6 |
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* Initialization and calculation routines |
7 |
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*/ |
8 |
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|
9 |
+ |
#include "copyright.h" |
10 |
+ |
|
11 |
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#include "rcontrib.h" |
10 |
– |
#include "source.h" |
12 |
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#include "otypes.h" |
13 |
< |
#include "platform.h" |
13 |
> |
#include "source.h" |
14 |
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|
15 |
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char *shm_boundary = NULL; /* boundary of shared memory */ |
16 |
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|
21 |
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int ndims = 0; /* number of sampling dimensions */ |
22 |
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int samplendx = 0; /* index for this sample */ |
23 |
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|
24 |
< |
static void trace_contrib(RAY *r); /* our trace callback */ |
24 |
< |
void (*trace)() = trace_contrib; |
24 |
> |
void (*trace)() = NULL; /* trace call (NULL before rcinit) */ |
25 |
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|
26 |
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int do_irrad = 0; /* compute irradiance? */ |
27 |
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|
28 |
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int rand_samp = 1; /* pure Monte Carlo sampling? */ |
29 |
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|
30 |
< |
double dstrsrc = 0.0; /* square source distribution */ |
31 |
< |
double shadthresh = .03; /* shadow threshold */ |
30 |
> |
double dstrsrc = 0.9; /* square source distribution */ |
31 |
> |
double shadthresh = 0.; /* shadow threshold */ |
32 |
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double shadcert = .75; /* shadow certainty */ |
33 |
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int directrelay = 3; /* number of source relays */ |
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int vspretest = 512; /* virtual source pretest density */ |
40 |
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double seccg = 0.; /* global scattering eccentricity */ |
41 |
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double ssampdist = 0.; /* scatter sampling distance */ |
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|
43 |
< |
double specthresh = .15; /* specular sampling threshold */ |
43 |
> |
double specthresh = .02; /* specular sampling threshold */ |
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double specjitter = 1.; /* specular sampling jitter */ |
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|
46 |
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int backvis = 1; /* back face visibility */ |
51 |
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char *ambfile = NULL; /* ambient file name */ |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
53 |
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int ambvwt = 0; /* initial weight for ambient value */ |
54 |
< |
double ambacc = 0; /* ambient accuracy */ |
54 |
> |
double ambacc = 0.; /* ambient accuracy */ |
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int ambres = 256; /* ambient resolution */ |
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int ambdiv = 350; /* ambient divisions */ |
57 |
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int ambssamp = 0; /* ambient super-samples */ |
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RNUMBER lastray = 0; /* last ray number sent */ |
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RNUMBER lastdone = 0; /* last ray output */ |
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|
69 |
< |
static void mcfree(void *p) { epfree((*(MODCONT *)p).binv); free(p); } |
69 |
> |
static void trace_contrib(RAY *r); /* our trace callback */ |
70 |
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|
71 |
+ |
static void mcfree(void *p) { epfree((*(MODCONT *)p).binv,1); free(p); } |
72 |
+ |
|
73 |
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LUTAB modconttab = LU_SINIT(NULL,mcfree); /* modifier lookup table */ |
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|
75 |
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/************************** INITIALIZATION ROUTINES ***********************/ |
76 |
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|
77 |
< |
char * |
77 |
> |
const char * |
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formstr( /* return format identifier */ |
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int f |
80 |
