28 |
|
#include "ambient.h" |
29 |
|
#include "source.h" |
30 |
|
#include "otypes.h" |
31 |
+ |
#include "otspecial.h" |
32 |
|
#include "resolu.h" |
33 |
|
#include "random.h" |
34 |
|
|
35 |
< |
CUBE thescene; /* our scene */ |
36 |
< |
OBJECT nsceneobjs; /* number of objects in our scene */ |
35 |
> |
extern int inform; /* input format */ |
36 |
> |
extern int outform; /* output format */ |
37 |
> |
extern char *outvals; /* output values */ |
38 |
|
|
39 |
< |
int dimlist[MAXDIM]; /* sampling dimensions */ |
40 |
< |
int ndims = 0; /* number of sampling dimensions */ |
39 |
< |
int samplendx = 0; /* index for this sample */ |
39 |
> |
extern int imm_irrad; /* compute immediate irradiance? */ |
40 |
> |
extern int lim_dist; /* limit distance? */ |
41 |
|
|
42 |
< |
int imm_irrad = 0; /* compute immediate irradiance? */ |
43 |
< |
int lim_dist = 0; /* limit distance? */ |
42 |
> |
extern char *tralist[]; /* list of modifers to trace (or no) */ |
43 |
> |
extern int traincl; /* include == 1, exclude == 0 */ |
44 |
|
|
45 |
< |
int inform = 'a'; /* input format */ |
46 |
< |
int outform = 'a'; /* output format */ |
46 |
< |
char *outvals = "v"; /* output specification */ |
45 |
> |
extern int hresolu; /* horizontal resolution */ |
46 |
> |
extern int vresolu; /* vertical resolution */ |
47 |
|
|
48 |
< |
int do_irrad = 0; /* compute irradiance? */ |
48 |
> |
int castonly = 0; /* only doing ray-casting? */ |
49 |
|
|
50 |
– |
int rand_samp = 0; /* pure Monte Carlo sampling? */ |
51 |
– |
|
52 |
– |
void (*trace)() = NULL; /* trace call */ |
53 |
– |
|
54 |
– |
char *tralist[128]; /* list of modifers to trace (or no) */ |
55 |
– |
int traincl = -1; /* include == 1, exclude == 0 */ |
50 |
|
#ifndef MAXTSET |
51 |
< |
#define MAXTSET 1024 /* maximum number in trace set */ |
51 |
> |
#define MAXTSET 8191 /* maximum number in trace set */ |
52 |
|
#endif |
53 |
|
OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */ |
54 |
|
|
55 |
< |
int hresolu = 0; /* horizontal (scan) size */ |
62 |
< |
int vresolu = 0; /* vertical resolution */ |
55 |
> |
static int Tflag = 0; /* source tracing enabled? */ |
56 |
|
|
57 |
< |
double dstrsrc = 0.0; /* square source distribution */ |
65 |
< |
double shadthresh = .03; /* shadow threshold */ |
66 |
< |
double shadcert = .75; /* shadow certainty */ |
67 |
< |
int directrelay = 2; /* number of source relays */ |
68 |
< |
int vspretest = 512; /* virtual source pretest density */ |
69 |
< |
int directvis = 1; /* sources visible? */ |
70 |
< |
double srcsizerat = .2; /* maximum ratio source size/dist. */ |
57 |
> |
static RAY thisray; /* for our convenience */ |
58 |
|
|
59 |
< |
COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
73 |
< |
COLOR salbedo = BLKCOLOR; /* global scattering albedo */ |
74 |
< |
double seccg = 0.; /* global scattering eccentricity */ |
75 |
< |
double ssampdist = 0.; /* scatter sampling distance */ |
59 |
> |
static FILE *inpfp = NULL; /* input stream pointer */ |
60 |
|
|
61 |
< |
double specthresh = .15; /* specular sampling threshold */ |
62 |
< |
double specjitter = 1.; /* specular sampling jitter */ |
61 |
> |
static FVECT *inp_queue = NULL; /* ray input queue if flushing */ |
62 |
> |
static int inp_qpos = 0; /* next ray to return */ |
63 |
> |
static int inp_qend = 0; /* number of rays in this work group */ |
64 |
|
|
65 |
< |
int backvis = 1; /* back face visibility */ |
65 |
> |
typedef void putf_t(RREAL *v, int n); |
66 |
> |
static putf_t puta, putd, putf, putrgbe; |
67 |
|
|
82 |
– |
int maxdepth = -10; /* maximum recursion depth */ |
83 |
– |
double minweight = 2e-3; /* minimum ray weight */ |
84 |
– |
|
85 |
– |
char *ambfile = NULL; /* ambient file name */ |
86 |
– |
COLOR ambval = BLKCOLOR; /* ambient value */ |
87 |
– |
int ambvwt = 0; /* initial weight for ambient value */ |
88 |
– |
double ambacc = 0.15; /* ambient accuracy */ |
89 |
– |
int ambres = 256; /* ambient resolution */ |
90 |
– |
int ambdiv = 1024; /* ambient divisions */ |
91 |
– |
int ambssamp = 512; /* ambient super-samples */ |
92 |
– |
int ambounce = 0; /* ambient bounces */ |
93 |
– |
char *amblist[AMBLLEN]; /* ambient include/exclude list */ |
94 |
– |
