18 |
|
|
19 |
|
#include "random.h" |
20 |
|
|
21 |
+ |
#ifndef WFLUSH |
22 |
+ |
#define WFLUSH 30 /* flush after this many rays */ |
23 |
+ |
#endif |
24 |
|
|
25 |
+ |
|
26 |
|
getrect(s, r) /* get a box */ |
27 |
|
char *s; |
28 |
|
register RECT *r; |
31 |
|
|
32 |
|
if (*s && !strncmp(s, "all", strlen(s))) { |
33 |
|
r->l = r->d = 0; |
34 |
< |
r->r = ourview.hresolu; |
35 |
< |
r->u = ourview.vresolu; |
34 |
> |
r->r = hresolu; |
35 |
> |
r->u = vresolu; |
36 |
|
return(0); |
37 |
|
} |
38 |
|
if (sscanf(s, "%d %d %d %d", &x0, &y0, &x1, &y1) != 4) { |
61 |
|
} |
62 |
|
if (r->l < 0) r->l = 0; |
63 |
|
if (r->d < 0) r->d = 0; |
64 |
< |
if (r->r > ourview.hresolu) r->r = ourview.hresolu; |
65 |
< |
if (r->u > ourview.vresolu) r->u = ourview.vresolu; |
64 |
> |
if (r->r > hresolu) r->r = hresolu; |
65 |
> |
if (r->u > vresolu) r->u = vresolu; |
66 |
|
if (r->l > r->r) r->l = r->r; |
67 |
|
if (r->d > r->u) r->d = r->u; |
68 |
|
return(0); |
93 |
|
(*dev->comout)("Pick view center\n"); |
94 |
|
if ((*dev->getcur)(&x, &y) == ABORT) |
95 |
|
return(-1); |
96 |
< |
rayview(thisray.rorg, thisray.rdir, &ourview, x+.5, y+.5); |
96 |
> |
viewray(thisray.rorg, thisray.rdir, &ourview, |
97 |
> |
(x+.5)/hresolu, (y+.5)/vresolu); |
98 |
|
if (!direc || ourview.type == VT_PAR) { |
99 |
|
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
100 |
|
if (!localhit(&thisray, &thescene)) { |
134 |
|
register PNODE *p; |
135 |
|
int xmin, ymin, xmax, ymax; |
136 |
|
{ |
137 |
+ |
extern long nrays; |
138 |
+ |
static long lastflush = 0; |
139 |
|
static RAY thisray; |
140 |
|
double h, v; |
134 |
– |
register int i; |
141 |
|
|
142 |
|
if (xmax - xmin <= 0 || ymax - ymin <= 0) { /* empty */ |
143 |
|
p->x = xmin; |
146 |
|
return; |
147 |
|
} |
148 |
|
/* jitter ray direction */ |
149 |
< |
p->x = h = xmin + (xmax-xmin)*frandom(); |
150 |
< |
p->y = v = ymin + (ymax-ymin)*frandom(); |
149 |
> |
h = xmin + (xmax-xmin)*frandom(); |
150 |
> |
v = ymin + (ymax-ymin)*frandom(); |
151 |
|
|
152 |
< |
rayview(thisray.rorg, thisray.rdir, &ourview, h, v); |
147 |
< |
|
152 |
> |
viewray(thisray.rorg, thisray.rdir, &ourview, h/hresolu, v/vresolu); |
153 |
|
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
149 |
– |
|
154 |
|
rayvalue(&thisray); |
155 |
|
|
156 |
+ |
p->x = h; |
157 |
+ |
p->y = v; |
158 |
|
copycolor(p->v, thisray.rcol); |
153 |
– |
|
159 |
|
scalecolor(p->v, exposure); |
160 |
|
|
161 |
|
(*dev->paintr)(greyscale?greyof(p->v):p->v, xmin, ymin, xmax, ymax); |
162 |
+ |
|
163 |
+ |
if (dev->flush != NULL && nrays - lastflush >= WFLUSH) { |
164 |
+ |
lastflush = nrays; |
165 |
+ |
(*dev->flush)(); |
166 |
+ |
} |
167 |
|
} |
168 |
|
|
169 |
|
|
171 |
|
{ |
172 |
|
/* free old image */ |
173 |
|
freepkids(&ptrunk); |
174 |
< |
/* set up frame */ |
175 |
< |
if (ourview.hresolu > dev->xsiz || ourview.vresolu > dev->ysiz) |
176 |
< |