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) |
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case 'a': return("ascii"); |
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case 'f': return("float"); |
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case 'd': return("double"); |
86 |
< |
case 'c': return(COLRFMT); |
86 |
> |
case 'c': return(NCSAMP==3 ? COLRFMT : SPECFMT); |
87 |
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} |
88 |
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return("unknown"); |
89 |
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} |
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|
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/* Add modifier to our list to track */ |
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MODCONT * |
94 |
< |
addmodifier(char *modn, char *outf, char *binv, int bincnt) |
94 |
> |
addmodifier(char *modn, char *outf, char *prms, char *binv, int bincnt) |
95 |
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{ |
96 |
|
LUENT *lep = lu_find(&modconttab,modn); |
97 |
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MODCONT *mp; |
102 |
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sprintf(errmsg, "duplicate modifier '%s'", modn); |
103 |
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error(USER, errmsg); |
104 |
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} |
105 |
< |
if (nmods >= MAXMODLIST) |
106 |
< |
error(INTERNAL, "too many modifiers"); |
105 |
> |
if (!strcmp(modn, VOIDID)) { |
106 |
> |
sprintf(errmsg, "cannot track '%s' modifier", VOIDID); |
107 |
> |
error(USER, errmsg); |
108 |
> |
} |
109 |
> |
if (nmods >= modasiz) { /* need bigger modifier array */ |
110 |
> |
modasiz += modasiz/2 + 64; |
111 |
> |
if (modname == NULL) |
112 |
> |
modname = (char **)malloc(modasiz*sizeof(char *)); |
113 |
> |
else |
114 |
> |
modname = (char **)realloc(modname, modasiz*sizeof(char *)); |
115 |
> |
if (modname == NULL) |
116 |
> |
error(SYSTEM, "Out of memory in addmodifier()"); |
117 |
> |
} |
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modname[nmods++] = modn; /* XXX assumes static string */ |
119 |
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lep->key = modn; /* XXX assumes static string */ |
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if (binv == NULL) |
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error(USER, errmsg); |
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} |
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/* initialize results holder */ |
137 |
< |
mp = (MODCONT *)malloc(sizeof(MODCONT)+sizeof(DCOLOR)*(bincnt-1)); |
137 |
> |
mp = (MODCONT *)malloc(mcsize(bincnt)); |
138 |
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if (mp == NULL) |
139 |
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error(SYSTEM, "out of memory in addmodifier"); |
140 |
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mp->outspec = outf; /* XXX assumes static string */ |
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mp->modname = modn; /* XXX assumes static string */ |
142 |
+ |
mp->params = prms; /* XXX assumes static string */ |
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mp->binv = ebinv; |
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+ |
mp->bin0 = 0; |
145 |
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mp->nbins = bincnt; |
146 |
< |
memset(mp->cbin, 0, sizeof(DCOLOR)*bincnt); |
147 |
< |
/* allocate output streams */ |
148 |
< |
for (i = bincnt; i-- > 0; ) |
149 |
< |
getostream(mp->outspec, mp->modname, i, 1); |
146 |
> |
memset(mp->cbin, 0, DCOLORSIZ*bincnt); |
147 |
> |
/* figure out starting bin */ |
148 |
> |
while (!getostream(mp->outspec, mp->modname, mp->bin0, 1)) |
149 |
> |
mp->bin0++; |
150 |
> |
/* allocate other output streams */ |
151 |
> |
for (i = 0; ++i < mp->nbins; ) |
152 |
> |
getostream(mp->outspec, mp->modname, mp->bin0+i, 1); |
153 |
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lep->data = (char *)mp; |
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return(mp); |
155 |
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} |
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|
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|
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< |
/* add modifiers from a file list */ |
158 |
> |
/* Add modifiers from a file list */ |
159 |
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void |
160 |
< |
addmodfile(char *fname, char *outf, char *binv, int bincnt) |
160 |
> |
addmodfile(char *fname, char *outf, char *prms, char *binv, int bincnt) |
161 |
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{ |
162 |
< |
char *mname[MAXMODLIST]; |
163 |
< |
int i; |
164 |
< |