int ambincl = -1; /* include == 1, exclude == 0 */ |
95 |
– |
|
96 |
– |
static int castonly = 0; |
97 |
– |
|
98 |
– |
static RAY thisray; /* for our convenience */ |
99 |
– |
|
100 |
– |
typedef void putf_t(double v); |
101 |
– |
static putf_t puta, putd, putf; |
102 |
– |
|
68 |
|
typedef void oputf_t(RAY *r); |
69 |
< |
static oputf_t oputo, oputd, oputv, oputl, oputL, oputc, oputp, |
70 |
< |
oputn, oputN, oputs, oputw, oputW, oputm, oputM, oputtilde; |
69 |
> |
static oputf_t oputo, oputd, oputv, oputV, oputl, oputL, oputc, oputp, |
70 |
> |
oputr, oputR, oputx, oputX, oputn, oputN, oputs, |
71 |
> |
oputw, oputW, oputm, oputM, oputtilde; |
72 |
|
|
73 |
< |
static void setoutput(char *vs); |
74 |
< |
static void tranotify(OBJECT obj); |
73 |
> |
extern void tranotify(OBJECT obj); |
74 |
> |
static int is_fifo(FILE *fp); |
75 |
|
static void bogusray(void); |
76 |
< |
static void rad(FVECT org, FVECT dir, double dmax); |
77 |
< |
static void irrad(FVECT org, FVECT dir); |
78 |
< |
static void printvals(RAY *r); |
79 |
< |
static int getvec(FVECT vec, int fmt, FILE *fp); |
80 |
< |
static void tabin(RAY *r); |
81 |
< |
static void ourtrace(RAY *r); |
76 |
> |
static void raycast(RAY *r); |
77 |
> |
static void rayirrad(RAY *r); |
78 |
> |
static void rtcompute(FVECT org, FVECT dir, double dmax); |
79 |
> |
static int printvals(RAY *r); |
80 |
> |
static int getvec(FVECT vec, int fmt, FILE *fp); |
81 |
> |
static int iszerovec(const FVECT vec); |
82 |
> |
static double nextray(FVECT org, FVECT dir); |
83 |
> |
static void tabin(RAY *r); |
84 |
> |
static void ourtrace(RAY *r); |
85 |
|
|
86 |
< |
static oputf_t *ray_out[16], *every_out[16]; |
86 |
> |
static oputf_t *ray_out[32], *every_out[32]; |
87 |
|
static putf_t *putreal; |
88 |
|
|
120 |
– |
void (*addobjnotify[])() = {ambnotify, tranotify, NULL}; |
89 |
|
|
122 |
– |
|
90 |
|
void |
91 |
|
quit( /* quit program */ |
92 |
|
int code |
93 |
|
) |
94 |
|
{ |
95 |
< |
#ifndef NON_POSIX /* XXX we don't clean up elsewhere? */ |
96 |
< |
headclean(); /* delete header file */ |
97 |
< |
pfclean(); /* clean up persist files */ |
95 |
> |
if (ray_pnprocs > 0) /* close children if any */ |
96 |
> |
ray_pclose(0); |
97 |
> |
else if (ray_pnprocs < 0) |
98 |
> |
_exit(code); /* avoid flush() in child */ |
99 |
> |
#ifndef NON_POSIX |
100 |
> |
else { |
101 |
> |
headclean(); /* delete header file */ |
102 |
> |
pfclean(); /* clean up persist files */ |
103 |
> |
} |
104 |
|
#endif |
105 |
|
exit(code); |
106 |
|
} |
107 |
|
|
108 |
|
|
109 |
< |
extern char * |
109 |
> |
char * |
110 |
|
formstr( /* return format identifier */ |
111 |
|
int f |
112 |
|
) |
121 |
|
} |
122 |
|
|
123 |
|
|
124 |
< |
extern void |
124 |
> |
static void |
125 |
> |
trace_sources(void) /* trace rays to light sources, also */ |
126 |
> |
{ |
127 |
> |
int sn; |
128 |
> |
|
129 |
> |
for (sn = 0; sn < nsources; sn++) |
130 |
> |
source[sn].sflags |= SFOLLOW; |
131 |
> |
} |
132 |
> |
|
133 |
> |
|
134 |
> |
void |
135 |
|
rtrace( /* trace rays from file */ |
136 |
< |
char *fname |
136 |
> |
char *fname, |
137 |
> |
int nproc |
138 |
|
) |
139 |
|
{ |
140 |
|
unsigned long vcount = (hresolu > 1) ? (unsigned long)hresolu*vresolu |
141 |
< |
: vresolu; |
142 |
< |
long nextflush = hresolu; |
141 |
> |
: (unsigned long)vresolu; |
142 |
> |
long nextflush = (!vresolu | (hresolu <= 1)) * hresolu; |
143 |
> |
int something2flush = 0; |
144 |
|
FILE *fp; |
145 |
|
double d; |
146 |
|
FVECT orig, direc; |
147 |
|
/* set up input */ |
148 |
|
if (fname == NULL) |
149 |
< |
fp = stdin; |
150 |
< |
else if ((fp = fopen(fname, "r")) == NULL) { |
149 |
> |
inpfp = stdin; |
150 |
> |
else if ((inpfp = fopen(fname, "r")) == NULL) { |
151 |
|
sprintf(errmsg, "cannot open input file \"%s\"", fname); |
152 |
|
error(SYSTEM, errmsg); |
153 |
|
} |
154 |
+ |
#ifdef getc_unlocked |
155 |
+ |
flockfile(inpfp); /* avoid lock/unlock overhead */ |
156 |
+ |
flockfile(stdout); |
157 |
+ |
#endif |
158 |
|
if (inform != 'a') |
159 |
< |
SET_FILE_BINARY(fp); |
159 |
> |
SET_FILE_BINARY(inpfp); |
160 |
|
/* set up output */ |
161 |
< |
setoutput(outvals); |
162 |
< |
switch (outform) { |
163 |
< |
case 'a': putreal = puta; break; |
164 |
< |
