8 |
|
* Make illum sources for optimizing rendering process |
9 |
|
*/ |
10 |
|
|
11 |
< |
#include "standard.h" |
11 |
> |
#include "mkillum.h" |
12 |
|
|
13 |
< |
#include "object.h" |
13 |
> |
#include <signal.h> |
14 |
|
|
15 |
< |
#include "otypes.h" |
15 |
> |
#include <ctype.h> |
16 |
|
|
17 |
|
/* default parameters */ |
18 |
< |
#define SAMPDENS 128 /* points per projected steradian */ |
18 |
> |
#define SAMPDENS 48 /* points per projected steradian */ |
19 |
|
#define NSAMPS 32 /* samples per point */ |
20 |
|
#define DFLMAT "illum_mat" /* material name */ |
21 |
+ |
#define DFLDAT "illum" /* data file name */ |
22 |
|
/* selection options */ |
23 |
|
#define S_NONE 0 /* select none */ |
24 |
|
#define S_ELEM 1 /* select specified element */ |
26 |
|
#define S_ALL 3 /* select all */ |
27 |
|
|
28 |
|
/* rtrace command and defaults */ |
29 |
< |
char *rtargv[64] = { "rtrace", "-dj", ".25", "-dr", "3", "-ab", "2", |
30 |
< |
"-ad", "256", "-as", "128", "-aa", ".15" }; |
31 |
< |
int rtargc = 13; |
29 |
> |
char *rtargv[64] = { "rtrace", "-dj", ".25", "-dr", "3", "-di+", |
30 |
> |
"-ab", "2", "-ad", "256", "-as", "128", "-aa", ".15", }; |
31 |
> |
int rtargc = 14; |
32 |
|
/* overriding rtrace options */ |
33 |
< |
char *myrtopts[] = { "-I-", "-i-", "-di+", "-ov", "-h-", "-fff", NULL }; |
33 |
> |
char *myrtopts[] = { "-I-", "-i-", "-ov", "-h-", "-fff", NULL }; |
34 |
|
|
35 |
< |
/* illum flags */ |
35 |
< |
#define IL_FLAT 0x1 /* flat surface */ |
36 |
< |
#define IL_LIGHT 0x2 /* light rather than illum */ |
37 |
< |
#define IL_COLDST 0x4 /* colored distribution */ |
38 |
< |
#define IL_COLAVG 0x8 /* compute average color */ |
39 |
< |
#define IL_DATCLB 0x10 /* OK to clobber data file */ |
35 |
> |
struct rtproc rt; /* our rtrace process */ |
36 |
|
|
37 |
< |
struct illum_args { |
38 |
< |
int flags; /* flags from list above */ |
39 |
< |
char matname[MAXSTR]; /* illum material name */ |
40 |
< |
char datafile[MAXSTR]; /* distribution data file name */ |
41 |
< |
int dfnum; /* data file number */ |
42 |
< |
char altmatname[MAXSTR]; /* alternate material name */ |
43 |
< |
int nsamps; /* # of samples in each direction */ |
44 |
< |
int nalt, nazi; /* # of altitude and azimuth angles */ |
45 |
< |
FVECT orient; /* coordinate system orientation */ |
46 |
< |
} thisillum = { /* default values */ |
51 |
< |
0, |
52 |
< |
DFLMAT, |
53 |
< |
DFLMAT, |
54 |
< |
0, |
55 |
< |
VOIDID, |
56 |
< |
NSAMPS, |
57 |
< |
}; |
37 |
> |
struct illum_args thisillum = { /* our illum and default values */ |
38 |
> |
0, |
39 |
> |
DFLMAT, |
40 |
> |
DFLDAT, |
41 |
> |
0, |
42 |
> |
VOIDID, |
43 |
> |
SAMPDENS, |
44 |
> |
NSAMPS, |
45 |
> |
0., |
46 |
> |
}; |
47 |
|
|
59 |
– |
int sampdens = SAMPDENS; /* sample point density */ |
48 |
|
