1 |
/* Copyright (c) 1993 Regents of the University of California */ |
2 |
|
3 |
#ifndef lint |
4 |
static char SCCSid[] = "$SunId$ LBL"; |
5 |
#endif |
6 |
|
7 |
/* |
8 |
* rv2.c - command routines used in tracing a view. |
9 |
* |
10 |
* 3/24/87 |
11 |
*/ |
12 |
|
13 |
#include "ray.h" |
14 |
|
15 |
#include "octree.h" |
16 |
|
17 |
#include "otypes.h" |
18 |
|
19 |
#include "rpaint.h" |
20 |
|
21 |
#include "resolu.h" |
22 |
|
23 |
#include <ctype.h> |
24 |
|
25 |
#define CTRL(c) ((c)-'@') |
26 |
|
27 |
#ifdef SMLFLT |
28 |
#define sscanvec(s,v) (sscanf(s,"%f %f %f",v,v+1,v+2)==3) |
29 |
#else |
30 |
#define sscanvec(s,v) (sscanf(s,"%lf %lf %lf",v,v+1,v+2)==3) |
31 |
#endif |
32 |
|
33 |
extern char *atos(); |
34 |
|
35 |
extern FILE *popen(); |
36 |
|
37 |
extern char rifname[128]; /* rad input file name */ |
38 |
|
39 |
extern char VersionID[]; |
40 |
extern char *progname; |
41 |
extern char *octname; |
42 |
|
43 |
|
44 |
getframe(s) /* get a new frame */ |
45 |
char *s; |
46 |
{ |
47 |
if (getrect(s, &pframe) < 0) |
48 |
return; |
49 |
pdepth = 0; |
50 |
} |
51 |
|
52 |
|
53 |
getrepaint(s) /* get area and repaint */ |
54 |
char *s; |
55 |
{ |
56 |
RECT box; |
57 |
|
58 |
if (getrect(s, &box) < 0) |
59 |
return; |
60 |
paintrect(&ptrunk, 0, 0, hresolu, vresolu, &box); |
61 |
} |
62 |
|
63 |
|
64 |
getview(s) /* get/show view parameters */ |
65 |
char *s; |
66 |
{ |
67 |
FILE *fp; |
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char buf[128]; |
69 |
char *fname; |
70 |
int change = 0; |
71 |
VIEW nv; |
72 |
|
73 |
while (isspace(*s)) |
74 |
s++; |
75 |
if (*s == '-') { /* command line parameters */ |
76 |
copystruct(&nv, &ourview); |
77 |
if (sscanview(&nv, s)) |
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newview(&nv); |
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else |
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error(COMMAND, "bad view option(s)"); |
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return; |
82 |
} |
83 |
if (sscanf(s, "%s", buf) == 1) { /* write parameters to a file */ |
84 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
85 |
(fp = fopen(fname, "a")) == NULL) { |
86 |
sprintf(errmsg, "cannot open \"%s\"", buf); |
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error(COMMAND, errmsg); |
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return; |
89 |
} |
90 |
fputs(progname, fp); |
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fprintview(&ourview, fp); |
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fputs(sskip(s), fp); |
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putc('\n', fp); |
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fclose(fp); |
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return; |
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} |
97 |
sprintf(buf, "view type (%c): ", ourview.type); |
98 |
(*dev->comout)(buf); |
99 |
(*dev->comin)(buf, NULL); |
100 |
if (buf[0] == CTRL('C')) return; |
101 |
if (buf[0] && buf[0] != ourview.type) { |
102 |
nv.type = buf[0]; |
103 |
change++; |