case 'f': putreal = putf; break; |
165 |
< |
case 'd': putreal = putd; break; |
166 |
< |
case 'c': |
167 |
< |
if (strcmp(outvals, "v")) |
179 |
< |
error(USER, "color format with value output only"); |
180 |
< |
break; |
181 |
< |
default: |
182 |
< |
error(CONSISTENCY, "botched output format"); |
161 |
> |
if (castonly || every_out[0] != NULL) |
162 |
> |
nproc = 1; /* don't bother multiprocessing */ |
163 |
> |
if (Tflag && every_out[0] != NULL) |
164 |
> |
trace_sources(); /* asking to trace light sources */ |
165 |
> |
if ((nextflush > 0) & (nproc > nextflush)) { |
166 |
> |
error(WARNING, "reducing number of processes to match flush interval"); |
167 |
> |
nproc = nextflush; |
168 |
|
} |
169 |
+ |
if (nproc > 1) { /* start multiprocessing */ |
170 |
+ |
ray_popen(nproc); |
171 |
+ |
ray_fifo_out = printvals; |
172 |
+ |
} |
173 |
|
if (hresolu > 0) { |
174 |
|
if (vresolu > 0) |
175 |
|
fprtresolu(hresolu, vresolu, stdout); |
176 |
< |
fflush(stdout); |
176 |
> |
else |
177 |
> |
fflush(stdout); |
178 |
|
} |
179 |
< |
/* process file */ |
180 |
< |
while (getvec(orig, inform, fp) == 0 && |
181 |
< |
getvec(direc, inform, fp) == 0) { |
182 |
< |
|
183 |
< |
d = normalize(direc); |
184 |
< |
if (d == 0.0) { /* zero ==> flush */ |
185 |
< |
bogusray(); |
196 |
< |
if (--nextflush <= 0 || !vcount) { |
179 |
> |
/* process input rays */ |
180 |
> |
while ((d = nextray(orig, direc)) >= 0.0) { |
181 |
> |
if (d == 0.0) { /* flush request? */ |
182 |
> |
if (something2flush) { |
183 |
> |
if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
184 |
> |
error(USER, "child(ren) died"); |
185 |
> |
bogusray(); |
186 |
|
fflush(stdout); |
187 |
< |
nextflush = hresolu; |
188 |
< |
} |
189 |
< |
} else { |
190 |
< |
samplendx = rand_samp ? random() : samplendx+1; |
191 |
< |
/* compute and print */ |
192 |
< |
if (imm_irrad) |
193 |
< |
irrad(orig, direc); |
194 |
< |
else |
195 |
< |
rad(orig, direc, lim_dist ? d : 0.0); |
207 |
< |
/* flush if time */ |
208 |
< |
if (!--nextflush) { |
187 |
> |
nextflush = (!vresolu | (hresolu <= 1)) * hresolu; |
188 |
> |
something2flush = 0; |
189 |
> |
} else |
190 |
> |
bogusray(); |
191 |
> |
} else { /* compute and print */ |
192 |
> |
rtcompute(orig, direc, lim_dist ? d : 0.0); |
193 |
> |
if (!--nextflush) { /* flush if time */ |
194 |
> |
if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
195 |
> |
error(USER, "child(ren) died"); |
196 |
|
fflush(stdout); |
197 |
|
nextflush = hresolu; |
198 |
< |
} |
198 |
> |
} else |
199 |
> |
something2flush = 1; |
200 |
|
} |
201 |
|
if (ferror(stdout)) |
202 |
|
error(SYSTEM, "write error"); |
203 |
|
if (vcount && !--vcount) /* check for end */ |
204 |
|
break; |
205 |
|
} |
206 |
+ |
if (ray_pnprocs > 1) { /* clean up children */ |
207 |
+ |
if (ray_fifo_flush() < 0) |
208 |
+ |
error(USER, "unable to complete processing"); |
209 |
+ |
ray_pclose(0); |
210 |
+ |
} |
211 |
+ |
if (vcount) |
212 |
+ |
error(WARNING, "unexpected EOF on input"); |
213 |
|
if (fflush(stdout) < 0) |
214 |
|
error(SYSTEM, "write error"); |
215 |
< |
if (vcount) |
216 |
< |
error(USER, "unexpected EOF on input"); |
217 |
< |
if (fname != NULL) |
218 |
< |
fclose(fp); |
215 |
> |
if (fname != NULL) { |
216 |
> |
fclose(inpfp); |
217 |
> |
inpfp = NULL; |
218 |
> |
} |
219 |
> |
nextray(NULL, NULL); |
220 |
|
} |
221 |
|
|
222 |
|
|
223 |
< |
static void |
224 |
< |
trace_sources(void) /* trace rays to light sources, also */ |
223 |
> |
int |
224 |
> |
setrtoutput(void) /* set up output tables, return #comp */ |
225 |
|
{ |
226 |
< |
int sn; |
227 |
< |
|
228 |
< |
for (sn = 0; sn < nsources; sn++) |
233 |
< |
source[sn].sflags |= SFOLLOW; |
234 |
< |
} |
226 |
> |
char *vs = outvals; |
227 |
> |
oputf_t **table = ray_out; |
228 |
> |
int ncomp = 0; |
229 |
|
|
230 |
+ |
if (!*vs) |
231 |
+ |
error(USER, "empty output specification"); |
232 |
|
|
233 |
< |
static void |
234 |
< |
setoutput( /* set up output tables */ |
235 |
< |
register char *vs |
236 |
< |
) |
237 |
< |
{ |
238 |
< |
register oputf_t **table = ray_out; |
239 |
< |
|
240 |
< |
castonly = 1; |
241 |
< |
while (*vs) |
242 |
< |
switch (*vs++) { |
233 |
> |
switch (outform) { /* make sure (*putreal)() calls someone! */ |