char matcheck[MAXSTR]; /* current material to include or exclude */ |
49 |
|
int matselect = S_ALL; /* selection criterion */ |
50 |
|
|
51 |
< |
int rt_pd[3]; /* rtrace pipe descriptors */ |
64 |
< |
float *rt_buf; /* rtrace i/o buffer */ |
65 |
< |
int rt_bsiz; /* maximum rays for rtrace buffer */ |
66 |
< |
int rt_nrays; /* current length of rtrace buffer */ |
51 |
> |
FUN ofun[NUMOTYPE] = INIT_OTYPE; /* object types */ |
52 |
|
|
53 |
|
int gargc; /* global argc */ |
54 |
|
char **gargv; /* global argv */ |
55 |
|
#define progname gargv[0] |
56 |
|
|
57 |
|
int doneheader = 0; /* printed header yet? */ |
58 |
+ |
#define checkhead() if (!doneheader++) printhead(gargc,gargv) |
59 |
|
|
60 |
+ |
int warnings = 1; /* print warnings? */ |
61 |
+ |
|
62 |
|
extern char *fgetline(), *fgetword(), *sskip(), |
63 |
< |
*atos(), *iskip(), *fskip(); |
63 |
> |
*atos(), *iskip(), *fskip(), *strcpy(); |
64 |
|
extern FILE *popen(); |
65 |
|
|
66 |
|
|
70 |
|
{ |
71 |
|
extern char *getenv(), *getpath(); |
72 |
|
char *rtpath; |
73 |
+ |
FILE *fp; |
74 |
|
register int i; |
75 |
|
/* set global arguments */ |
76 |
< |
gargc = argc; gargv = argv; |
76 |
> |
gargv = argv; |
77 |
|
/* set up rtrace command */ |
78 |
< |
if (argc < 2) |
79 |
< |
error(USER, "too few arguments"); |
80 |
< |
for (i = 1; i < argc-1; i++) |
78 |
> |
for (i = 1; i < argc; i++) { |
79 |
> |
if (argv[i][0] == '<' && !argv[i][1]) |
80 |
> |
break; |
81 |
|
rtargv[rtargc++] = argv[i]; |
82 |
+ |
if (argv[i][0] == '-' && argv[i][1] == 'w') |
83 |
+ |
warnings = !warnings; |
84 |
+ |
} |
85 |
+ |
if ((gargc = i) < 2) |
86 |
+ |
error(USER, "too few arguments"); |
87 |
+ |
rtargc--; |
88 |
|
for (i = 0; myrtopts[i] != NULL; i++) |
89 |
|
rtargv[rtargc++] = myrtopts[i]; |
90 |
< |
rtargv[rtargc++] = argv[argc-1]; |
90 |
> |
rtargv[rtargc++] = argv[gargc-1]; |
91 |
|
rtargv[rtargc] = NULL; |
92 |
|
/* just asking for defaults? */ |
93 |
< |
if (!strcmp(argv[argc-1], "-defaults")) { |
93 |
> |
if (!strcmp(argv[gargc-1], "-defaults")) { |
94 |
> |
printopts(); fflush(stdout); |
95 |
|
rtpath = getpath(rtargv[0], getenv("PATH"), X_OK); |
96 |
|
if (rtpath == NULL) { |
97 |
|
eputs(rtargv[0]); |
104 |
|
} |
105 |
|
/* else initialize and run our calculation */ |
106 |
|
init(); |
107 |
< |
mkillum(stdin, "standard input"); |
108 |
< |
exit(cleanup()); /* cleanup returns rtrace status */ |
107 |
> |
if (gargc+1 < argc) |
108 |
> |
for (i = gargc+1; i < argc; i++) { |
109 |
> |
if ((fp = fopen(argv[i], "r")) == NULL) { |
110 |
> |
sprintf(errmsg, |
111 |
> |
"cannot open scene file \"%s\"", argv[i]); |
112 |
> |
error(SYSTEM, errmsg); |
113 |
> |
} |
114 |
> |
filter(fp, argv[i]); |
115 |
> |
fclose(fp); |
116 |
> |
} |
117 |
> |
else |
118 |
> |
filter(stdin, "standard input"); |
119 |
> |
quit(0); |
120 |
|
} |
121 |
|
|
122 |
|
|
123 |
+ |