newview(&ourview); /* beware recursive loop! */ |
174 |
> |
/* compute resolution */ |
175 |
> |
hresolu = dev->xsiz; |
176 |
> |
vresolu = dev->ysiz; |
177 |
> |
normaspect(viewaspect(&ourview), &dev->pixaspect, &hresolu, &vresolu); |
178 |
|
pframe.l = pframe.d = 0; |
179 |
< |
pframe.r = ourview.hresolu; pframe.u = ourview.vresolu; |
179 |
> |
pframe.r = hresolu; pframe.u = vresolu; |
180 |
|
pdepth = 0; |
181 |
|
/* clear device */ |
182 |
< |
(*dev->clear)(ourview.hresolu, ourview.vresolu); |
182 |
> |
(*dev->clear)(hresolu, vresolu); |
183 |
|
/* get first value */ |
184 |
< |
paint(&ptrunk, 0, 0, ourview.hresolu, ourview.vresolu); |
184 |
> |
paint(&ptrunk, 0, 0, hresolu, vresolu); |
185 |
|
} |
186 |
|
|
187 |
|
|
188 |
|
redraw() /* redraw the image */ |
189 |
|
{ |
190 |
< |
(*dev->clear)(ourview.hresolu, ourview.vresolu); |
190 |
> |
(*dev->clear)(hresolu, vresolu); |
191 |
|
(*dev->comout)("redrawing...\n"); |
192 |
< |
repaint(0, 0, ourview.hresolu, ourview.vresolu); |
192 |
> |
repaint(0, 0, hresolu, vresolu); |
193 |
|
(*dev->comout)("\n"); |
194 |
|
} |
195 |
|
|
202 |
|
reg.l = xmin; reg.r = xmax; |
203 |
|
reg.d = ymin; reg.u = ymax; |
204 |
|
|
205 |
< |
paintrect(&ptrunk, 0, 0, ourview.hresolu, ourview.vresolu, ®); |
205 |
> |
paintrect(&ptrunk, 0, 0, hresolu, vresolu, ®); |
206 |
|
} |
207 |
|
|
208 |
|
|
213 |
|
{ |
214 |
|
int mx, my; |
215 |
|
|
205 |
– |
if (dev->inpready) |
206 |
– |
return; /* break for input */ |
207 |
– |
|
216 |
|
if (xmax - xmin <= 0 || ymax - ymin <= 0) |
217 |
|
return; |
218 |
|
|
350 |
|
{ |
351 |
|
char *err; |
352 |
|
|
345 |
– |
if (vp->hresolu > dev->xsiz || vp->vresolu > dev->ysiz) /* shrink */ |
346 |
– |
if (vp->vresolu * dev->xsiz < vp->hresolu * dev->ysiz) { |
347 |
– |
vp->vresolu = dev->xsiz * vp->vresolu / vp->hresolu; |
348 |
– |
vp->hresolu = dev->xsiz; |
349 |
– |
} else { |
350 |
– |
vp->hresolu = dev->ysiz * vp->hresolu / vp->vresolu; |
351 |
– |
vp->vresolu = dev->ysiz; |
352 |
– |
} |
353 |
|
if ((err = setview(vp)) != NULL) { |
354 |
|
sprintf(errmsg, "view not set - %s", err); |
355 |
|
error(COMMAND, errmsg); |
356 |
< |
} else if (bcmp(vp, &ourview, sizeof(VIEW))) { |
357 |
< |
bcopy(&ourview, &oldview, sizeof(VIEW)); |
358 |
< |
bcopy(vp, &ourview, sizeof(VIEW)); |
359 |
< |
newimage(); /* newimage() calls with vp=&ourview! */ |
356 |
> |
} else if (bcmp((char *)vp, (char *)&ourview, sizeof(VIEW))) { |
357 |
> |
copystruct(&oldview, &ourview); |
358 |
> |
copystruct(&ourview, vp); |
359 |
> |
newimage(); |
360 |
|
} |
361 |
|
} |
362 |
|
|
372 |
|
register int i; |
373 |
|
|
374 |
|
VCOPY(nv.vup, ourview.vup); |
375 |
< |
nv.hresolu = ourview.hresolu; nv.vresolu = ourview.vresolu; |
375 |
> |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
376 |
|
spinvector(nv.vdir, ourview.vdir, ourview.vup, angle*(PI/180.)); |
377 |
|
if (elev != 0.0) { |
378 |
|
fcross(v1, ourview.vup, nv.vdir); |