234 |
> |
case 'a': putreal = puta; break; |
235 |
> |
case 'f': putreal = putf; break; |
236 |
> |
case 'd': putreal = putd; break; |
237 |
> |
case 'c': |
238 |
> |
if (outvals[1] || !strchr("vrx", outvals[0])) |
239 |
> |
error(USER, "color format only with -ov, -or, -ox"); |
240 |
> |
putreal = putrgbe; break; |
241 |
> |
default: |
242 |
> |
error(CONSISTENCY, "botched output format"); |
243 |
> |
} |
244 |
> |
castonly = 1; /* sets castonly as side-effect */ |
245 |
> |
do |
246 |
> |
switch (*vs) { |
247 |
|
case 'T': /* trace sources */ |
248 |
< |
if (!*vs) break; |
249 |
< |
trace_sources(); |
248 |
> |
Tflag++; |
249 |
|
/* fall through */ |
250 |
|
case 't': /* trace */ |
251 |
< |
if (!*vs) break; |
251 |
> |
if (!vs[1]) break; |
252 |
|
*table = NULL; |
253 |
|
table = every_out; |
254 |
|
trace = ourtrace; |
256 |
|
break; |
257 |
|
case 'o': /* origin */ |
258 |
|
*table++ = oputo; |
259 |
+ |
ncomp += 3; |
260 |
|
break; |
261 |
|
case 'd': /* direction */ |
262 |
|
*table++ = oputd; |
263 |
+ |
ncomp += 3; |
264 |
|
break; |
265 |
+ |
case 'r': /* reflected contrib. */ |
266 |
+ |
*table++ = oputr; |
267 |
+ |
ncomp += 3; |
268 |
+ |
castonly = 0; |
269 |
+ |
break; |
270 |
+ |
case 'R': /* reflected distance */ |
271 |
+ |
*table++ = oputR; |
272 |
+ |
ncomp++; |
273 |
+ |
castonly = 0; |
274 |
+ |
break; |
275 |
+ |
case 'x': /* xmit contrib. */ |
276 |
+ |
*table++ = oputx; |
277 |
+ |
ncomp += 3; |
278 |
+ |
castonly = 0; |
279 |
+ |
break; |
280 |
+ |
case 'X': /* xmit distance */ |
281 |
+ |
*table++ = oputX; |
282 |
+ |
ncomp++; |
283 |
+ |
castonly = 0; |
284 |
+ |
break; |
285 |
|
case 'v': /* value */ |
286 |
|
*table++ = oputv; |
287 |
+ |
ncomp += 3; |
288 |
|
castonly = 0; |
289 |
|
break; |
290 |
+ |
case 'V': /* contribution */ |
291 |
+ |
*table++ = oputV; |
292 |
+ |
ncomp += 3; |
293 |
+ |
castonly = 0; |
294 |
+ |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
295 |
+ |
error(WARNING, |
296 |
+ |
"-otV accuracy depends on -aa 0 -as 0"); |
297 |
+ |
break; |
298 |
|
case 'l': /* effective distance */ |
299 |
|
*table++ = oputl; |
300 |
+ |
ncomp++; |
301 |
|
castonly = 0; |
302 |
|
break; |
303 |
|
case 'c': /* local coordinates */ |
304 |
|
*table++ = oputc; |
305 |
+ |
ncomp += 2; |
306 |
|
break; |
307 |
|
case 'L': /* single ray length */ |
308 |
|
*table++ = oputL; |
309 |
+ |
ncomp++; |
310 |
|
break; |
311 |
|
case 'p': /* point */ |
312 |
|
*table++ = oputp; |
313 |
+ |
ncomp += 3; |
314 |
|
break; |
315 |
|
case 'n': /* perturbed normal */ |
316 |
|
*table++ = oputn; |
317 |
+ |
ncomp += 3; |
318 |
|
castonly = 0; |
319 |
|
break; |
320 |
|
case 'N': /* unperturbed normal */ |
321 |
|
*table++ = oputN; |
322 |
+ |
ncomp += 3; |
323 |
|
break; |
324 |
|
case 's': /* surface */ |
325 |
|
*table++ = oputs; |
326 |
+ |
ncomp++; |
327 |
|
break; |
328 |
|
case 'w': /* weight */ |
329 |
|
*table++ = oputw; |
330 |
+ |
ncomp++; |
331 |
|
break; |
332 |
|
case 'W': /* coefficient */ |
333 |
|
*table++ = oputW; |
334 |
< |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
334 |
> |
ncomp += 3; |
335 |
> |
castonly = 0; |
336 |
> |
if (ambounce > 0 && (ambacc > FTINY) | (ambssamp > 0)) |
337 |
|
error(WARNING, |
338 |
|
"-otW accuracy depends on -aa 0 -as 0"); |
339 |
|
break; |
340 |
|
case 'm': /* modifier */ |
341 |
|
*table++ = oputm; |
342 |
+ |
ncomp++; |
343 |
|
break; |
344 |
|
case 'M': /* material */ |
345 |
|
*table++ = oputM; |
346 |
+ |
ncomp++; |
347 |
|
break; |
348 |
|
case '~': /* tilde */ |
349 |
|
*table++ = oputtilde; |
350 |
|
break; |
351 |
+ |
default: |
352 |
+ |
sprintf(errmsg, "unrecognized output option '%c'", *vs); |
353 |
+ |
error(USER, errmsg); |
354 |
|
} |
355 |
+ |
while (*++vs); |
356 |
+ |
|
357 |
|
*table = NULL; |
358 |
+ |
if (*every_out != NULL) |
359 |
+ |
ncomp = 0; |
360 |
+ |
/* compatibility */ |
361 |
+ |
if ((do_irrad | imm_irrad) && castonly) |
362 |
+ |
error(USER, "-I+ and -i+ options require some value output"); |
363 |
+ |
for (table = ray_out; *table != NULL; table++) { |
364 |
+ |
if ((*table == oputV) | (*table == oputW)) |
365 |
+ |
error(WARNING, "-oVW options require trace mode"); |
366 |