quit(status) /* exit with status */ |
124 |
+ |
int status; |
125 |
+ |
{ |
126 |
+ |
int rtstat; |
127 |
+ |
|
128 |
+ |
rtstat = close_process(rt.pd); |
129 |
+ |
if (status == 0) |
130 |
+ |
if (rtstat < 0) |
131 |
+ |
error(WARNING, |
132 |
+ |
"unknown return status from rtrace process"); |
133 |
+ |
else |
134 |
+ |
status = rtstat; |
135 |
+ |
exit(status); |
136 |
+ |
} |
137 |
+ |
|
138 |
+ |
|
139 |
|
init() /* start rtrace and set up buffers */ |
140 |
|
{ |
141 |
+ |
extern int o_face(), o_sphere(), o_ring(); |
142 |
|
int maxbytes; |
143 |
< |
|
144 |
< |
maxbytes = open_process(rt_pd, rtargv); |
143 |
> |
/* set up object functions */ |
144 |
> |
ofun[OBJ_FACE].funp = o_face; |
145 |
> |
ofun[OBJ_SPHERE].funp = o_sphere; |
146 |
> |
ofun[OBJ_RING].funp = o_ring; |
147 |
> |
/* set up signal handling */ |
148 |
> |
signal(SIGPIPE, quit); |
149 |
> |
/* start rtrace process */ |
150 |
> |
errno = 0; |
151 |
> |
maxbytes = open_process(rt.pd, rtargv); |
152 |
|
if (maxbytes == 0) { |
153 |
|
eputs(rtargv[0]); |
154 |
|
eputs(": command not found\n"); |
156 |
|
} |
157 |
|
if (maxbytes < 0) |
158 |
|
error(SYSTEM, "cannot start rtrace process"); |
159 |
< |
rt_bsiz = maxbytes/(6*sizeof(float)); |
160 |
< |
rt_buf = (float *)malloc(rt_bsiz*(6*sizeof(float))); |
161 |
< |
if (rt_buf == NULL) |
159 |
> |
rt.bsiz = maxbytes/(6*sizeof(float)); |
160 |
> |
rt.buf = (float *)malloc(6*sizeof(float)*rt.bsiz--); |
161 |
> |
rt.dest = (float **)malloc(sizeof(float *)*rt.bsiz); |
162 |
> |
if (rt.buf == NULL || rt.dest == NULL) |
163 |
|
error(SYSTEM, "out of memory in init"); |
164 |
< |
rt_bsiz--; /* allow for flush ray */ |
165 |
< |
rt_nrays = 0; |
164 |
> |
rt.nrays = 0; |
165 |
> |
/* set up urand */ |
166 |
> |
initurand(2048); |
167 |
|
} |
168 |
|
|
169 |
|
|
137 |
– |
int |
138 |
– |
cleanup() /* close rtrace process and return status */ |
139 |
– |
{ |
140 |
– |
int status; |
141 |
– |
|
142 |
– |
free((char *)rt_buf); |
143 |
– |
rt_bsiz = 0; |
144 |
– |
status = close_process(rt_pd); |
145 |
– |
if (status < 0) |
146 |
– |
return(0); /* unknown status */ |
147 |
– |
return(status); |
148 |
– |
} |
149 |
– |
|
150 |
– |
|
170 |
|
eputs(s) /* put string to stderr */ |
171 |
|
register char *s; |
172 |
|
{ |
182 |
|
} |
183 |
|
|
184 |
|
|
185 |
< |
mkillum(infp, name) /* process stream */ |
185 |
> |
wputs(s) /* print warning if enabled */ |
186 |
> |
char *s; |
187 |
> |
{ |
188 |
> |
if (warnings) |
189 |
> |
eputs(s); |
190 |
> |
} |
191 |
> |
|
192 |
> |
|
193 |
> |
filter(infp, name) /* process stream */ |
194 |
|
register FILE *infp; |
195 |
|
char *name; |
196 |
|
{ |
204 |
|
if (c == '#') { /* comment/options */ |
205 |
|
buf[0] = c; |
206 |
|
fgets(buf+1, sizeof(buf)-1, infp); |
207 |
< |
fputs(buf, stdout); |
181 |
< |
getoptions(buf, name); |