/* find the file & store strings */ |
165 |
< |
if (wordfile(mname, getpath(fname, getrlibpath(), R_OK)) < 0) { |
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< |
sprintf(errmsg, "cannot find modifier file '%s'", fname); |
162 |
> |
char *path = getpath(fname, getrlibpath(), R_OK); |
163 |
> |
char mod[MAXSTR]; |
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> |
FILE *fp; |
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> |
|
166 |
> |
if (path == NULL || (fp = fopen(path, "r")) == NULL) { |
167 |
> |
if (path == NULL) |
168 |
> |
sprintf(errmsg, "cannot find modifier file '%s'", fname); |
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> |
else |
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> |
sprintf(errmsg, "cannot load modifier file '%s'", path); |
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error(SYSTEM, errmsg); |
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} |
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< |
for (i = 0; mname[i]; i++) /* add each one */ |
174 |
< |
addmodifier(mname[i], outf, binv, bincnt); |
173 |
> |
while (fgetword(mod, sizeof(mod), fp) != NULL) |
174 |
> |
addmodifier(savqstr(mod), outf, prms, binv, bincnt); |
175 |
> |
fclose(fp); |
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} |
177 |
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|
178 |
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|
179 |
+ |
/* Check if we have any more rays left (and report progress) */ |
180 |
+ |
int |
181 |
+ |
morays(void) |
182 |
+ |
{ |
183 |
+ |
static RNUMBER total_rays; |
184 |
+ |
static time_t tstart, last_report; |
185 |
+ |
time_t tnow; |
186 |
+ |
|
187 |
+ |
if (!raysleft) |
188 |
+ |
return(1); /* unknown total, so nothing to do or say */ |
189 |
+ |
|
190 |
+ |
if (report_intvl > 0 && (tnow = time(0)) >= last_report+report_intvl) { |
191 |
+ |
if (!total_rays) { |
192 |
+ |
total_rays = raysleft; |
193 |
+ |
tstart = tnow; |
194 |
+ |
} else { |
195 |
+ |
sprintf(errmsg, "%.2f%% done after %.3f hours\n", |
196 |
+ |
100.-100.*raysleft/total_rays, |
197 |
+ |
(1./3600.)*(tnow - tstart)); |
198 |
+ |
eputs(errmsg); |
199 |
+ |
} |
200 |
+ |
last_report = tnow; |
201 |
+ |
} |
202 |
+ |
return(--raysleft); |
203 |
+ |
} |
204 |
+ |
|
205 |
+ |
|
206 |
+ |
/* Quit program */ |
207 |
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void |
208 |
< |
quit( /* quit program */ |
208 |
> |
quit( |
209 |
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int code |
210 |
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) |
211 |
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{ |
212 |
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if (nchild > 0) /* close children if any */ |
213 |
< |
end_children(); |
213 |
> |
end_children(code != 0); |
214 |
> |
else if (nchild < 0) |
215 |
> |
_exit(code); /* avoid flush() in child */ |
216 |
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exit(code); |
217 |
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} |
218 |
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|
219 |
|
|
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/* Initialize our process(es) */ |
221 |
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static void |
222 |
< |
rcinit() |
222 |
> |
rcinit(void) |
223 |
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{ |
224 |
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int i; |
225 |
|
|
231 |
|
/* set shared memory boundary */ |
232 |
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shm_boundary = strcpy((char *)malloc(16), "SHM_BOUNDARY"); |
233 |
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} |
234 |
< |
if ((nproc > 1) & (accumulate <= 0)) |
235 |
< |
put_zero_record(0); /* prime our queue to accumulate */ |
236 |
< |
|
234 |
> |
trace = trace_contrib; /* set up trace call-back */ |
235 |
> |
for (i = 0; i < nsources; i++) /* tracing to sources as well */ |
236 |
> |
source[i].sflags |= SFOLLOW; |
237 |
|
if (yres > 0) { /* set up flushing & ray counts */ |
238 |
|
if (xres > 0) |
239 |
|
raysleft = (RNUMBER)xres*yres; |
244 |
|
if ((account = accumulate) > 1) |
245 |
|
raysleft *= accumulate; |
246 |
|
waitflush = (yres > 0) & (xres > 1) ? 0 : xres; |
194 |
– |
/* tracing to sources as well */ |
195 |
– |
for (i = 0; i < nsources; i++) |
196 |
– |
source[i].sflags |= SFOLLOW; |
247 |
|
|
248 |
|
if (nproc > 1 && in_rchild()) /* forked child? */ |
249 |
|
return; /* return to main processing loop */ |
250 |
|
|
251 |
|
if (recover) { /* recover previous output? */ |
252 |
< |
if (accumulate <= 0) { |
252 |
> |
if (accumulate <= 0) |
253 |
|
reload_output(); |
254 |
< |
if (nproc > 1) |
205 |
< |
queue_modifiers(); |
206 |
< |
} else |
254 |
> |
else |
