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#include "otypes.h" |
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#include "otspecial.h" |
16 |
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#include "random.h" |
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+ |
#include "pmap.h" |
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#define MAXCSET ((MAXSET+1)*2-1) /* maximum check set size */ |
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static void checkset(OBJECT *os, OBJECT *cs); |
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38 |
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39 |
< |
extern int |
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> |
int |
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rayorigin( /* start new ray from old one */ |
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RAY *r, |
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int rt, |
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return(-1); |
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if (r->crtype & SHADOW) /* shadow commitment */ |
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return(0); |
110 |
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/* ambient in photon map? */ |
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if (ro != NULL && ro->crtype & AMBIENT) { |
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if (causticPhotonMapping) |
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return(-1); |
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if (photonMapping && rt != TRANS) |
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return(-1); |
116 |
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} |
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if (maxdepth <= 0 && rc != NULL) { /* Russian roulette */ |
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if (minweight <= 0.0) |
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error(USER, "zero ray weight in Russian roulette"); |
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} |
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134 |
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|
135 |
< |
extern void |
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> |
void |
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rayclear( /* clear a ray for (re)evaluation */ |
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RAY *r |
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) |
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} |
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154 |
< |
extern void |
154 |
> |
void |
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raytrace( /* trace a ray and compute its value */ |
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RAY *r |
157 |
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) |
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} |
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174 |
< |
extern void |
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> |
void |
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raycont( /* check for clipped object and continue */ |
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RAY *r |
177 |
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) |
182 |
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} |
183 |
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|
184 |
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|
185 |
< |
extern void |
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> |
void |
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raytrans( /* transmit ray as is */ |
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RAY *r |
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) |
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{ |
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RAY tr; |
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|
192 |
< |
if (rayorigin(&tr, TRANS, r, NULL) == 0) { |
193 |
< |
VCOPY(tr.rdir, r->rdir); |
194 |
< |
rayvalue(&tr); |
195 |
< |
copycolor(r->rcol, tr.rcol); |
196 |
< |
r->rt = r->rot + tr.rt; |
189 |
< |
} |
192 |
> |
rayorigin(&tr, TRANS, r, NULL); /* always continue */ |
193 |
> |
VCOPY(tr.rdir, r->rdir); |
194 |
> |
rayvalue(&tr); |
195 |
> |
copycolor(r->rcol, tr.rcol); |
196 |
> |
r->rt = r->rot + tr.rt; |
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} |
198 |
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|
199 |
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|
200 |
< |
extern int |
200 |
> |
int |
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rayshade( /* shade ray r with material mod */ |
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RAY *r, |
203 |
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int mod |
232 |
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} |
233 |
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|
234 |
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|
235 |
< |
extern void |
235 |
> |
void |
236 |
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rayparticipate( /* compute ray medium participation */ |
237 |
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RAY *r |
238 |
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) |
256 |
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multcolor(r->rcol, ce); /* path extinction */ |
257 |
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if (r->crtype & SHADOW || intens(r->albedo) <= FTINY) |
258 |
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return; /* no scattering */ |
259 |
< |
setcolor(ca, |
260 |
< |
colval(r->albedo,RED)*colval(ambval,RED)*(1.-colval(ce,RED)), |
261 |
< |
colval(r->albedo,GRN)*colval(ambval,GRN)*(1.-colval(ce,GRN)), |
262 |
< |
colval(r->albedo,BLU)*colval(ambval,BLU)*(1.-colval(ce,BLU))); |
263 |
< |
addcolor(r->rcol, ca); /* ambient in scattering */ |
259 |
> |
|
260 |
> |
/* PMAP: indirect inscattering accounted for by volume photons? */ |
261 |
> |
if (!volumePhotonMapping) { |
262 |
> |
setcolor(ca, |
263 |
> |
colval(r->albedo,RED)*colval(ambval,RED)*(1.-colval(ce,RED)), |
264 |
> |
colval(r->albedo,GRN)*colval(ambval,GRN)*(1.-colval(ce,GRN)), |
265 |
> |
colval(r->albedo,BLU)*colval(ambval,BLU)*(1.-colval(ce,BLU))); |
266 |
> |
addcolor(r->rcol, ca); /* ambient in scattering */ |
267 |
> |
} |
268 |
> |
|
269 |
|
srcscatter(r); /* source in scattering */ |
270 |
|
} |
271 |
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|
272 |
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|
273 |
< |
extern void |
273 |
> |
void |
274 |
|
raytexture( /* get material modifiers */ |
275 |
|
RAY *r, |
276 |
|
OBJECT mod |
295 |
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} |
296 |
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|
297 |
|
|
298 |
< |
extern int |
298 |
> |
int |
299 |
|
raymixture( /* mix modifiers */ |
300 |
|
RAY *r, |
301 |
|
OBJECT fore, |
355 |
|
} |
356 |
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|
357 |
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|
358 |
< |
extern double |
358 |
> |
double |
359 |
|
raydist( /* compute (cumulative) ray distance */ |
360 |
|
const RAY *r, |
361 |
|
int flags |
371 |
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} |
372 |
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|
373 |
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|
374 |
< |
extern void |
374 |
> |
void |
375 |
|
raycontrib( /* compute (cumulative) ray contribution */ |
376 |
|
RREAL rc[3], |
377 |
|
const RAY *r, |
397 |
|
} |
398 |
|
|
399 |
|
|
400 |
< |
extern double |
400 |
> |
double |
401 |
|
raynormal( /* compute perturbed normal for ray */ |
402 |
|
FVECT norm, |
403 |
|
RAY *r |
433 |
|
} |
434 |
|
|
435 |
|
|
436 |
< |
extern void |
436 |
> |
void |
437 |
|
newrayxf( /* get new tranformation matrix for ray */ |
438 |
|
RAY *r |
439 |
|
) |
471 |
|
} |
472 |
|
|
473 |
|
|
474 |
< |
extern void |
474 |
> |
void |
475 |
|
flipsurface( /* reverse surface orientation */ |
476 |
|
RAY *r |
477 |
|
) |
486 |
|
} |
487 |
|
|
488 |
|
|
489 |
< |
extern void |
489 |
> |
void |
490 |
|
rayhit( /* standard ray hit test */ |
491 |
|
OBJECT *oset, |
492 |
|
RAY *r |
503 |
|
} |
504 |
|
|
505 |
|
|
506 |
< |
extern int |
506 |
> |
int |
507 |
|
localhit( /* check for hit in the octree */ |
508 |
|
RAY *r, |
509 |
|
CUBE *scene |