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} else |
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nv.type = ourview.type; |
106 |
sprintf(buf, "view point (%.6g %.6g %.6g): ", |
107 |
ourview.vp[0], ourview.vp[1], ourview.vp[2]); |
108 |
(*dev->comout)(buf); |
109 |
(*dev->comin)(buf, NULL); |
110 |
if (buf[0] == CTRL('C')) return; |
111 |
if (sscanvec(buf, nv.vp)) |
112 |
change++; |
113 |
else |
114 |
VCOPY(nv.vp, ourview.vp); |
115 |
sprintf(buf, "view direction (%.6g %.6g %.6g): ", |
116 |
ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]); |
117 |
(*dev->comout)(buf); |
118 |
(*dev->comin)(buf, NULL); |
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if (buf[0] == CTRL('C')) return; |
120 |
if (sscanvec(buf, nv.vdir)) |
121 |
change++; |
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else |
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VCOPY(nv.vdir, ourview.vdir); |
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sprintf(buf, "view up (%.6g %.6g %.6g): ", |
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ourview.vup[0], ourview.vup[1], ourview.vup[2]); |
126 |
(*dev->comout)(buf); |
127 |
(*dev->comin)(buf, NULL); |
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if (buf[0] == CTRL('C')) return; |
129 |
if (sscanvec(buf, nv.vup)) |
130 |
change++; |
131 |
else |
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VCOPY(nv.vup, ourview.vup); |
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sprintf(buf, "view horiz and vert size (%.6g %.6g): ", |
134 |
ourview.horiz, ourview.vert); |
135 |
(*dev->comout)(buf); |
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(*dev->comin)(buf, NULL); |
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if (buf[0] == CTRL('C')) return; |
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if (sscanf(buf, "%lf %lf", &nv.horiz, &nv.vert) == 2) |
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change++; |
140 |
else { |
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nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
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} |
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sprintf(buf, "view shift and lift (%.6g %.6g): ", |
144 |
ourview.hoff, ourview.voff); |
145 |
(*dev->comout)(buf); |
146 |
(*dev->comin)(buf, NULL); |
147 |
if (buf[0] == CTRL('C')) return; |
148 |
if (sscanf(buf, "%lf %lf", &nv.hoff, &nv.voff) == 2) |
149 |
change++; |
150 |
else { |
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nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
152 |
} |
153 |
if (change) |
154 |
newview(&nv); |
155 |
} |
156 |
|
157 |
|
158 |
lastview(s) /* return to a previous view */ |
159 |
char *s; |
160 |
{ |
161 |
char buf[128]; |
162 |
char *fname; |
163 |
int success; |
164 |
VIEW nv; |
165 |
|
166 |
if (sscanf(s, "%s", buf) == 1) { /* get parameters from a file */ |
167 |
copystruct(&nv, &stdview); |
168 |
if ((fname = getpath(buf, "", R_OK)) == NULL || |
169 |
(success = viewfile(fname, &nv, NULL)) == -1) { |
170 |
sprintf(errmsg, "cannot open \"%s\"", buf); |
