14 |
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extern "C" { |
15 |
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#endif |
16 |
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|
17 |
+ |
#ifndef RNUMBER |
18 |
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#define RNUMBER unsigned long /* ray counter (>= sizeof pointer) */ |
19 |
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#endif |
20 |
+ |
|
21 |
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#define MAXDIM 32 /* maximum number of dimensions */ |
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|
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/* ray type flags */ |
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/* reflected ray types */ |
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#define RAYREFL (SHADOW|REFLECTED|AMBIENT|SPECULAR) |
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|
35 |
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/* Arrange so double's come first for optimal alignment */ |
36 |
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/* Pointers and long's come second for 64-bit mode */ |
37 |
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/* Int's next (unknown length), then floats, followed by short's & char's */ |
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typedef struct ray { |
32 |
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unsigned long rno; /* unique ray number */ |
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int rlvl; /* number of reflections for this ray */ |
34 |
– |
float rweight; /* cumulative weight (for termination) */ |
35 |
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COLOR rcoef; /* contribution coefficient w.r.t. parent */ |
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short rtype; /* ray type */ |
37 |
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short crtype; /* cumulative ray type */ |
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const struct ray *parent; /* ray this originated from */ |
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FVECT rorg; /* origin of ray */ |
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FVECT rdir; /* normalized direction of ray */ |
41 |
< |
double rmax; /* maximum distance (aft clipping plane) */ |
42 |
< |
int rsrc; /* source we're aiming for */ |
41 |
> |
RREAL rmax; /* maximum distance (aft clipping plane) */ |
42 |
> |
RREAL rot; /* distance to object */ |
43 |
> |
FVECT rop; /* intersection point */ |
44 |
> |
FVECT ron; /* intersection surface normal */ |
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> |
RREAL rod; /* -DOT(rdir, ron) */ |
46 |
> |
RREAL uv[2]; /* local coordinates */ |
47 |
> |
FVECT pert; /* surface normal perturbation */ |
48 |
> |
RREAL rt; /* returned effective ray length */ |
49 |
> |
const struct ray *parent; /* ray this originated from */ |
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OBJECT *clipset; /* set of objects currently clipped */ |
51 |
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OBJECT *newcset; /* next clipset, used for transmission */ |
52 |
+ |
void (*revf)(struct ray *); /* ray evaluation function */ |
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void (*hitf)(OBJECT *, struct ray *); /* custom hit test */ |
46 |
– |
OBJECT robj; /* intersected object number */ |
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OBJREC *ro; /* intersected object (one with material) */ |
48 |
– |
double rot; /* distance to object */ |
49 |
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FVECT rop; /* intersection point */ |
50 |
– |
FVECT ron; /* intersection surface normal */ |
51 |
– |
double rod; /* -DOT(rdir, ron) */ |
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FULLXF *rox; /* object transformation */ |
56 |
< |
RREAL uv[2]; /* local coordinates */ |
57 |
< |
FVECT pert; /* surface normal perturbation */ |
56 |
> |
int *slights; /* list of lights to test for scattering */ |
57 |
> |
RNUMBER rno; /* unique ray number */ |
58 |
> |
int rlvl; /* number of reflections for this ray */ |
59 |
> |
int rsrc; /* source we're aiming for */ |
60 |
> |
float rweight; /* cumulative weight (for termination) */ |
61 |
> |
COLOR rcoef; /* contribution coefficient w.r.t. parent */ |
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COLOR pcol; /* pattern color */ |
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COLOR rcol; /* returned radiance value */ |
57 |
– |
double rt; /* returned effective ray length */ |
