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*/ |
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#ifndef _RAD_RAY_H_ |
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#define _RAD_RAY_H_ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#include "copyright.h" |
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#include "standard.h" |
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#include "octree.h" |
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#include "object.h" |
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| 11 |
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#include "color.h" |
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#ifdef __cplusplus |
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extern "C" { |
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+ |
#endif |
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|
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#define MAXDIM 32 /* maximum number of dimensions */ |
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/* ray type flags */ |
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typedef struct ray { |
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unsigned long rno; /* unique ray number */ |
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int rlvl; /* number of reflections for this ray */ |
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< |
float rweight; /* cumulative weight of this ray */ |
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> |
float rweight; /* cumulative weight (for termination) */ |
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> |
COLOR rcoef; /* contribution coefficient w.r.t. parent */ |
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short rtype; /* ray type */ |
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short crtype; /* cumulative ray type */ |
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struct ray *parent; /* ray this originated from */ |
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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 */ |
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double rmax; /* maximum distance (aft clipping plane) */ |
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int rsrc; /* source we're aiming for */ |
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OBJECT *clipset; /* set of objects currently clipped */ |
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OBJECT *newcset; /* next clipset, used for transmission */ |
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< |
void (*revf)(); /* evaluation function for this ray */ |
| 46 |
< |
void (*hitf)(); /* custom hit test for this traversal */ |
| 45 |
> |
void (*revf)(struct ray *); /* ray evaluation function */ |
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> |
void (*hitf)(OBJECT *, struct ray *); /* custom hit test */ |
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OBJECT robj; /* intersected object number */ |
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OBJREC *ro; /* intersected object (one with material) */ |
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double rot; /* distance to object */ |
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RREAL uv[2]; /* local coordinates */ |
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FVECT pert; /* surface normal perturbation */ |
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COLOR pcol; /* pattern color */ |
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< |
COLOR rcol; /* returned ray value */ |
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> |
COLOR rcol; /* returned radiance value */ |
| 58 |
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double rt; /* returned effective ray length */ |
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COLOR cext; /* medium extinction coefficient */ |
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COLOR albedo; /* medium scattering albedo */ |
| 85 |
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|
| 86 |
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extern int do_irrad; /* compute irradiance? */ |
| 87 |
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|
| 88 |
+ |
extern int rand_samp; /* pure Monte Carlo sampling? */ |
| 89 |
+ |
|
| 90 |
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extern double dstrsrc; /* square source distribution */ |
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extern double shadthresh; /* shadow threshold */ |
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extern double shadcert; /* shadow testing certainty */ |
| 122 |
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extern int ray_pnprocs; /* number of child processes */ |
| 123 |
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extern int ray_pnidle; /* number of idle processes */ |
| 124 |
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|
| 125 |
< |
#define AMBLLEN 128 /* max. ambient list length */ |
| 126 |
< |
#define AMBWORD 8 /* average word length */ |
| 125 |
> |
#ifndef AMBLLEN |
| 126 |
> |
#define AMBLLEN 512 /* max. ambient list length */ |
| 127 |
> |
#endif |
| 128 |
> |
#define AMBWORD 12 /* average word length */ |
| 129 |
|
|
| 130 |
|
typedef struct { /* rendering parameter holder */ |
| 131 |
|
int do_irrad; |
| 132 |
+ |
int rand_samp; |
| 133 |
|
double dstrsrc; |
| 134 |
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double shadthresh; |
| 135 |
|
double shadcert; |
| 166 |
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extern void headclean(void); |
| 167 |
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extern void openheader(void); |
| 168 |
|
extern void dupheader(void); |
| 169 |
+ |
/* defined in persist.c */ |
| 170 |
+ |
extern void persistfile(char *pfn); |
| 171 |
|
extern void pfdetach(void); |
| 172 |
|
extern void pfclean(void); |
| 173 |
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extern void pflock(int lf); |
| 195 |
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extern void ray_popen(int nadd); |
| 196 |
|
extern void ray_pclose(int nsub); |
| 197 |
|
/* defined in raytrace.c */ |
| 198 |
< |
extern int rayorigin(RAY *r, RAY *ro, int rt, double rw); |
| 198 |
> |
extern int rayorigin(RAY *r, int rt, const RAY *ro, const COLOR rc); |
| 199 |
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extern void rayclear(RAY *r); |
| 200 |
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extern void raytrace(RAY *r); |
| 201 |
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extern void rayhit(OBJECT *oset, RAY *r); |
| 205 |
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extern void rayparticipate(RAY *r); |
| 206 |
|
extern void raytexture(RAY *r, OBJECT mod); |
| 207 |
|
extern int raymixture(RAY *r, OBJECT fore, OBJECT back, double coef); |
| 208 |
< |
extern double raydist(RAY *r, int flags); |
| 208 |
> |
extern void raycontrib(double rc[3], const RAY *r, int flags); |
| 209 |
> |
extern double raydist(const RAY *r, int flags); |
| 210 |
|
extern double raynormal(FVECT norm, RAY *r); |
| 211 |
|
extern void newrayxf(RAY *r); |
| 212 |
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extern void flipsurface(RAY *r); |
| 217 |
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/* defined in srcdraw.c */ |
| 218 |
|
extern void drawsources(COLOR *pic[], float *zbf[], |
| 219 |
|
int x0, int xsiz, int y0, int ysiz); |
| 220 |
+ |
extern void init_drawsources(int rad); |
| 221 |
+ |
/* defined in rt/initotypes.c */ |
| 222 |
+ |
extern void initotypes(void); |
| 223 |
|
/* module main procedures */ |
| 224 |
|
extern void rtrace(char *fname); |
| 225 |
+ |
extern char * formstr(int f); |
| 226 |
|
extern void rview(void); |
| 227 |
|
extern void rpict(int seq, char *pout, char *zout, char *prvr); |
| 228 |
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|