171 |
error(COMMAND, errmsg); |
172 |
return; |
173 |
} |
174 |
if (!success) |
175 |
error(COMMAND, "wrong file format"); |
176 |
else |
177 |
newview(&nv); |
178 |
return; |
179 |
} |
180 |
if (oldview.type == 0) { /* no old view! */ |
181 |
error(COMMAND, "no previous view"); |
182 |
return; |
183 |
} |
184 |
copystruct(&nv, &ourview); |
185 |
copystruct(&ourview, &oldview); |
186 |
copystruct(&oldview, &nv); |
187 |
newimage(); |
188 |
} |
189 |
|
190 |
|
191 |
saveview(s) /* save view to rad file */ |
192 |
char *s; |
193 |
{ |
194 |
char view[64]; |
195 |
char *fname; |
196 |
FILE *fp; |
197 |
|
198 |
if (*atos(view, sizeof(view), s)) { |
199 |
if (isint(view)) { |
200 |
error(COMMAND, "cannot write view by number"); |
201 |
return; |
202 |
} |
203 |
s = sskip(s); |
204 |
} |
205 |
while (isspace(*s)) |
206 |
s++; |
207 |
if (*s) |
208 |
atos(rifname, sizeof(rifname), s); |
209 |
else if (rifname[0] == '\0') { |
210 |
error(COMMAND, "no previous rad file"); |
211 |
return; |
212 |
} |
213 |
if ((fname = getpath(rifname, NULL, 0)) == NULL || |
214 |
(fp = fopen(fname, "a")) == NULL) { |
215 |
sprintf(errmsg, "cannot open \"%s\"", rifname); |
216 |
error(COMMAND, errmsg); |
217 |
return; |
218 |
} |
219 |
fputs("view= ", fp); |
220 |
fputs(view, fp); |
221 |
fprintview(&ourview, fp); |
222 |
putc('\n', fp); |
223 |
fclose(fp); |
224 |
} |
225 |
|
226 |
|
227 |
loadview(s) /* load view from rad file */ |
228 |
char *s; |
229 |
{ |
230 |
char buf[512]; |
231 |
char *fname; |
232 |
FILE *fp; |
233 |
VIEW nv; |
234 |
|
235 |
strcpy(buf, "rad -n -s -V -v "); |
236 |
if (sscanf(s, "%s", buf+strlen(buf)) == 1) |
237 |
s = sskip(s); |
238 |
else |
239 |
strcat(buf, "1"); |
240 |
if (*s) |
241 |
atos(rifname, sizeof(rifname), s); |
242 |
else if (rifname[0] == '\0') { |
243 |
error(COMMAND, "no previous rad file"); |
244 |
return; |
245 |
} |
246 |
if ((fname = getpath(rifname, "", R_OK)) == NULL) { |
247 |
sprintf(errmsg, "cannot access \"%s\"", rifname); |
248 |
error(COMMAND, errmsg); |
249 |
return; |
250 |
} |
251 |
sprintf(buf+strlen(buf), " %s", fname); |
252 |
if ((fp = popen(buf, "r")) == NULL) { |
253 |
error(COMMAND, "cannot run rad"); |
254 |
return; |
255 |
} |
256 |
buf[0] = '\0'; |
257 |
fgets(buf, sizeof(buf), fp); |
258 |
pclose(fp); |
259 |
copystruct(&nv, &stdview); |
260 |
if (!sscanview(&nv, buf)) { |
261 |
error(COMMAND, "rad error -- no such view?"); |
262 |
return; |
263 |
} |
264 |
newview(&nv); |
265 |
} |
266 |
|
267 |
|
268 |
getaim(s) /* aim camera */ |
269 |
char *s; |
270 |
{ |
271 |
double zfact; |
272 |
VIEW nv; |
273 |
|
274 |
if (getinterest(s, 1, nv.vdir, &zfact) < 0) |
275 |
return; |
276 |
nv.type = ourview.type; |
277 |
VCOPY(nv.vp, ourview.vp); |
278 |
VCOPY(nv.vup, ourview.vup); |
279 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
280 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
281 |
zoomview(&nv, zfact); |
282 |
newview(&nv); |
283 |
} |
284 |
|
285 |
|
286 |
getmove(s) /* move camera */ |
287 |
char *s; |
288 |
{ |
289 |
FVECT vc; |
290 |
double mag; |
291 |
|
292 |