255 |
|
recover_output(); |
256 |
|
} |
257 |
|
if (nproc == 1) /* single process? */ |
258 |
|
return; |
259 |
< |
|
260 |
< |
parental_loop(); /* else run controller */ |
259 |
> |
/* else run appropriate controller */ |
260 |
> |
if (accumulate <= 0) |
261 |
> |
feeder_loop(); |
262 |
> |
else |
263 |
> |
parental_loop(); |
264 |
|
quit(0); /* parent musn't return! */ |
265 |
|
} |
266 |
|
|
271 |
|
trace_contrib(RAY *r) |
272 |
|
{ |
273 |
|
MODCONT *mp; |
274 |
+ |
double bval; |
275 |
|
int bn; |
276 |
< |
RREAL contr[3]; |
276 |
> |
SCOLOR contr; |
277 |
> |
DCOLORV *dvp; |
278 |
> |
int i; |
279 |
|
|
280 |
|
if (r->ro == NULL || r->ro->omod == OVOID) |
281 |
|
return; |
282 |
+ |
/* shadow ray not on source? */ |
283 |
+ |
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro) |
284 |
+ |
return; |
285 |
|
|
286 |
|
mp = (MODCONT *)lu_find(&modconttab,objptr(r->ro->omod)->oname)->data; |
287 |
|
|
288 |
|
if (mp == NULL) /* not in our list? */ |
289 |
|
return; |
290 |
|
|
291 |
< |
worldfunc(RCCONTEXT, r); /* get bin number */ |
292 |
< |
bn = (int)(evalue(mp->binv) + .5); |
293 |
< |
if ((bn < 0) | (bn >= mp->nbins)) { |
294 |
< |
error(WARNING, "bad bin number (ignored)"); |
291 |
> |
worldfunc(RCCONTEXT, r); /* else set context */ |
292 |
> |
set_eparams((char *)mp->params); |
293 |
> |
if ((bval = evalue(mp->binv)) <= -.5) /* and get bin number */ |
294 |
> |
return; /* silently ignore negatives */ |
295 |
> |
if ((bn = (int)(bval + .5)) >= mp->nbins) { |
296 |
> |
sprintf(errmsg, "bad bin number (%d ignored)", bn); |
297 |
> |
error(WARNING, errmsg); |
298 |
|
return; |
299 |
|
} |
300 |
< |
raycontrib(contr, r, PRIMARY); |
300 |
> |
raycontrib(contr, r, PRIMARY); /* compute coefficient */ |
301 |
|
if (contrib) |
302 |
< |
multcolor(contr, r->rcol); |
303 |
< |
addcolor(mp->cbin[bn], contr); |
302 |
> |
smultscolor(contr, r->rcol); /* -> contribution */ |
303 |
> |
dvp = mcbin(mp, bn); |
304 |
> |
for (i = 0; i < NCSAMP; i++) /* add it in */ |
305 |
> |
*dvp++ += contr[i]; |
306 |
|
} |
307 |
|
|
308 |
|
|
318 |
|
thisray.rdir[2] = -dir[2]; |
319 |
|
thisray.rmax = 0.0; |
320 |
|
rayorigin(&thisray, PRIMARY, NULL, NULL); |
321 |
< |
thisray.rot = 1e-5; /* pretend we hit surface */ |
321 |
> |
/* pretend we hit surface */ |
322 |
> |
thisray.rxt = thisray.rot = 1e-5; |
323 |
|
thisray.rod = 1.0; |
324 |
+ |
VCOPY(thisray.ron, dir); |
325 |
|
VSUM(thisray.rop, org, dir, 1e-4); |
326 |
|
samplendx++; /* compute result */ |
327 |
|
(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
345 |
|
|
346 |
|
/* Accumulate and/or output ray contributions (child or only process) */ |
347 |
|
static void |
348 |
< |
done_contrib() |
348 |
> |
done_contrib(void) |
349 |
|
{ |
350 |
|
MODCONT *mp; |
351 |
|
int i; |
356 |
|
for (i = 0; i < nmods; i++) { /* output records & clear */ |
357 |
|
mp = (MODCONT *)lu_find(&modconttab,modname[i])->data; |
358 |
|
mod_output(mp); |
359 |
< |
memset(mp->cbin, 0, sizeof(DCOLOR)*mp->nbins); |
359 |
> |
memset(mp->cbin, 0, DCOLORSIZ*mp->nbins); |
360 |
|
} |
361 |
|
end_record(); /* end lines & flush if time */ |
362 |
|
|
366 |
|
|
367 |
|
/* Principal calculation loop (called by main) */ |
368 |
|
void |
369 |
< |
rcontrib() |
369 |
> |
rcontrib(void) |
370 |
|
{ |
371 |
|
static int ignore_warning_given = 0; |
372 |
|
FVECT orig, direc; |
379 |
|
#endif |
380 |
|
while (getvec(orig) == 0 && getvec(direc) == 0) { |
381 |
|
d = normalize(direc); |
382 |
< |
if (nchild != -1 && (d == 0.0) & (accumulate != 1)) { |
382 |
> |
if (nchild != -1 && (d == 0.0) & (accumulate == 0)) { |
383 |
|
if (!ignore_warning_given++) |
384 |
|
error(WARNING, |
385 |
|
"dummy ray(s) ignored during accumulation\n"); |
389 |
|
lastray = lastdone = 0; |
390 |
|
++lastray; |
391 |
|
if (d == 0.0) { /* zero ==> flush */ |
392 |
< |
if ((yres <= 0) | (xres <= 0)) |
393 |
< |
waitflush = 1; /* flush right after */ |
394 |
< |
account = 1; |
392 |
> |
if ((yres <= 0) | (xres <= 1)) |
393 |
> |
waitflush = 1; /* flush after */ |
394 |
> |
if (nchild == -1) |
395 |
> |
account = 1; |
396 |
|
} else if (imm_irrad) { /* else compute */ |
397 |
|
eval_irrad(orig, direc); |
398 |
|
} else { |
400 |
|
} |
401 |
|
done_contrib(); /* accumulate/output */ |
402 |
|
++lastdone; |
403 |
< |
if (raysleft && !--raysleft) |
403 |
> |
if (!morays()) |
404 |
|
break; /* preemptive EOI */ |
405 |
|
} |
406 |
|
if (nchild != -1 && (accumulate <= 0) | (account < accumulate)) { |
411 |
|
account = 1; /* output accumulated totals */ |
412 |
|
done_contrib(); |
413 |
|
} |
414 |
+ |
lu_done(&ofiletab); /* close output files */ |
415 |
|
if (raysleft) |
416 |
|
error(USER, "unexpected EOF on input"); |
351 |
– |
lu_done(&ofiletab); /* close output files */ |
417 |
|
} |