| 41 |
|
double specthresh = .3; /* specular sampling threshold */ |
| 42 |
|
double specjitter = 1.; /* specular sampling jitter */ |
| 43 |
|
|
| 44 |
+ |
int backvis = 1; /* back face visibility */ |
| 45 |
+ |
|
| 46 |
|
int maxdepth = 4; /* maximum recursion depth */ |
| 47 |
|
double minweight = 1e-2; /* minimum ray weight */ |
| 48 |
|
|
| 228 |
|
getexposure(args); |
| 229 |
|
break; |
| 230 |
|
case 's': /* set a parameter */ |
| 231 |
< |
if (badcom("set")) |
| 231 |
> |
if (badcom("set")) { |
| 232 |
> |
#ifdef SIGTSTP |
| 233 |
> |
if (!badcom("stop")) |
| 234 |
> |
goto dostop; |
| 235 |
> |
#endif |
| 236 |
|
goto commerr; |
| 237 |
+ |
} |
| 238 |
|
setparam(args); |
| 239 |
|
break; |
| 240 |
|
case 'n': /* new picture */ |
| 268 |
|
break; |
| 269 |
|
case 'r': /* rotate/repaint */ |
| 270 |
|
if (badcom("rotate")) { |
| 271 |
< |
if (badcom("repaint")) |
| 272 |
< |
goto commerr; |
| 271 |
> |
if (badcom("repaint")) { |
| 272 |
> |
if (badcom("redraw")) |
| 273 |
> |
goto commerr; |
| 274 |
> |
redraw(); |
| 275 |
> |
break; |
| 276 |
> |
} |
| 277 |
|
getrepaint(args); |
| 278 |
|
break; |
| 279 |
|
} |
| 280 |
|
getrotate(args); |
| 281 |
|
break; |
| 282 |
|
case 'p': /* pivot view */ |
| 283 |
< |
if (badcom("pivot")) |
| 284 |
< |
goto commerr; |
| 283 |
> |
if (badcom("pivot")) { |
| 284 |
> |
if (badcom("pause")) |
| 285 |
> |
goto commerr; |
| 286 |
> |
goto again; |
| 287 |
> |
} |
| 288 |
|
getpivot(args); |
| 289 |
|
break; |
| 290 |
|
case CTRL('R'): /* redraw */ |
| 302 |
|
case CTRL('C'): /* interrupt */ |
| 303 |
|
goto again; |
| 304 |
|
#ifdef SIGTSTP |
| 305 |
< |
case CTRL('Z'): /* stop */ |
| 305 |
> |
case CTRL('Z'):; /* stop */ |
| 306 |
> |
dostop: |
| 307 |
|
devclose(); |
| 308 |
|
kill(0, SIGTSTP); |
| 309 |
|
/* pc stops here */ |