+ |
if ((do_irrad | imm_irrad) && |
367 |
+ |
(*table == oputr) | (*table == oputR) | |
368 |
+ |
(*table == oputx) | (*table == oputX)) |
369 |
+ |
error(WARNING, "-orRxX options incompatible with -I+ and -i+"); |
370 |
+ |
} |
371 |
+ |
return(ncomp); |
372 |
|
} |
373 |
|
|
374 |
|
|
375 |
|
static void |
376 |
|
bogusray(void) /* print out empty record */ |
377 |
|
{ |
317 |
– |
thisray.rorg[0] = thisray.rorg[1] = thisray.rorg[2] = |
318 |
– |
thisray.rdir[0] = thisray.rdir[1] = thisray.rdir[2] = 0.0; |
319 |
– |
thisray.rmax = 0.0; |
378 |
|
rayorigin(&thisray, PRIMARY, NULL, NULL); |
379 |
|
printvals(&thisray); |
380 |
|
} |
381 |
|
|
382 |
|
|
383 |
|
static void |
384 |
< |
rad( /* compute and print ray value(s) */ |
385 |
< |
FVECT org, |
328 |
< |
FVECT dir, |
329 |
< |
double dmax |
384 |
> |
raycast( /* compute first ray intersection only */ |
385 |
> |
RAY *r |
386 |
|
) |
387 |
|
{ |
388 |
< |
VCOPY(thisray.rorg, org); |
389 |
< |
VCOPY(thisray.rdir, dir); |
390 |
< |
thisray.rmax = dmax; |
391 |
< |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
392 |
< |
if (castonly) { |
393 |
< |
if (!localhit(&thisray, &thescene)) { |
394 |
< |
if (thisray.ro == &Aftplane) { /* clipped */ |
339 |
< |
thisray.ro = NULL; |
340 |
< |
thisray.rot = FHUGE; |
341 |
< |
} else |
342 |
< |
sourcehit(&thisray); |
343 |
< |
} |
344 |
< |
} else |
345 |
< |
rayvalue(&thisray); |
346 |
< |
printvals(&thisray); |
388 |
> |
if (!localhit(r, &thescene)) { |
389 |
> |
if (r->ro == &Aftplane) { /* clipped */ |
390 |
> |
r->ro = NULL; |
391 |
> |
r->rot = FHUGE; |
392 |
> |
} else |
393 |
> |
sourcehit(r); |
394 |
> |
} |
395 |
|
} |
396 |
|
|
397 |
|
|
398 |
|
static void |
399 |
< |
irrad( /* compute immediate irradiance value */ |
400 |
< |
FVECT org, |
353 |
< |
FVECT dir |
399 |
> |
rayirrad( /* compute irradiance rather than radiance */ |
400 |
> |
RAY *r |
401 |
|
) |
402 |
|
{ |
403 |
< |
register int i; |
403 |
> |
void (*old_revf)(RAY *) = r->revf; |
404 |
> |
/* pretend we hit surface */ |
405 |
> |
r->rxt = r->rot = 1e-5; |
406 |
> |
VSUM(r->rop, r->rorg, r->rdir, r->rot); |
407 |
> |
r->ron[0] = -r->rdir[0]; |
408 |
> |
r->ron[1] = -r->rdir[1]; |
409 |
> |
r->ron[2] = -r->rdir[2]; |
410 |
> |
r->rod = 1.0; |
411 |
> |
/* compute result */ |
412 |
> |
r->revf = raytrace; |
413 |
> |
(*ofun[Lamb.otype].funp)(&Lamb, r); |
414 |
> |
r->revf = old_revf; |
415 |
> |
} |
416 |
|
|
417 |
< |
for (i = 0; i < 3; i++) { |
418 |
< |
thisray.rorg[i] = org[i] + dir[i]; |
419 |
< |
thisray.rdir[i] = -dir[i]; |
417 |
> |
|
418 |
> |
static void |
419 |
> |
rtcompute( /* compute and print ray value(s) */ |
420 |
> |
FVECT org, |
421 |
> |
FVECT dir, |
422 |
> |
double dmax |
423 |
> |
) |
424 |
> |
{ |
425 |
> |
/* set up ray */ |
426 |
> |
if (imm_irrad) { |
427 |
> |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
428 |
> |
thisray.rdir[0] = -dir[0]; |
429 |
> |
thisray.rdir[1] = -dir[1]; |
430 |
> |
thisray.rdir[2] = -dir[2]; |
431 |
> |
thisray.rmax = 0.0; |
432 |
> |
} else { |
433 |
> |
VCOPY(thisray.rorg, org); |
434 |
> |
VCOPY(thisray.rdir, dir); |
435 |
> |
thisray.rmax = dmax; |
436 |
|
} |
362 |
– |
thisray.rmax = 0.0; |
437 |
|
rayorigin(&thisray, PRIMARY, NULL, NULL); |
438 |
< |
/* pretend we hit surface */ |
439 |
< |
thisray.rot = 1.0-1e-4; |
440 |
< |
thisray.rod = 1.0; |
441 |
< |
VCOPY(thisray.ron, dir); |
442 |
< |
for (i = 0; i < 3; i++) /* fudge factor */ |
443 |
< |
thisray.rop[i] = org[i] + 1e-4*dir[i]; |
444 |
< |
/* compute and print */ |
445 |
< |
(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
438 |
> |
if (imm_irrad) |
439 |
> |
thisray.revf = rayirrad; |
440 |
> |
else if (castonly) |
441 |
> |
thisray.revf = raycast; |
442 |
> |
if (ray_pnprocs > 1) { /* multiprocessing FIFO? */ |
443 |
> |
if (ray_fifo_in(&thisray) < 0) |
444 |
> |
error(USER, "lost children"); |
445 |
> |
return; |
446 |
> |
} |
447 |
> |
samplendx++; /* else do it ourselves */ |
448 |
> |
rayvalue(&thisray); |
449 |
|
printvals(&thisray); |
450 |
|
} |
451 |
|
|
452 |
|
|
453 |
< |
static void |
453 |
> |
static int |
454 |
|
printvals( /* print requested ray values */ |
455 |
|
RAY *r |
456 |
|
) |
457 |
|
{ |
458 |
< |
