| 46 |
|
RREAL rod; /* -DOT(rdir, ron) */ |
| 47 |
|
RREAL uv[2]; /* local coordinates */ |
| 48 |
|
FVECT pert; /* surface normal perturbation */ |
| 49 |
< |
RREAL rt; /* returned effective ray length */ |
| 49 |
> |
RREAL rmt; /* returned mirrored ray length */ |
| 50 |
> |
RREAL rxt; /* returned unmirrored ray length */ |
| 51 |
|
const struct ray *parent; /* ray this originated from */ |
| 52 |
|
OBJECT *clipset; /* set of objects currently clipped */ |
| 53 |
|
OBJECT *newcset; /* next clipset, used for transmission */ |
| 57 |
|
FULLXF *rox; /* object transformation */ |
| 58 |
|
int *slights; /* list of lights to test for scattering */ |
| 59 |
|
RNUMBER rno; /* unique ray number */ |
| 60 |
< |
int rlvl; /* number of reflections for this ray */ |
| 60 |
> |
OBJECT robj; /* intersected object number */ |
| 61 |
|
int rsrc; /* source we're aiming for */ |
| 62 |
|
float rweight; /* cumulative weight (for termination) */ |
| 63 |
+ |
float gecc; /* scattering eccentricity coefficient */ |
| 64 |
|
COLOR rcoef; /* contribution coefficient w.r.t. parent */ |
| 65 |
|
COLOR pcol; /* pattern color */ |
| 66 |
+ |
COLOR mcol; /* mirrored color contribution */ |
| 67 |
|
COLOR rcol; /* returned radiance value */ |
| 68 |
|
COLOR cext; /* medium extinction coefficient */ |
| 69 |
|
COLOR albedo; /* medium scattering albedo */ |
| 70 |
< |
float gecc; /* scattering eccentricity coefficient */ |
| 71 |
< |
OBJECT robj; /* intersected object number */ |
| 70 |
> |
short rflips; /* surface orientation has been reversed */ |
| 71 |
> |
short rlvl; /* number of reflections for this ray */ |
| 72 |
|
short rtype; /* ray type */ |
| 73 |
|
short crtype; /* cumulative ray type */ |
| 74 |
|
} RAY; |
| 75 |
|
|
| 76 |
|
#define rayvalue(r) (*(r)->revf)(r) |
| 77 |
|
|
| 78 |
+ |
#define raydistance(r) (bright((r)->mcol) > 0.5*bright((r)->rcol) ? \ |
| 79 |
+ |
(r)->rmt : (r)->rxt) |
| 80 |
+ |
|
| 81 |
+ |
#define rayreorient(r) if ((r)->rflips & 1) flipsurface(r); else |
| 82 |
+ |
|
| 83 |
|
extern char VersionID[]; /* Radiance version ID string */ |
| 84 |
|
|
| 85 |
|
extern CUBE thescene; /* our scene */ |
| 97 |
|
extern int ndims; /* number of dimensions so far */ |
| 98 |
|
extern int samplendx; /* index for this sample */ |
| 99 |
|
|
| 92 |
– |
extern int ray_savesiz; /* size of parameter save buffer */ |
| 93 |
– |
|
| 100 |
|
extern int do_irrad; /* compute irradiance? */ |
| 101 |
|
|
| 102 |
|
extern int rand_samp; /* pure Monte Carlo sampling? */ |
| 184 |
|
extern void openheader(void); |
| 185 |
|
extern void dupheader(void); |
| 186 |
|
/* defined in persist.c */ |
| 187 |
< |
extern void persistfile(char *pfn); |
| 187 |
> |
extern void persistfile(char *pfn); |
| 188 |
|
extern void pfdetach(void); |
| 189 |
|
extern void pfclean(void); |
| 190 |
|
extern void pflock(int lf); |
| 219 |
|
extern int rayorigin(RAY *r, int rt, const RAY *ro, const COLOR rc); |
| 220 |
|
extern void rayclear(RAY *r); |
| 221 |
|
extern void raytrace(RAY *r); |
| 222 |
+ |
extern int rayreject(OBJREC *o, RAY *r, double t); |
| 223 |
|
extern void rayhit(OBJECT *oset, RAY *r); |
| 224 |
|
extern void raycont(RAY *r); |
| 225 |
|
extern void raytrans(RAY *r); |
| 226 |
+ |
extern int raytirrad(OBJREC *m, RAY *r); |
| 227 |
|
extern int rayshade(RAY *r, int mod); |
| 228 |
|
extern void rayparticipate(RAY *r); |
| 229 |
|
extern void raytexture(RAY *r, OBJECT mod); |
| 240 |
|
/* defined in srcdraw.c */ |
| 241 |
|
extern void drawsources(COLOR *pic[], float *zbf[], |
| 242 |
|
int x0, int xsiz, int y0, int ysiz); |
| 243 |
< |
extern void init_drawsources(int rad); |
| 243 |
> |
extern void init_drawsources(int rad); |
| 244 |
|
/* defined in rt/initotypes.c */ |
| 245 |
< |
extern void initotypes(void); |
| 245 |
> |
extern void initotypes(void); |
| 246 |
|
/* module main procedures */ |
| 247 |
|
extern void rtrace(char *fname, int nproc); |
| 248 |
|
extern char *formstr(int f); |