207 |
> |
xoptions(buf, name); |
208 |
|
} else if (c == '!') { /* command */ |
209 |
|
buf[0] = c; |
210 |
|
fgetline(buf+1, sizeof(buf)-1, infp); |
212 |
|
sprintf(errmsg, "cannot execute \"%s\"", buf); |
213 |
|
error(SYSTEM, errmsg); |
214 |
|
} |
215 |
< |
mkillum(pfp, buf); |
215 |
> |
filter(pfp, buf); |
216 |
|
pclose(pfp); |
217 |
|
} else { /* object */ |
218 |
|
ungetc(c, infp); |
222 |
|
} |
223 |
|
|
224 |
|
|
225 |
< |
getoptions(s, nm) /* get options from string s */ |
225 |
> |
xoptions(s, nm) /* process options in string s */ |
226 |
|
char *s; |
227 |
|
char *nm; |
228 |
|
{ |
231 |
|
int nerrs = 0; |
232 |
|
register char *cp; |
233 |
|
|
234 |
< |
if (strncmp(s, "#@mkillum", 9) || !isspace(s[9])) |
234 |
> |
if (strncmp(s, "#@mkillum", 9) || !isspace(s[9])) { |
235 |
> |
fputs(s, stdout); /* not for us */ |
236 |
|
return; |
237 |
+ |
} |
238 |
|
cp = s+10; |
239 |
|
while (*cp) { |
240 |
|
switch (*cp) { |
244 |
|
cp++; |
245 |
|
continue; |
246 |
|
case 'm': /* material name */ |
247 |
< |
cp++; |
220 |
< |
if (*cp != '=') |
247 |
> |
if (*++cp != '=') |
248 |
|
break; |
249 |
< |
cp++; |
249 |
> |
if (!*++cp) |
250 |
> |
break; |
251 |
|
atos(thisillum.matname, MAXSTR, cp); |
252 |
|
cp = sskip(cp); |
253 |
|
if (!(thisillum.flags & IL_DATCLB)) { |
256 |
|
} |
257 |
|
continue; |
258 |
|
case 'f': /* data file name */ |
259 |
< |
cp++; |
232 |
< |
if (*cp != '=') |
259 |
> |
if (*++cp != '=') |
260 |
|
break; |
261 |
< |
cp++; |
262 |
< |
if (*cp == '\0') { |
261 |
> |
if (!*++cp) { |
262 |
> |
strcpy(thisillum.datafile,thisillum.matname); |
263 |
> |
thisillum.dfnum = 0; |
264 |
|
thisillum.flags &= ~IL_DATCLB; |
265 |
|
continue; |
266 |
|
} |
271 |
|
continue; |
272 |
|
case 'i': /* include material */ |
273 |
|
case 'e': /* exclude material */ |
274 |
< |
matselect = (*cp++ == 'i') ? S_ELEM : S_COMPL; |
247 |
< |
if (*cp != '=') |
274 |
> |
if (cp[1] != '=') |
275 |
|
break; |
276 |
< |
cp++; |
276 |
> |
matselect = (*cp == 'i') ? S_ELEM : S_COMPL; |
277 |
> |
cp += 2; |
278 |
|
atos(matcheck, MAXSTR, cp); |
279 |
|
cp = sskip(cp); |
280 |
|
continue; |
287 |
|
matselect = S_NONE; |
288 |
|
continue; |
289 |
|
case 'c': /* color calculation */ |
290 |
< |
cp++; |
263 |
< |
if (*cp != '=') |
290 |
> |
if (*++cp != '=') |
291 |
|
break; |
292 |
< |
cp++; |
266 |
< |
switch (*cp) { |
292 |
> |
switch (*++cp) { |
293 |
|
case 'a': /* average */ |
294 |
< |
thisillum.flags |= IL_COLAVG; |
295 |
< |
thisillum.flags &= ~IL_COLDST; |
294 |
> |
thisillum.flags = (thisillum.flags|IL_COLAVG) |
295 |
> |
& ~IL_COLDST; |
296 |
|
break; |
297 |
|
case 'd': /* distribution */ |
298 |
< |
thisillum.flags |= IL_COLDST; |
273 |
< |
thisillum.flags &= ~IL_COLAVG; |
298 |
> |
thisillum.flags |= (IL_COLDST|IL_COLAVG); |
299 |
|
break; |
300 |
|
