; /* image resolution */ |
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#include "ray.h" |
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#include "rpaint.h" |
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CUBE thescene; /* our scene */ |
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OBJECT nsceneobjs; /* number of objects in our scene */ |
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int dimlist[MAXDIM]; /* sampling dimensions */ |
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int ndims = 0; /* number of sampling dimensions */ |
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int samplendx = 0; /* index for this sample */ |
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extern void ambnotify(); |
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void (*addobjnotify[])() = {ambnotify, NULL}; |
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VIEW ourview = STDVIEW; /* viewing parameters */ |
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int hresolu, vresolu; /* image resolution */ |
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void (*trace)() = NULL; /* trace call */ |
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int do_irrad = 0; /* compute irradiance? */ |
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int psample = 8; /* pixel sample size */ |
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double maxdiff = .15; /* max. sample difference */ |
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double srcsizerat = 0.; /* maximum ratio source size/dist. */ |
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COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
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double salbedo = 0.; /* global scattering albedo */ |
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COLOR salbedo = BLKCOLOR; /* global scattering albedo */ |
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double seccg = 0.; /* global scattering eccentricity */ |
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double ssampdist = 0.; /* scatter sampling distance */ |
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int maxdepth = 4; /* maximum recursion depth */ |
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double minweight = 1e-2; /* minimum ray weight */ |
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char *ambfile = NULL; /* ambient file name */ |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
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int ambvwt = 0; /* initial weight for ambient value */ |
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double ambacc = 0.2; /* ambient accuracy */ |
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int ambincl = -1; /* include == 1, exclude == 0 */ |
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int greyscale = 0; /* map colors to brightness? */ |
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char *devname = dev_default; /* output device name */ |
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char *dvcname = dev_default; /* output device name */ |
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struct driver *dev = NULL; /* driver functions */ |
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#define CTRL(c) ((c)-'@') |
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void |
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quit(code) /* quit program */ |
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int code; |
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{ |
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} |
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void |
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devopen(dname) /* open device driver */ |
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char *dname; |
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{ |
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error(USER, errmsg); |
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} else |
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return; |
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#ifndef NIX |
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/* not there, try exec */ |
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if ((dev = comm_init(dname, id)) == NULL) { |
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sprintf(errmsg, "cannot start device \"%s\"", dname); |
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error(USER, errmsg); |
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} |
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#endif |
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} |
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void |
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devclose() /* close our device */ |
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{ |
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if (dev != NULL) |
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} |
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void |
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printdevices() /* print list of output devices */ |
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{ |
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register int i; |
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} |
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void |
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rview() /* do a view */ |
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{ |
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char buf[32]; |
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devopen(devname); /* open device */ |
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devopen(dvcname); /* open device */ |
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newimage(); /* start image (calls fillreserves) */ |
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for ( ; ; ) { /* quit in command() */ |
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} |
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void |
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fillreserves() /* fill memory reserves */ |
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{ |
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if (reserve_mem != NULL) |
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return; |
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reserve_mem = malloc(RESERVE_AMT); |
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reserve_mem = (char *)malloc(RESERVE_AMT); |
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} |
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void |
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freereserves() /* free memory reserves */ |
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{ |
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if (reserve_mem == NULL) |
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} |
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void |
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command(prompt) /* get/execute command */ |
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char *prompt; |
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devclose(); |
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kill(0, SIGTSTP); |
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/* pc stops here */ |
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devopen(devname); |
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devopen(dvcname); |
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redraw(); |
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break; |
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#endif |
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} |
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void |
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rsample() /* sample the image */ |
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{ |
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int xsiz, ysiz, y; |
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return; |
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pl = (PNODE **)malloc(xsiz*sizeof(PNODE *)); |
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if (pl == NULL) { |
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free((char *)rl); |
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free((void *)rl); |
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return; |
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} |
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/* |
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} |
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} |
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escape: |
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free((char *)rl); |
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free((char *)pl); |
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free((void *)rl); |
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free((void *)pl); |
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} |
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