23 |
|
* sort of context, so it is impossible to simultaneously run |
24 |
|
* this library on multiple scenes or in multiple threads. |
25 |
|
* You get one scene and one thread, and if you want more, you |
26 |
< |
* will have to go with the process model used by the programs |
27 |
< |
* gen/mkillum, hd/rholo, and px/pinterp. Finally, unrecoverable |
28 |
< |
* errors result in a call to the application-defined function |
29 |
< |
* quit(). The usual thing to do is to call exit(). |
26 |
> |
* will have to go with the process model defined in raypcalls.c. |
27 |
> |
* Finally, unrecoverable errors result in a call to the application- |
28 |
> |
* defined function quit(). The usual thing to do is to call exit(). |
29 |
|
* You might want to do something else instead, like |
30 |
|
* call setjmp()/longjmp() to bring you back to the calling |
31 |
|
* function for recovery. You may also wish to define your own |
114 |
|
|
115 |
|
void (*trace)() = NULL; /* trace call */ |
116 |
|
|
118 |
– |
extern void ambnotify(); |
117 |
|
void (*addobjnotify[8])() = {ambnotify, NULL}; |
118 |
|
|
119 |
|
int do_irrad = 0; /* compute irradiance? */ |
151 |
|
int ambincl = -1; /* include == 1, exclude == 0 */ |
152 |
|
|
153 |
|
|
154 |
< |
void |
155 |
< |
ray_init(otnm) /* initialize ray-tracing calculation */ |
156 |
< |
char *otnm; |
154 |
> |
extern void |
155 |
> |
ray_init( /* initialize ray-tracing calculation */ |
156 |
> |
char *otnm |
157 |
> |
) |
158 |
|
{ |
159 |
|
if (nobjects > 0) /* free old scene data */ |
160 |
|
ray_done(0); |
173 |
|
/* ready to go... */ |
174 |
|
} |
175 |
|
|
176 |
< |
void |
177 |
< |
ray_trace(r) /* trace a primary ray */ |
178 |
< |
RAY *r; |
176 |
> |
extern void |
177 |
> |
ray_trace( /* trace a primary ray */ |
178 |
> |
RAY *r |
179 |
> |
) |
180 |
|
{ |
181 |
|
rayorigin(r, NULL, PRIMARY, 1.0); |
182 |
|
samplendx++; |
184 |
|
} |
185 |
|
|
186 |
|
|
187 |
< |
void |
188 |
< |
ray_done(freall) /* free ray-tracing data */ |
189 |
< |
int freall; |
187 |
> |
extern void |
188 |
> |
ray_done( /* free ray-tracing data */ |
189 |
> |
int freall |
190 |
> |
) |
191 |
|
{ |
192 |
|
retainfonts = 1; |
193 |
|
ambdone(); |
205 |
|
initurand(0); |
206 |
|
} |
207 |
|
if (nobjects > 0) { |
208 |
< |
sprintf(errmsg, "%d objects left after call to ray_done()", |
208 |
> |
sprintf(errmsg, "%ld objects left after call to ray_done()", |
209 |
|
nobjects); |
210 |
|
error(WARNING, errmsg); |
211 |
|
} |
212 |
|
} |
213 |
|
|
214 |
|
|
215 |
< |
void |
216 |
< |
ray_save(rp) /* save current parameter settings */ |
217 |
< |
RAYPARAMS *rp; |
215 |
> |
extern void |
216 |
> |
ray_save( /* save current parameter settings */ |
217 |
> |
RAYPARAMS *rp |
218 |
> |
) |
219 |
|
{ |
220 |
|
int i, ndx; |
221 |
|
|
263 |
|
} |
264 |
|
|
265 |
|
|
266 |
< |
void |
267 |
< |
ray_restore(rp) /* restore parameter settings */ |
268 |
< |
RAYPARAMS *rp; |
266 |
> |
extern void |
267 |
> |
ray_restore( /* restore parameter settings */ |
268 |
> |
RAYPARAMS *rp |
269 |
> |
) |
270 |
|
{ |
271 |
|
register int i; |
272 |
|
|
331 |
|
} |
332 |
|
|
333 |
|
|
334 |
< |
void |
335 |
< |
ray_defaults(rp) /* get default parameter values */ |
336 |
< |
RAYPARAMS *rp; |
334 |
> |
extern void |
335 |
> |
ray_defaults( /* get default parameter values */ |
336 |
> |
RAYPARAMS *rp |
337 |
> |
) |
338 |
|
{ |
339 |
|
int i; |
340 |
|
|
362 |
|
memset(rp->ambfile, '\0', sizeof(rp->ambfile)); |
363 |
|
rp->ambvwt = 0; |
364 |
|
rp->ambres = 256; |
365 |
< |
rp->ambacc = 0.1; |
365 |
> |
rp->ambacc = 0.15; |
366 |
|
rp->ambdiv = 1024; |
367 |
|
rp->ambssamp = 512; |
368 |
|
rp->ambounce = 0; |