case 'n': /* none */ |
301 |
|
thisillum.flags &= ~(IL_COLAVG|IL_COLDST); |
306 |
|
cp = sskip(cp); |
307 |
|
continue; |
308 |
|
case 'd': /* point sample density */ |
309 |
< |
cp++; |
285 |
< |
if (*cp != '=') |
309 |
> |
if (*++cp != '=') |
310 |
|
break; |
311 |
< |
cp++; |
288 |
< |
if (!isintd(cp, " \t\n")) |
311 |
> |
if (!isintd(++cp, " \t\n")) |
312 |
|
break; |
313 |
< |
sampdens = atoi(cp); |
313 |
> |
thisillum.sampdens = atoi(cp); |
314 |
|
cp = sskip(cp); |
315 |
|
continue; |
316 |
|
case 's': /* point super-samples */ |
317 |
< |
cp++; |
295 |
< |
if (*cp != '=') |
317 |
> |
if (*++cp != '=') |
318 |
|
break; |
319 |
< |
cp++; |
298 |
< |
if (!isintd(cp, " \t\n")) |
319 |
> |
if (!isintd(++cp, " \t\n")) |
320 |
|
break; |
321 |
|
thisillum.nsamps = atoi(cp); |
322 |
|
cp = sskip(cp); |
323 |
|
continue; |
324 |
< |
case 'o': /* output file */ |
324 |
> |
case 'l': /* light sources */ |
325 |
|
cp++; |
326 |
< |
if (*cp != '=') |
326 |
> |
if (*cp == '+') |
327 |
> |
thisillum.flags |= IL_LIGHT; |
328 |
> |
else if (*cp == '-') |
329 |
> |
thisillum.flags &= ~IL_LIGHT; |
330 |
> |
else |
331 |
|
break; |
332 |
|
cp++; |
333 |
+ |
continue; |
334 |
+ |
case 'b': /* brightness */ |
335 |
+ |
if (*++cp != '=') |
336 |
+ |
break; |
337 |
+ |
if (!isfltd(++cp, " \t\n")) |
338 |
+ |
break; |
339 |
+ |
thisillum.minbrt = atof(cp); |
340 |
+ |
if (thisillum.minbrt < 0.) |
341 |
+ |
thisillum.minbrt = 0.; |
342 |
+ |
cp = sskip(cp); |
343 |
+ |
continue; |
344 |
+ |
case 'o': /* output file */ |
345 |
+ |
if (*++cp != '=') |
346 |
+ |
break; |
347 |
+ |
if (!*++cp) |
348 |
+ |
break; |
349 |
|
atos(buf, sizeof(buf), cp); |
350 |
|
cp = sskip(cp); |
351 |
|
if (freopen(buf, "w", stdout) == NULL) { |
355 |
|
} |
356 |
|
doneheader = 0; |
357 |
|
continue; |
358 |
+ |
case '!': /* processed file! */ |
359 |
+ |
sprintf(errmsg, "(%s): already processed!", nm); |
360 |
+ |
error(WARNING, errmsg); |
361 |
+ |
matselect = S_NONE; |
362 |
+ |
return; |
363 |
|
} |
364 |
|
opterr: /* skip faulty option */ |
365 |
|
cp = sskip(cp); |
366 |
|
nerrs++; |
367 |
|
} |
368 |
+ |
/* print header? */ |
369 |
+ |
checkhead(); |
370 |
+ |
/* issue warnings? */ |
371 |
|
if (nerrs) { |
372 |
|
sprintf(errmsg, "(%s): %d error(s) in option line:", |
373 |
|
nm, nerrs); |
374 |
|
error(WARNING, errmsg); |
375 |
< |
eputs(s); |
375 |
> |
wputs(s); |
376 |
> |
printf("# %s: the following option line has %d error(s):\n", |
377 |
> |
progname, nerrs); |
378 |
|
} |
379 |
+ |
/* print pure comment */ |
380 |
+ |
printf("# %s", s+2); |
381 |
+ |
} |
382 |
+ |
|
383 |
+ |
|
384 |
+ |
printopts() /* print out option default values */ |
385 |
+ |
{ |
386 |
+ |
printf("m=%-15s\t\t# material name\n", thisillum.matname); |
387 |
+ |
printf("f=%-15s\t\t# data file name\n", thisillum.datafile); |