register oputf_t **tp; |
458 |
> |
oputf_t **tp; |
459 |
|
|
460 |
|
if (ray_out[0] == NULL) |
461 |
< |
return; |
461 |
> |
return(0); |
462 |
|
for (tp = ray_out; *tp != NULL; tp++) |
463 |
|
(**tp)(r); |
464 |
|
if (outform == 'a') |
465 |
|
putchar('\n'); |
466 |
+ |
return(1); |
467 |
|
} |
468 |
|
|
469 |
|
|
470 |
|
static int |
471 |
< |
getvec( /* get a vector from fp */ |
472 |
< |
register FVECT vec, |
471 |
> |
is_fifo( /* check if file pointer connected to pipe */ |
472 |
> |
FILE *fp |
473 |
> |
) |
474 |
> |
{ |
475 |
> |
#ifdef S_ISFIFO |
476 |
> |
struct stat sbuf; |
477 |
> |
|
478 |
> |
if (fstat(fileno(fp), &sbuf) < 0) |
479 |
> |
error(SYSTEM, "fstat() failed on input stream"); |
480 |
> |
return(S_ISFIFO(sbuf.st_mode)); |
481 |
> |
#else |
482 |
> |
return (fp == stdin); /* just a guess, really */ |
483 |
> |
#endif |
484 |
> |
} |
485 |
> |
|
486 |
> |
|
487 |
> |
static int |
488 |
> |
getvec( /* get a vector from fp */ |
489 |
> |
FVECT vec, |
490 |
|
int fmt, |
491 |
|
FILE *fp |
492 |
|
) |
494 |
|
static float vf[3]; |
495 |
|
static double vd[3]; |
496 |
|
char buf[32]; |
497 |
< |
register int i; |
497 |
> |
int i; |
498 |
|
|
499 |
|
switch (fmt) { |
500 |
|
case 'a': /* ascii */ |
506 |
|
} |
507 |
|
break; |
508 |
|
case 'f': /* binary float */ |
509 |
< |
if (fread((char *)vf, sizeof(float), 3, fp) != 3) |
509 |
> |
if (getbinary(vf, sizeof(float), 3, fp) != 3) |
510 |
|
return(-1); |
511 |
< |
vec[0] = vf[0]; vec[1] = vf[1]; vec[2] = vf[2]; |
511 |
> |
VCOPY(vec, vf); |
512 |
|
break; |
513 |
|
case 'd': /* binary double */ |
514 |
< |
if (fread((char *)vd, sizeof(double), 3, fp) != 3) |
514 |
> |
if (getbinary(vd, sizeof(double), 3, fp) != 3) |
515 |
|
return(-1); |
516 |
< |
vec[0] = vd[0]; vec[1] = vd[1]; vec[2] = vd[2]; |
516 |
> |
VCOPY(vec, vd); |
517 |
|
break; |
518 |
|
default: |
519 |
|
error(CONSISTENCY, "botched input format"); |
522 |
|
} |
523 |
|
|
524 |
|
|
525 |
< |
static void |
525 |
> |
static int |
526 |
> |
iszerovec(const FVECT vec) |
527 |
> |
{ |
528 |
> |
return (vec[0] == 0.0) & (vec[1] == 0.0) & (vec[2] == 0.0); |
529 |
> |
} |
530 |
> |
|
531 |
> |
|
532 |
> |
static double |
533 |
> |
nextray( /* return next ray in work group (-1.0 if EOF) */ |
534 |
> |
FVECT org, |
535 |
> |
FVECT dir |
536 |
> |
) |
537 |
> |
{ |
538 |
> |
const size_t qlength = !vresolu * hresolu; |
539 |
> |
|
540 |
> |
if ((org == NULL) | (dir == NULL)) { |
541 |
> |
if (inp_queue != NULL) /* asking to free queue */ |
542 |
> |
free(inp_queue); |
543 |
> |
inp_queue = NULL; |
544 |
> |
inp_qpos = inp_qend = 0; |
545 |
> |
return(-1.); |
546 |
> |
} |
547 |
> |
if (!inp_qend) { /* initialize FIFO queue */ |
548 |
> |
int rsiz = 6*20; /* conservative ascii ray size */ |
549 |
> |
if (inform == 'f') rsiz = 6*sizeof(float); |
550 |
> |
else if (inform == 'd') rsiz = 6*sizeof(double); |
551 |
> |
/* check against pipe limit */ |
552 |
> |
if (qlength*rsiz > 512 && is_fifo(inpfp)) |
553 |
> |
inp_queue = (FVECT *)malloc(sizeof(FVECT)*2*qlength); |
554 |
> |
inp_qend = -(inp_queue == NULL); /* flag for no queue */ |
555 |
> |
} |
556 |
> |
if (inp_qend < 0) { /* not queuing? */ |
557 |
> |
if (getvec(org, inform, inpfp) < 0 || |
558 |
> |
getvec(dir, inform, inpfp) < 0) |
559 |
> |
return(-1.); |
560 |
> |
return normalize(dir); |
561 |
> |
} |
562 |
> |
if (inp_qpos >= inp_qend) { /* need to refill input queue? */ |
563 |
> |
for (inp_qend = 0; inp_qend < qlength; inp_qend++) { |
564 |
> |
if (getvec(inp_queue[2*inp_qend], inform, inpfp) < 0 |
565 |
> |
|| getvec(inp_queue[2*inp_qend+1], |
566 |
> |
inform, inpfp) < 0) |
567 |
> |
break; /* hit EOF */ |
568 |
> |
if (iszerovec(inp_queue[2*inp_qend+1])) { |
569 |
> |
++inp_qend; /* flush request */ |
570 |
> |
break; |
571 |
> |
} |
572 |
> |
} |
573 |
> |
inp_qpos = 0; |
574 |
> |
} |
575 |
> |
if (inp_qpos >= inp_qend) /* unexpected EOF? */ |
576 |
> |
return(-1.); |
577 |
> |
VCOPY(org, inp_queue[2*inp_qpos]); |
578 |
> |
VCOPY(dir, inp_queue[2*inp_qpos+1]); |
579 |
> |
++inp_qpos; |
580 |
> |
return normalize(dir); |
581 |
> |
} |
582 |
> |
|
583 |
> |
|
584 |
> |
void |
585 |
|
tranotify( /* record new modifier */ |
586 |
|
OBJECT obj |
