| 16 |
|
#endif |
| 17 |
|
|
| 18 |
|
#ifndef RNUMBER |
| 19 |
< |
#define RNUMBER unsigned long /* ray counter (>= sizeof pointer) */ |
| 19 |
> |
#define RNUMBER size_t /* ray counter (>= sizeof pointer) */ |
| 20 |
|
#endif |
| 21 |
|
|
| 22 |
< |
#define MAXDIM 32 /* maximum number of dimensions */ |
| 22 |
> |
#define MAXDIM 32 /* maximum number of sampling dimensions */ |
| 23 |
|
|
| 24 |
|
/* ray type flags */ |
| 25 |
|
#define PRIMARY 01 /* original ray */ |
| 26 |
< |
#define SHADOW 02 /* ray to light source */ |
| 26 |
> |
#define RSHADOW 02 /* reflected ray to light source */ |
| 27 |
|
#define REFLECTED 04 /* reflected ray */ |
| 28 |
|
#define REFRACTED 010 /* refracted (bent) ray */ |
| 29 |
|
#define TRANS 020 /* transmitted/transferred ray */ |
| 30 |
< |
#define AMBIENT 040 /* ray scattered for interreflection */ |
| 31 |
< |
#define SPECULAR 0100 /* ray scattered for specular */ |
| 30 |
> |
#define RAMBIENT 040 /* reflected diffuse interreflection */ |
| 31 |
> |
#define RSPECULAR 0100 /* reflected specular */ |
| 32 |
> |
#define TSHADOW 0200 /* transmitted shadow */ |
| 33 |
> |
#define TAMBIENT 0400 /* transmitted ambient */ |
| 34 |
> |
#define TSPECULAR 01000 /* transmitted specular */ |
| 35 |
> |
#define SHADOW (RSHADOW|TSHADOW) |
| 36 |
> |
#define AMBIENT (RAMBIENT|TAMBIENT) |
| 37 |
> |
#define SPECULAR (RSPECULAR|TSPECULAR) |
| 38 |
|
|
| 39 |
|
/* reflected ray types */ |
| 40 |
< |
#define RAYREFL (SHADOW|REFLECTED|AMBIENT|SPECULAR) |
| 40 |
> |
#define RAYREFL (RSHADOW|REFLECTED|RAMBIENT|RSPECULAR) |
| 41 |
|
|
| 42 |
|
/* Arrange so double's come first for optimal alignment */ |
| 43 |
|
/* Pointers and long's come second for 64-bit mode */ |
| 67 |
|
int rsrc; /* source we're aiming for */ |
| 68 |
|
float rweight; /* cumulative weight (for termination) */ |
| 69 |
|
float gecc; /* scattering eccentricity coefficient */ |
| 70 |
< |
COLOR rcoef; /* contribution coefficient w.r.t. parent */ |
| 71 |
< |
COLOR pcol; /* pattern color */ |
| 72 |
< |
COLOR mcol; /* mirrored color contribution */ |
| 73 |
< |
COLOR rcol; /* returned radiance value */ |
| 70 |
> |
SCOLOR rcoef; /* contribution coefficient w.r.t. parent */ |
| 71 |
> |
SCOLOR pcol; /* pattern color */ |
| 72 |
> |
SCOLOR mcol; /* mirrored color contribution */ |
| 73 |
> |
SCOLOR rcol; /* returned radiance value */ |
| 74 |
|
COLOR cext; /* medium extinction coefficient */ |
| 75 |
|
COLOR albedo; /* medium scattering albedo */ |
| 76 |
|
short rflips; /* surface orientation has been reversed */ |
| 81 |
|
|
| 82 |
|
#define rayvalue(r) (*(r)->revf)(r) |
| 83 |
|
|
| 84 |
< |
#define raydistance(r) (bright((r)->mcol) > 0.5*bright((r)->rcol) ? \ |
| 84 |
> |
#define thrudir(r,v) ((r)->rod > 0 ^ DOT((r)->ron,v) > 0) |
| 85 |
> |
|
| 86 |
> |
#define raydistance(r) (pbright((r)->mcol) > 0.5*pbright((r)->rcol) ? \ |
| 87 |
|
(r)->rmt : (r)->rxt) |
| 88 |
|
|
| 89 |
|
#define rayreorient(r) if ((r)->rflips & 1) flipsurface(r); else |
| 100 |
|
extern OBJREC Lamb; /* a Lambertian surface */ |
| 101 |
|
extern OBJREC Aftplane; /* aft clipping object */ |
| 102 |
|
|
| 103 |
< |
extern void (*trace)(); /* global trace reporting callback */ |
| 103 |
> |
extern void (*trace)(RAY*); /* global trace reporting callback */ |
| 104 |
|
|
| 105 |
|
extern int dimlist[]; /* dimension list for distribution */ |
| 106 |
|
extern int ndims; /* number of dimensions so far */ |
| 225 |
|
extern int ray_fifo_in(RAY *r); |
| 226 |
|
extern int ray_fifo_flush(void); |
| 227 |
|
/* defined in raytrace.c */ |
| 228 |
< |
extern int rayorigin(RAY *r, int rt, const RAY *ro, const COLOR rc); |
| 228 |
> |
extern int rayorigin(RAY *r, int rt, const RAY *ro, const SCOLOR rc); |
| 229 |
|
extern void rayclear(RAY *r); |
| 230 |
|
extern void raytrace(RAY *r); |
| 231 |
< |
extern int rayreject(OBJREC *o, RAY *r, double t); |
| 231 |
> |
extern int rayreject(OBJREC *o, RAY *r, double t, double rod); |
| 232 |
|
extern void rayhit(OBJECT *oset, RAY *r); |
| 233 |
|
extern void raycont(RAY *r); |
| 234 |
|
extern void raytrans(RAY *r); |
| 237 |
|
extern void rayparticipate(RAY *r); |
| 238 |
|
extern void raytexture(RAY *r, OBJECT mod); |
| 239 |
|
extern int raymixture(RAY *r, OBJECT fore, OBJECT back, double coef); |
| 240 |
< |
extern void raycontrib(RREAL rc[3], const RAY *r, int flags); |
| 240 |
> |
extern void raycontrib(SCOLOR rc, const RAY *r, int flags); |
| 241 |
|
extern double raydist(const RAY *r, int flags); |
| 242 |
|
extern double raynormal(FVECT norm, RAY *r); |
| 243 |
|
extern void newrayxf(RAY *r); |
| 255 |
|
extern void initotypes(void); |
| 256 |
|
/* module main procedures */ |
| 257 |
|
extern void rtrace(char *fname, int nproc); |
| 258 |
< |
extern char *formstr(int f); |
| 258 |
> |
extern const char *formstr(int f); |
| 259 |
|
extern void rview(void); |
| 260 |
|
extern void rpict(int seq, char *pout, char *zout, char *prvr); |
| 261 |
|
|