if (getinterest(s, 0, vc, &mag) < 0) |
293 |
return; |
294 |
moveview(0.0, 0.0, mag, vc); |
295 |
} |
296 |
|
297 |
|
298 |
getrotate(s) /* rotate camera */ |
299 |
char *s; |
300 |
{ |
301 |
VIEW nv; |
302 |
FVECT v1; |
303 |
double angle, elev, zfact; |
304 |
|
305 |
elev = 0.0; zfact = 1.0; |
306 |
if (sscanf(s, "%lf %lf %lf", &angle, &elev, &zfact) < 1) { |
307 |
error(COMMAND, "missing angle"); |
308 |
return; |
309 |
} |
310 |
nv.type = ourview.type; |
311 |
VCOPY(nv.vp, ourview.vp); |
312 |
VCOPY(nv.vup, ourview.vup); |
313 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
314 |
spinvector(nv.vdir, ourview.vdir, ourview.vup, angle*(PI/180.)); |
315 |
if (elev != 0.0) { |
316 |
fcross(v1, nv.vdir, ourview.vup); |
317 |
normalize(v1); |
318 |
spinvector(nv.vdir, nv.vdir, v1, elev*(PI/180.)); |
319 |
} |
320 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
321 |
zoomview(&nv, zfact); |
322 |
newview(&nv); |
323 |
} |
324 |
|
325 |
|
326 |
getpivot(s) /* pivot viewpoint */ |
327 |
register char *s; |
328 |
{ |
329 |
FVECT vc; |
330 |
double angle, elev, mag; |
331 |
|
332 |
elev = 0.0; |
333 |
if (sscanf(s, "%lf %lf", &angle, &elev) < 1) { |
334 |
error(COMMAND, "missing angle"); |
335 |
return; |
336 |
} |
337 |
if (getinterest(sskip(sskip(s)), 0, vc, &mag) < 0) |
338 |
return; |
339 |
moveview(angle, elev, mag, vc); |
340 |
} |
341 |
|
342 |
|
343 |
getexposure(s) /* get new exposure */ |
344 |
char *s; |
345 |
{ |
346 |
char buf[128]; |
347 |
register char *cp; |
348 |
RECT r; |
349 |
int x, y; |
350 |
register PNODE *p = &ptrunk; |
351 |
int adapt = 0; |
352 |
double e = 1.0; |
353 |
start: |
354 |
for (cp = s; isspace(*cp); cp++) |
355 |
; |
356 |
if (*cp == '@') { |
357 |
adapt++; |
358 |
goto start; |
359 |
} |
360 |
if (*cp == '\0') { /* normalize to point */ |
361 |
if (dev->getcur == NULL) |
362 |
return; |
363 |
(*dev->comout)("Pick point for exposure\n"); |
364 |
if ((*dev->getcur)(&x, &y) == ABORT) |
365 |
return; |
366 |
r.l = r.d = 0; |
367 |
r.r = hresolu; r.u = vresolu; |
368 |
p = findrect(x, y, &ptrunk, &r, -1); |
369 |
} else { |
370 |
if (*cp == '=') { /* absolute setting */ |
371 |
p = NULL; |
372 |
e = 1.0/exposure; |
373 |
for (cp++; isspace(*cp); cp++) |
374 |
; |
375 |
if (*cp == '\0') { /* interactive */ |
376 |
sprintf(buf, "exposure (%f): ", exposure); |
377 |
(*dev->comout)(buf); |
378 |
(*dev->comin)(buf, NULL); |
379 |
for (cp = buf; isspace(*cp); cp++) |
380 |
; |
381 |
if (*cp == '\0') |
382 |
return; |
383 |
} |
384 |
} |
385 |
if (*cp == '+' || *cp == '-') /* f-stops */ |
386 |
e *= pow(2.0, atof(cp)); |
387 |
else /* multiplier */ |
388 |
e *= atof(cp); |
389 |
} |
390 |
if (p != NULL) { /* relative setting */ |
391 |
if (bright(p->v) < 1e-15) { |
392 |
error(COMMAND, "cannot normalize to zero"); |
393 |
return; |
394 |
} |
395 |
if (adapt) |
396 |
e *= 106./pow(1.219+pow(luminance(p->v)/exposure,.4),2.5)/exposure; |
397 |
else |
398 |
e *= 0.5 / bright(p->v); |
399 |
} |
400 |
if (e <= FTINY || fabs(1.0 - e) <= FTINY) |
401 |
return; |
402 |
scalepict(&ptrunk, e); |
403 |