587 |
|
) |
588 |
|
{ |
589 |
|
static int hitlimit = 0; |
590 |
< |
register OBJREC *o = objptr(obj); |
591 |
< |
register char **tralp; |
590 |
> |
OBJREC *o = objptr(obj); |
591 |
> |
char **tralp; |
592 |
|
|
593 |
|
if (obj == OVOID) { /* starting over */ |
594 |
|
traset[0] = 0; |
615 |
|
RAY *r |
616 |
|
) |
617 |
|
{ |
618 |
< |
register oputf_t **tp; |
618 |
> |
oputf_t **tp; |
619 |
|
|
620 |
|
if (every_out[0] == NULL) |
621 |
|
return; |
649 |
|
RAY *r |
650 |
|
) |
651 |
|
{ |
652 |
< |
(*putreal)(r->rorg[0]); |
499 |
< |
(*putreal)(r->rorg[1]); |
500 |
< |
(*putreal)(r->rorg[2]); |
652 |
> |
(*putreal)(r->rorg, 3); |
653 |
|
} |
654 |
|
|
655 |
|
|
658 |
|
RAY *r |
659 |
|
) |
660 |
|
{ |
661 |
< |
(*putreal)(r->rdir[0]); |
510 |
< |
(*putreal)(r->rdir[1]); |
511 |
< |
(*putreal)(r->rdir[2]); |
661 |
> |
(*putreal)(r->rdir, 3); |
662 |
|
} |
663 |
|
|
664 |
|
|
665 |
|
static void |
666 |
+ |
oputr( /* print mirrored contribution */ |
667 |
+ |
RAY *r |
668 |
+ |
) |
669 |
+ |
{ |
670 |
+ |
RREAL cval[3]; |
671 |
+ |
|
672 |
+ |
cval[0] = colval(r->mcol,RED); |
673 |
+ |
cval[1] = colval(r->mcol,GRN); |
674 |
+ |
cval[2] = colval(r->mcol,BLU); |
675 |
+ |
(*putreal)(cval, 3); |
676 |
+ |
} |
677 |
+ |
|
678 |
+ |
|
679 |
+ |
|
680 |
+ |
static void |
681 |
+ |
oputR( /* print mirrored distance */ |
682 |
+ |
RAY *r |
683 |
+ |
) |
684 |
+ |
{ |
685 |
+ |
(*putreal)(&r->rmt, 1); |
686 |
+ |
} |
687 |
+ |
|
688 |
+ |
|
689 |
+ |
static void |
690 |
+ |
oputx( /* print unmirrored contribution */ |
691 |
+ |
RAY *r |
692 |
+ |
) |
693 |
+ |
{ |
694 |
+ |
RREAL cval[3]; |
695 |
+ |
|
696 |
+ |
cval[0] = colval(r->rcol,RED) - colval(r->mcol,RED); |
697 |
+ |
cval[1] = colval(r->rcol,GRN) - colval(r->mcol,GRN); |
698 |
+ |
cval[2] = colval(r->rcol,BLU) - colval(r->mcol,BLU); |
699 |
+ |
(*putreal)(cval, 3); |
700 |
+ |
} |
701 |
+ |
|
702 |
+ |
|
703 |
+ |
static void |
704 |
+ |
oputX( /* print unmirrored distance */ |
705 |
+ |
RAY *r |
706 |
+ |
) |
707 |
+ |
{ |
708 |
+ |
(*putreal)(&r->rxt, 1); |
709 |
+ |
} |
710 |
+ |
|
711 |
+ |
|
712 |
+ |
static void |
713 |
|
oputv( /* print value */ |
714 |
|
RAY *r |
715 |
|
) |
716 |
|
{ |
717 |
< |
if (outform == 'c') { |
718 |
< |
COLR cout; |
719 |
< |
setcolr(cout, colval(r->rcol,RED), |
720 |
< |
colval(r->rcol,GRN), |
721 |
< |
colval(r->rcol,BLU)); |
722 |
< |
fwrite((char *)cout, sizeof(cout), 1, stdout); |
526 |
< |
return; |
527 |
< |
} |
528 |
< |
(*putreal)(colval(r->rcol,RED)); |
529 |
< |
(*putreal)(colval(r->rcol,GRN)); |
530 |
< |
(*putreal)(colval(r->rcol,BLU)); |
717 |
> |
RREAL cval[3]; |
718 |
> |
|
719 |
> |
cval[0] = colval(r->rcol,RED); |
720 |
> |
cval[1] = colval(r->rcol,GRN); |
721 |
> |
cval[2] = colval(r->rcol,BLU); |
722 |
> |
(*putreal)(cval, 3); |
723 |
|
} |
724 |
|
|
725 |
|
|
726 |
|
static void |
727 |
+ |
oputV( /* print value contribution */ |
728 |
+ |
RAY *r |
729 |
+ |
) |
730 |
+ |
{ |
731 |
+ |
RREAL contr[3]; |
732 |
+ |
|
733 |
+ |
raycontrib(contr, r, PRIMARY); |
734 |
+ |
multcolor(contr, r->rcol); |
735 |
+ |
(*putreal)(contr, 3); |
736 |
+ |
} |
737 |
+ |
|
738 |
+ |
|
739 |
+ |
static void |
740 |
|
oputl( /* print effective distance */ |
741 |
|
RAY *r |
742 |
|
) |
743 |
|
{ |
744 |
< |
(*putreal)(r->rt); |
744 |
> |
RREAL d = raydistance(r); |
745 |
> |
|
746 |
> |
(*putreal)(&d, 1); |
747 |
|
} |
748 |
|
|
749 |
|
|
752 |
|
RAY *r |
753 |
|
) |
754 |
|
{ |
755 |
< |
(*putreal)(r->rot); |
755 |
> |
(*putreal)(&r->rot, 1); |
756 |
|
} |
757 |
|
|
758 |
|
|
761 |
|
RAY *r |
762 |
|
) |
763 |
|
{ |
764 |
< |
(*putreal)(r->uv[0]); |
558 |
< |
(*putreal)(r->uv[1]); |
764 |
> |
(*putreal)(r->uv, 2); |
765 |
|
} |
766 |
|
|
767 |
|
|
768 |
+ |
static RREAL vdummy[3] = {0.0, 0.0, 0.0}; |
769 |
+ |
|
770 |
+ |
|
771 |
|
static void |
772 |
< |
oputp( /* print point */ |
772 |
> |
oputp( /* print intersection point */ |
773 |
|
RAY *r |
774 |
|
) |
775 |
|
{ |
776 |
< |
if (r->rot < FHUGE) { |
568 |
< |
(*putreal)(r->rop[0]); |
569 |
< |
(*putreal)(r->rop[1]); |
570 |
< |
(*putreal)(r->rop[2]); |
571 |
< |
} else { |
572 |
< |
(*putreal)(0.0); |
573 |
< |
(*putreal)(0.0); |
574 |
< |
(*putreal)(0.0); |
575 |
< |
} |
776 |
