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#include "resolu.h" |
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#include "random.h" |
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|
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CUBE thescene; /* our scene */ |
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OBJECT nsceneobjs; /* number of objects in our scene */ |
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extern int inform; /* input format */ |
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extern int outform; /* output format */ |
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extern char *outvals; /* output values */ |
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|
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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 int imm_irrad; /* compute immediate irradiance? */ |
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extern int lim_dist; /* limit distance? */ |
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|
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int imm_irrad = 0; /* compute immediate irradiance? */ |
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int lim_dist = 0; /* limit distance? */ |
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extern char *tralist[]; /* list of modifers to trace (or no) */ |
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extern int traincl; /* include == 1, exclude == 0 */ |
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|
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int inform = 'a'; /* input format */ |
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int outform = 'a'; /* output format */ |
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char *outvals = "v"; /* output specification */ |
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extern int hresolu; /* horizontal resolution */ |
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extern int vresolu; /* vertical resolution */ |
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|
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int do_irrad = 0; /* compute irradiance? */ |
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static int castonly = 0; |
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|
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int rand_samp = 1; /* pure Monte Carlo sampling? */ |
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void (*trace)() = NULL; /* trace call */ |
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|
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#ifndef MAXMODLIST |
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#define MAXMODLIST 1024 /* maximum modifiers we'll track */ |
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#endif |
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|
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char *tralist[MAXMODLIST]; /* list of modifers to trace (or no) */ |
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int traincl = -1; /* include == 1, exclude == 0 */ |
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#ifndef MAXTSET |
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#define MAXTSET 8191 /* maximum number in trace set */ |
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#endif |
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OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */ |
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|
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int hresolu = 0; /* horizontal (scan) size */ |
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int vresolu = 0; /* vertical resolution */ |
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|
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double dstrsrc = 0.0; /* square source distribution */ |
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double shadthresh = .03; /* shadow threshold */ |
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double shadcert = .75; /* shadow certainty */ |
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int directrelay = 2; /* number of source relays */ |
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int vspretest = 512; /* virtual source pretest density */ |
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int directvis = 1; /* sources visible? */ |
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double srcsizerat = .2; /* maximum ratio source size/dist. */ |
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|
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COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
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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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|
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double specthresh = .15; /* specular sampling threshold */ |
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double specjitter = 1.; /* specular sampling jitter */ |
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|
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int backvis = 1; /* back face visibility */ |
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|
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int maxdepth = -10; /* maximum recursion depth */ |
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double minweight = 2e-3; /* minimum ray weight */ |
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|
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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 = 0.15; /* ambient accuracy */ |
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int ambres = 256; /* ambient resolution */ |
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int ambdiv = 1024; /* ambient divisions */ |
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int ambssamp = 512; /* ambient super-samples */ |
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int ambounce = 0; /* ambient bounces */ |
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char *amblist[AMBLLEN]; /* ambient include/exclude list */ |
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int ambincl = -1; /* include == 1, exclude == 0 */ |
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|
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static int castonly = 0; |
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|
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static RAY thisray; /* for our convenience */ |
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typedef void putf_t(double v); |
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oputn, oputN, oputs, oputw, oputW, oputm, oputM, oputtilde; |
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static void setoutput(char *vs); |
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static void tranotify(OBJECT obj); |
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extern void tranotify(OBJECT obj); |
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static void bogusray(void); |
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static void rad(FVECT org, FVECT dir, double dmax); |
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static void irrad(FVECT org, FVECT dir); |
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static void printvals(RAY *r); |
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static int getvec(FVECT vec, int fmt, FILE *fp); |
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static void tabin(RAY *r); |
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static void ourtrace(RAY *r); |
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static void rad(FVECT org, FVECT dir, double dmax); |
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static void irrad(FVECT org, FVECT dir); |
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static int printvals(RAY *r); |
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static int getvec(FVECT vec, int fmt, FILE *fp); |
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static void tabin(RAY *r); |
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static void ourtrace(RAY *r); |
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static oputf_t *ray_out[16], *every_out[16]; |
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static putf_t *putreal; |
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void (*addobjnotify[])() = {ambnotify, tranotify, NULL}; |
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void |
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quit( /* quit program */ |
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int code |
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) |
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{ |
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#ifndef NON_POSIX /* XXX we don't clean up elsewhere? */ |
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if (ray_pnprocs > 0) /* close children if any */ |
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ray_pclose(0); |
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#ifndef NON_POSIX |
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headclean(); /* delete header file */ |
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pfclean(); /* clean up persist files */ |
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#endif |
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} |
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extern char * |
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char * |
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formstr( /* return format identifier */ |
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int f |
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) |
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default: |
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error(CONSISTENCY, "botched output format"); |
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} |
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ray_fifo_out = printvals; |
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if (hresolu > 0) { |
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if (vresolu > 0) |
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fprtresolu(hresolu, vresolu, stdout); |
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d = normalize(direc); |
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if (d == 0.0) { /* zero ==> flush */ |
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if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
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error(USER, "lost children"); |
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bogusray(); |
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if (--nextflush <= 0 || !vcount) { |
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fflush(stdout); |
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nextflush = hresolu; |
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} |
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} else { |
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samplendx++; |
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/* compute and print */ |
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} else { /* compute and print */ |
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if (imm_irrad) |
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irrad(orig, direc); |
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else |
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rad(orig, direc, lim_dist ? d : 0.0); |
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/* flush if time */ |
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if (!--nextflush) { |
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if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
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error(USER, "lost children"); |
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fflush(stdout); |
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nextflush = hresolu; |
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} |
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if (vcount && !--vcount) /* check for end */ |
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break; |
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} |
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if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
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error(USER, "unable to complete processing"); |
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if (fflush(stdout) < 0) |
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error(SYSTEM, "write error"); |
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if (vcount) |
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VCOPY(thisray.rorg, org); |
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VCOPY(thisray.rdir, dir); |
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thisray.rmax = dmax; |
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if (ray_pnprocs > 1) { |
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if (ray_fifo_in(&thisray) < 0) |
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error(USER, "lost children"); |
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return; |
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} |
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rayorigin(&thisray, PRIMARY, NULL, NULL); |
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if (castonly) { |
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if (!localhit(&thisray, &thescene)) { |
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sourcehit(&thisray); |
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} |
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} else |
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rayvalue(&thisray); |
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ray_trace(&thisray); |
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printvals(&thisray); |
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} |
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} |
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static void |
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static int |
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printvals( /* print requested ray values */ |
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RAY *r |
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) |
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oputf_t **tp; |
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if (ray_out[0] == NULL) |
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return; |
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return(0); |
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for (tp = ray_out; *tp != NULL; tp++) |
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(**tp)(r); |
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if (outform == 'a') |
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putchar('\n'); |
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return(1); |
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} |
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} |
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|
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< |
static void |
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void |
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tranotify( /* record new modifier */ |
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OBJECT obj |
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) |