388 |
+ |
printf("c=n\t\t\t\t# color none\n"); |
389 |
+ |
printf("d=%d\t\t\t\t# density of points\n", thisillum.sampdens); |
390 |
+ |
printf("s=%d\t\t\t\t# samples per point\n", thisillum.nsamps); |
391 |
+ |
printf("b=%f\t\t\t# minimum average brightness\n", thisillum.minbrt); |
392 |
+ |
} |
393 |
+ |
|
394 |
+ |
|
395 |
+ |
printhead(ac, av) /* print out header */ |
396 |
+ |
register int ac; |
397 |
+ |
register char **av; |
398 |
+ |
{ |
399 |
+ |
putchar('#'); |
400 |
+ |
while (ac-- > 0) { |
401 |
+ |
putchar(' '); |
402 |
+ |
fputs(*av++, stdout); |
403 |
+ |
} |
404 |
+ |
fputs("\n#@mkillum !\n", stdout); |
405 |
+ |
} |
406 |
+ |
|
407 |
+ |
|
408 |
+ |
xobject(fp, nm) /* translate an object from fp */ |
409 |
+ |
FILE *fp; |
410 |
+ |
char *nm; |
411 |
+ |
{ |
412 |
+ |
OBJREC thisobj; |
413 |
+ |
char str[MAXSTR]; |
414 |
+ |
int doit; |
415 |
+ |
/* read the object */ |
416 |
+ |
if (fgetword(thisillum.altmat, MAXSTR, fp) == NULL) |
417 |
+ |
goto readerr; |
418 |
+ |
if (fgetword(str, MAXSTR, fp) == NULL) |
419 |
+ |
goto readerr; |
420 |
+ |
/* is it an alias? */ |
421 |
+ |
if (!strcmp(str, ALIASID)) { |
422 |
+ |
if (fgetword(str, MAXSTR, fp) == NULL) |
423 |
+ |
goto readerr; |
424 |
+ |
printf("\n%s %s %s", thisillum.altmat, ALIASID, str); |
425 |
+ |
if (fgetword(str, MAXSTR, fp) == NULL) |
426 |
+ |
goto readerr; |
427 |
+ |
printf("\t%s\n", str); |
428 |
+ |
return; |
429 |
+ |
} |
430 |
+ |
thisobj.omod = OVOID; /* unused field */ |
431 |
+ |
if ((thisobj.otype = otype(str)) < 0) { |
432 |
+ |
sprintf(errmsg, "(%s): unknown type \"%s\"", nm, str); |
433 |
+ |
error(USER, errmsg); |
434 |
+ |
} |
435 |
+ |
if (fgetword(str, MAXSTR, fp) == NULL) |
436 |
+ |
goto readerr; |
437 |
+ |
thisobj.oname = str; |
438 |
+ |
if (readfargs(&thisobj.oargs, fp) != 1) |
439 |
+ |
goto readerr; |
440 |
+ |
thisobj.os = NULL; |
441 |
+ |
/* check for translation */ |
442 |
+ |
switch (matselect) { |
443 |
+ |
case S_NONE: |
444 |
+ |
doit = 0; |
445 |
+ |
break; |
446 |
+ |
case S_ALL: |
447 |
+ |
doit = 1; |
448 |
+ |
break; |
449 |
+ |
case S_ELEM: |
450 |
+ |
doit = !strcmp(thisillum.altmat, matcheck); |
451 |
+ |
break; |
452 |
+ |
case S_COMPL: |
453 |
+ |
doit = strcmp(thisillum.altmat, matcheck); |
454 |
+ |
break; |
455 |
+ |
} |
456 |
+ |
doit = doit && issurface(thisobj.otype); |
457 |
+ |
/* print header? */ |
458 |
+ |
checkhead(); |
459 |
+ |
/* process object */ |
460 |
+ |
if (doit) |
461 |
+ |
(*ofun[thisobj.otype].funp)(&thisobj, &thisillum, &rt, nm); |
462 |
+ |
else |
463 |
+ |
printobj(thisillum.altmat, &thisobj); |
464 |
+ |
/* free arguments */ |
465 |
+ |
freefargs(&thisobj.oargs); |
466 |
+ |
return; |
467 |
+ |
readerr: |
468 |
+ |
sprintf(errmsg, "(%s): error reading scene", nm); |
469 |
+ |
error(USER, errmsg); |
470 |
|
} |