> |
(*putreal)(r->rop, 3); /* set to ray origin if distant or no hit */ |
777 |
|
} |
778 |
|
|
779 |
|
|
782 |
|
RAY *r |
783 |
|
) |
784 |
|
{ |
785 |
< |
if (r->rot < FHUGE) { |
786 |
< |
(*putreal)(r->ron[0]); |
787 |
< |
(*putreal)(r->ron[1]); |
587 |
< |
(*putreal)(r->ron[2]); |
588 |
< |
} else { |
589 |
< |
(*putreal)(0.0); |
590 |
< |
(*putreal)(0.0); |
591 |
< |
(*putreal)(0.0); |
785 |
> |
if (r->ro == NULL) { /* zero vector if clipped or no hit */ |
786 |
> |
(*putreal)(vdummy, 3); |
787 |
> |
return; |
788 |
|
} |
789 |
+ |
if (r->rflips & 1) { /* undo any flippin' flips */ |
790 |
+ |
FVECT unrm; |
791 |
+ |
unrm[0] = -r->ron[0]; |
792 |
+ |
unrm[1] = -r->ron[1]; |
793 |
+ |
unrm[2] = -r->ron[2]; |
794 |
+ |
(*putreal)(unrm, 3); |
795 |
+ |
} else |
796 |
+ |
(*putreal)(r->ron, 3); |
797 |
|
} |
798 |
|
|
799 |
|
|
804 |
|
{ |
805 |
|
FVECT pnorm; |
806 |
|
|
807 |
< |
if (r->rot >= FHUGE) { |
808 |
< |
(*putreal)(0.0); |
605 |
< |
(*putreal)(0.0); |
606 |
< |
(*putreal)(0.0); |
807 |
> |
if (r->ro == NULL) { /* clipped or no hit */ |
808 |
> |
(*putreal)(vdummy, 3); |
809 |
|
return; |
810 |
|
} |
811 |
|
raynormal(pnorm, r); |
812 |
< |
(*putreal)(pnorm[0]); |
611 |
< |
(*putreal)(pnorm[1]); |
612 |
< |
(*putreal)(pnorm[2]); |
812 |
> |
(*putreal)(pnorm, 3); |
813 |
|
} |
814 |
|
|
815 |
|
|
831 |
|
RAY *r |
832 |
|
) |
833 |
|
{ |
834 |
< |
(*putreal)(r->rweight); |
834 |
> |
RREAL rwt = r->rweight; |
835 |
> |
|
836 |
> |
(*putreal)(&rwt, 1); |
837 |
|
} |
838 |
|
|
839 |
|
|
840 |
|
static void |
841 |
< |
oputW( /* print contribution */ |
841 |
> |
oputW( /* print coefficient */ |
842 |
|
RAY *r |
843 |
|
) |
844 |
|
{ |
845 |
< |
double contr[3]; |
845 |
> |
RREAL contr[3]; |
846 |
> |
/* shadow ray not on source? */ |
847 |
> |
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro) |
848 |
> |
setcolor(contr, 0.0, 0.0, 0.0); |
849 |
> |
else |
850 |
> |
raycontrib(contr, r, PRIMARY); |
851 |
|
|
852 |
< |
raycontrib(contr, r, PRIMARY); |
646 |
< |
(*putreal)(contr[RED]); |
647 |
< |
(*putreal)(contr[GRN]); |
648 |
< |
(*putreal)(contr[BLU]); |
852 |
> |
(*putreal)(contr, 3); |
853 |
|
} |
854 |
|
|
855 |
|
|
897 |
|
|
898 |
|
|
899 |
|
static void |
900 |
< |
puta( /* print ascii value */ |
901 |
< |
double v |
900 |
> |
puta( /* print ascii value(s) */ |
901 |
> |
RREAL *v, int n |
902 |
|
) |
903 |
|
{ |
904 |
< |
printf("%e\t", v); |
904 |
> |
if (n == 3) { |
905 |
> |
printf("%e\t%e\t%e\t", v[0], v[1], v[2]); |
906 |
> |
return; |
907 |
> |
} |
908 |
> |
while (n--) |
909 |
> |
printf("%e\t", *v++); |
910 |
|
} |
911 |
|
|
912 |
|
|
913 |
|
static void |
914 |
< |
putd(v) /* print binary double */ |
706 |
< |
double v; |
914 |
> |
putd(RREAL *v, int n) /* output binary double(s) */ |
915 |
|
{ |
916 |
< |
fwrite((char *)&v, sizeof(v), 1, stdout); |
916 |
> |
#ifdef SMLFLT |
917 |
> |
double da[3]; |
918 |
> |
int i; |
919 |
> |
|
920 |
> |
if (n > 3) |
921 |
> |
error(INTERNAL, "code error in putd()"); |
922 |
> |
for (i = n; i--; ) |
923 |
> |
da[i] = v[i]; |
924 |
> |
putbinary(da, sizeof(double), n, stdout); |
925 |
> |
#else |
926 |
> |
putbinary(v, sizeof(RREAL), n, stdout); |
927 |
> |
#endif |
928 |
|
} |
929 |
|
|
930 |
|
|
931 |
|
static void |
932 |
< |
putf(v) /* print binary float */ |
714 |
< |
double v; |
932 |
> |
putf(RREAL *v, int n) /* output binary float(s) */ |
933 |
|
{ |
934 |
< |
float f = v; |
934 |
> |
#ifndef SMLFLT |
935 |
> |
float fa[3]; |
936 |
> |
int i; |
937 |
|
|
938 |
< |
fwrite((char *)&f, sizeof(f), 1, stdout); |
938 |
> |
if (n > 3) |
939 |
> |
error(INTERNAL, "code error in putf()"); |
940 |
> |
for (i = n; i--; ) |
941 |
> |
fa[i] = v[i]; |
942 |
> |
putbinary(fa, sizeof(float), n, stdout); |
943 |
> |
#else |
944 |
> |
putbinary(v, sizeof(RREAL), n, stdout); |
945 |
> |
#endif |
946 |
> |
} |
947 |
> |
|
948 |
> |
|
949 |
> |
static void |
950 |
> |
putrgbe(RREAL *v, int n) /* output RGBE color */ |
951 |
> |
{ |
952 |
> |
COLR cout; |
953 |
> |
|
954 |
> |
if (n != 3) |
955 |
> |
error(INTERNAL, "putrgbe() not called with 3 components"); |
956 |
> |
setcolr(cout, v[0], v[1], v[2]); |
957 |
> |
putbinary(cout, sizeof(cout), 1, stdout); |
958 |
|
} |