exposure *= e; |
404 |
redraw(); |
405 |
} |
406 |
|
407 |
|
408 |
getparam(str, dsc, typ, ptr) /* get variable from user */ |
409 |
char *str, *dsc; |
410 |
int typ; |
411 |
register union {int i; double d; COLOR C;} *ptr; |
412 |
{ |
413 |
extern char *index(); |
414 |
int i0; |
415 |
double d0, d1, d2; |
416 |
char buf[48]; |
417 |
|
418 |
switch (typ) { |
419 |
case 'i': /* integer */ |
420 |
if (sscanf(str, "%d", &i0) != 1) { |
421 |
(*dev->comout)(dsc); |
422 |
sprintf(buf, " (%d): ", ptr->i); |
423 |
(*dev->comout)(buf); |
424 |
(*dev->comin)(buf, NULL); |
425 |
if (sscanf(buf, "%d", &i0) != 1) |
426 |
return(0); |
427 |
} |
428 |
ptr->i = i0; |
429 |
return(1); |
430 |
case 'r': /* real */ |
431 |
if (sscanf(str, "%lf", &d0) != 1) { |
432 |
(*dev->comout)(dsc); |
433 |
sprintf(buf, " (%.6g): ", ptr->d); |
434 |
(*dev->comout)(buf); |
435 |
(*dev->comin)(buf, NULL); |
436 |
if (sscanf(buf, "%lf", &d0) != 1) |
437 |
return(0); |
438 |
} |
439 |
ptr->d = d0; |
440 |
return(1); |
441 |
case 'b': /* boolean */ |
442 |
if (sscanf(str, "%1s", buf) != 1) { |
443 |
(*dev->comout)(dsc); |
444 |
sprintf(buf, "? (%c): ", ptr->i ? 'y' : 'n'); |
445 |
(*dev->comout)(buf); |
446 |
(*dev->comin)(buf, NULL); |
447 |
if (buf[0] == '\0' || |
448 |
index("yY+1tTnN-0fF", buf[0]) == NULL) |
449 |
return(0); |
450 |
} |
451 |
ptr->i = index("yY+1tT", buf[0]) != NULL; |
452 |
return(1); |
453 |
case 'C': /* color */ |
454 |
if (sscanf(str, "%lf %lf %lf", &d0, &d1, &d2) != 3) { |
455 |
(*dev->comout)(dsc); |
456 |
sprintf(buf, " (%.6g %.6g %.6g): ", |
457 |
colval(ptr->C,RED), |
458 |
colval(ptr->C,GRN), |
459 |
colval(ptr->C,BLU)); |
460 |
(*dev->comout)(buf); |
461 |
(*dev->comin)(buf, NULL); |
462 |
if (sscanf(buf, "%lf %lf %lf", &d0, &d1, &d2) != 3) |
463 |
return(0); |
464 |
} |
465 |
setcolor(ptr->C, d0, d1, d2); |
466 |
return(1); |
467 |
} |
468 |
} |
469 |
|
470 |
|
471 |
setparam(s) /* get/set program parameter */ |
472 |
register char *s; |
473 |
{ |
474 |
extern int psample; |
475 |
extern double maxdiff; |
476 |
extern double minweight; |
477 |
extern int maxdepth; |
478 |
extern double dstrsrc; |
479 |
extern double shadthresh; |
480 |
extern double shadcert; |
481 |
extern COLOR ambval; |
482 |
extern double ambacc; |
483 |
extern int ambres; |
484 |
extern int ambdiv; |
485 |
extern int ambssamp; |
486 |
extern int ambounce; |
487 |
extern int directvis; |
488 |
extern double srcsizerat; |
489 |
extern int do_irrad; |
490 |
extern double specjitter; |
491 |
extern double specthresh; |
492 |
char buf[128]; |
493 |
|
494 |
if (s[0] == '\0') { |
495 |
(*dev->comout)( |
496 |
"aa ab ad ar as av b dc di dj ds dt i lr lw ps pt sj st: "); |
497 |
(*dev->comin)(buf, NULL); |
498 |
s = buf; |
499 |
} |
500 |
switch (s[0]) { |
501 |
case 'l': /* limit */ |
502 |
switch (s[1]) { |
503 |
case 'w': /* weight */ |
504 |
getparam(s+2, "limit weight", 'r', &minweight); |
505 |
break; |
506 |
case 'r': /* reflection */ |
507 |
getparam(s+2, "limit reflection", 'i', &maxdepth); |
508 |
break; |
509 |
default: |
510 |
goto badparam; |
511 |
} |