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COLOR cext; /* medium extinction coefficient */ |
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COLOR albedo; /* medium scattering albedo */ |
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float gecc; /* scattering eccentricity coefficient */ |
67 |
< |
int *slights; /* list of lights to test for scattering */ |
67 |
> |
OBJECT robj; /* intersected object number */ |
68 |
> |
short rtype; /* ray type */ |
69 |
> |
short crtype; /* cumulative ray type */ |
70 |
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} RAY; |
71 |
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|
72 |
+ |
#define rayvalue(r) (*(r)->revf)(r) |
73 |
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|
74 |
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extern char VersionID[]; /* Radiance version ID string */ |
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|
76 |
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extern CUBE thescene; /* our scene */ |
92 |
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|
93 |
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extern int do_irrad; /* compute irradiance? */ |
94 |
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|
95 |
+ |
extern int rand_samp; /* pure Monte Carlo sampling? */ |
96 |
+ |
|
97 |
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extern double dstrsrc; /* square source distribution */ |
98 |
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extern double shadthresh; /* shadow threshold */ |
99 |
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extern double shadcert; /* shadow testing certainty */ |
136 |
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|
137 |
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typedef struct { /* rendering parameter holder */ |
138 |
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int do_irrad; |
139 |
+ |
int rand_samp; |
140 |
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double dstrsrc; |
141 |
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double shadthresh; |
142 |
|
double shadcert; |
195 |
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extern void ray_defaults(RAYPARAMS *rp); |
196 |
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/* defined in raypcalls.c */ |
197 |
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extern void ray_pinit(char *otnm, int nproc); |
198 |
< |
extern void ray_psend(RAY *r); |
198 |
> |
extern int ray_psend(RAY *r); |
199 |
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extern int ray_pqueue(RAY *r); |
200 |
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extern int ray_presult(RAY *r, int poll); |
201 |
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extern void ray_pdone(int freall); |
202 |
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extern void ray_popen(int nadd); |
203 |
|
extern void ray_pclose(int nsub); |
204 |
+ |
/* defined in ray_fifo.c */ |
205 |
+ |
extern int (*ray_fifo_out)(RAY *r); |
206 |
+ |
extern int ray_fifo_in(RAY *r); |
207 |
+ |
extern int ray_fifo_flush(void); |
208 |
|
/* defined in raytrace.c */ |
209 |
|
extern int rayorigin(RAY *r, int rt, const RAY *ro, const COLOR rc); |
210 |
|
extern void rayclear(RAY *r); |
211 |
< |
extern void rayvalue(RAY *r); |
211 |
> |
extern void raytrace(RAY *r); |
212 |
|
extern void rayhit(OBJECT *oset, RAY *r); |
213 |
|
extern void raycont(RAY *r); |
214 |
|
extern void raytrans(RAY *r); |
216 |
|
extern void rayparticipate(RAY *r); |
217 |
|
extern void raytexture(RAY *r, OBJECT mod); |
218 |
|
extern int raymixture(RAY *r, OBJECT fore, OBJECT back, double coef); |
219 |
< |
extern void raycontrib(COLOR rc, const RAY *r, int flags); |
219 |
> |
extern void raycontrib(double rc[3], const RAY *r, int flags); |
220 |
|
extern double raydist(const RAY *r, int flags); |
221 |
|
extern double raynormal(FVECT norm, RAY *r); |
222 |
|
extern void newrayxf(RAY *r); |
232 |
|
/* defined in rt/initotypes.c */ |
233 |
|
extern void initotypes(void); |
234 |
|
/* module main procedures */ |
235 |
< |
extern void rtrace(char *fname); |
236 |
< |
extern char * formstr(int f); |
235 |
> |
extern void rtrace(char *fname, int nproc); |
236 |
> |
extern char *formstr(int f); |
237 |
|
extern void rview(void); |
238 |
|
extern void rpict(int seq, char *pout, char *zout, char *prvr); |
239 |
|
|
240 |
+ |
#ifdef __FAST_MATH__ |
241 |
+ |
#define checknorm(vn) normalize(vn) |
242 |
+ |
#else |
243 |
+ |
#define checknorm(vn) 1.0 |
244 |
+ |
#endif |
245 |
|
|
246 |
|
#ifdef __cplusplus |
247 |
|
} |