512 |
break; |
513 |
case 'd': /* direct */ |
514 |
switch (s[1]) { |
515 |
case 'j': /* jitter */ |
516 |
getparam(s+2, "direct jitter", 'r', &dstrsrc); |
517 |
break; |
518 |
case 'c': /* certainty */ |
519 |
getparam(s+2, "direct certainty", 'r', &shadcert); |
520 |
break; |
521 |
case 't': /* threshold */ |
522 |
getparam(s+2, "direct threshold", 'r', &shadthresh); |
523 |
break; |
524 |
case 'v': /* visibility */ |
525 |
getparam(s+2, "direct visibility", |
526 |
'b', &directvis); |
527 |
break; |
528 |
case 's': /* sampling */ |
529 |
getparam(s+2, "direct sampling", 'r', &srcsizerat); |
530 |
break; |
531 |
default: |
532 |
goto badparam; |
533 |
} |
534 |
break; |
535 |
case 'b': /* black and white */ |
536 |
getparam(s+1, "black and white", 'b', &greyscale); |
537 |
break; |
538 |
case 'i': /* irradiance */ |
539 |
getparam(s+1, "irradiance", 'b', &do_irrad); |
540 |
break; |
541 |
case 'a': /* ambient */ |
542 |
switch (s[1]) { |
543 |
case 'v': /* value */ |
544 |
getparam(s+2, "ambient value", 'C', (COLOR *)ambval); |
545 |
break; |
546 |
case 'a': /* accuracy */ |
547 |
if (getparam(s+2, "ambient accuracy", 'r', &ambacc)) |
548 |
setambacc(ambacc); |
549 |
break; |
550 |
case 'd': /* divisions */ |
551 |
getparam(s+2, "ambient divisions", 'i', &ambdiv); |
552 |
break; |
553 |
case 's': /* samples */ |
554 |
getparam(s+2, "ambient super-samples", 'i', &ambssamp); |
555 |
break; |
556 |
case 'b': /* bounces */ |
557 |
getparam(s+2, "ambient bounces", 'i', &ambounce); |
558 |
break; |
559 |
case 'r': |
560 |
if (getparam(s+2, "ambient resolution", 'i', &ambres)) |
561 |
setambres(ambres); |
562 |
break; |
563 |
default: |
564 |
goto badparam; |
565 |
} |
566 |
break; |
567 |
case 'p': /* pixel */ |
568 |
switch (s[1]) { |
569 |
case 's': /* sample */ |
570 |
if (getparam(s+2, "pixel sample", 'i', &psample)) |
571 |
pdepth = 0; |
572 |
break; |
573 |
case 't': /* threshold */ |
574 |
if (getparam(s+2, "pixel threshold", 'r', &maxdiff)) |
575 |
pdepth = 0; |
576 |
break; |
577 |
default: |
578 |
goto badparam; |
579 |
} |
580 |
break; |
581 |
case 's': /* specular */ |
582 |
switch (s[1]) { |
583 |
case 'j': /* jitter */ |
584 |
getparam(s+2, "specular jitter", 'r', &specjitter); |
585 |
break; |
586 |
case 't': /* threshold */ |
587 |
getparam(s+2, "specular threshold", 'r', &specthresh); |
588 |
break; |
589 |
default: |
590 |
goto badparam; |
591 |
} |
592 |
break; |
593 |
case '\0': /* nothing */ |
594 |
break; |
595 |
default:; |
596 |
badparam: |
597 |
*sskip(s) = '\0'; |
598 |
sprintf(errmsg, "%s: unknown variable", s); |
599 |
error(COMMAND, errmsg); |
600 |
break; |
601 |
} |
602 |
} |
603 |
|
604 |
|
605 |
traceray(s) /* trace a single ray */ |
606 |
char *s; |
607 |
{ |
608 |
char buf[128]; |
609 |
int x, y; |
610 |
RAY thisray; |
611 |
|
612 |
if (!sscanvec(s, thisray.rorg) || |
613 |
!sscanvec(sskip(sskip(sskip(s))), thisray.rdir)) { |
614 |
|
615 |
if (dev->getcur == NULL) |
616 |
return; |
617 |
(*dev->comout)("Pick ray\n"); |
618 |
if ((*dev->getcur)(&x, &y) == ABORT) |
619 |
return; |
620 |
|
621 |
if (viewray(thisray.rorg, thisray.rdir, &ourview, |
622 |
(x+.5)/hresolu, (y+.5)/vresolu) < 0) { |
623 |
error(COMMAND, "not on image"); |
624 |
return; |
625 |
} |
626 |
|
627 |
} else if (normalize(thisray.rdir) == 0.0) { |
628 |
error(COMMAND, "zero ray direction"); |
629 |
return; |
630 |
} |
631 |
|
632 |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
633 |
|
634 |
rayvalue(&thisray); |
635 |
|
636 |
if (thisray.ro == NULL) |
637 |
(*dev->comout)("ray hit nothing"); |
638 |
else { |
639 |
sprintf(buf, "ray hit %s %s \"%s\"", |
640 |
thisray.ro->omod == OVOID ? VOIDID : |
641 |
objptr(thisray.ro->omod)->oname, |
642 |
ofun[thisray.ro->otype].funame, |
643 |
thisray.ro->oname); |
644 |
(*dev->comout)(buf); |
645 |
(*dev->comin)(buf, NULL); |
646 |
if (thisray.rot >= FHUGE) |
647 |
(*dev->comout)("at infinity"); |
648 |
else { |
649 |
sprintf(buf, "at (%.6g %.6g %.6g)", thisray.rop[0], |
650 |
thisray.rop[1], thisray.rop[2]); |
651 |
(*dev->comout)(buf); |
652 |
} |
653 |
(*dev->comin)(buf, NULL); |
654 |
sprintf(buf, "value (%.5g %.5g %.5g) (%.1fL)", |
655 |
colval(thisray.rcol,RED), |
656 |
colval(thisray.rcol,GRN), |
657 |
colval(thisray.rcol,BLU), |
658 |
luminance(thisray.rcol)); |
659 |
(*dev->comout)(buf); |
660 |
} |
661 |
(*dev->comin)(buf, NULL); |
662 |
} |
663 |
|
664 |
|
665 |
writepict(s) /* write the picture to a file */ |
666 |
char *s; |
667 |
{ |
668 |
static char buf[128]; |
669 |
char *fname; |
670 |
FILE *fp; |
671 |
COLR *scanline; |
672 |
int y; |
673 |
|
674 |
while (isspace(*s)) |
675 |
s++; |
676 |
if (*s) |
677 |
atos(buf, sizeof(buf), s); |
678 |
else if (buf[0] == '\0') { |
679 |
error(COMMAND, "no file"); |
680 |
return; |
681 |
} |
682 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
683 |
(fp = fopen(fname, "w")) == NULL) { |
684 |
sprintf(errmsg, "cannot open \"%s\"", buf); |
685 |
error(COMMAND, errmsg); |
686 |
return; |
687 |
} |
688 |
#ifdef MSDOS |
689 |
setmode(fileno(fp), O_BINARY); |
690 |
#endif |
691 |
(*dev->comout)("writing \""); |
692 |
(*dev->comout)(fname); |
693 |
(*dev->comout)("\"...\n"); |
694 |
/* write header */ |
695 |
fputs(progname, fp); |
696 |
fprintview(&ourview, fp); |
697 |
if (octname != NULL) |
698 |
fprintf(fp, " %s\n", octname); |
699 |
else |
700 |
putc('\n', fp); |
701 |
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
702 |
if (exposure != 1.0) |
703 |
fputexpos(exposure, fp); |
704 |
if (dev->pixaspect != 1.0) |
705 |
fputaspect(dev->pixaspect, fp); |
706 |
fputformat(COLRFMT, fp); |
707 |
putc('\n', fp); |
708 |
fprtresolu(hresolu, vresolu, fp); |
709 |
|
710 |
scanline = (COLR *)malloc(hresolu*sizeof(COLR)); |
711 |
if (scanline == NULL) { |
712 |
error(COMMAND, "not enough memory!"); |
713 |
fclose(fp); |
714 |
unlink(fname); |
715 |
return; |
716 |
} |
717 |
for (y = vresolu-1; y >= 0; y--) { |
718 |
getpictcolrs(y, scanline, &ptrunk, hresolu, vresolu); |
719 |
if (fwritecolrs(scanline, hresolu, fp) < 0) |
720 |
break; |
721 |
} |
722 |
free((char *)scanline); |
723 |
if (fclose(fp) < 0) |
724 |
error(COMMAND, "write error"); |
725 |
} |