| 4 |
|
* |
| 5 |
|
* Include after ray.h |
| 6 |
|
*/ |
| 7 |
+ |
|
| 8 |
|
#ifndef _RAD_AMBIENT_H_ |
| 9 |
|
#define _RAD_AMBIENT_H_ |
| 10 |
|
#ifdef __cplusplus |
| 11 |
|
extern "C" { |
| 12 |
|
#endif |
| 13 |
|
|
| 14 |
+ |
#ifndef OLDAMB |
| 15 |
+ |
|
| 16 |
|
/* |
| 17 |
+ |
* Normal and u-vector directions encoded using dircode.c |
| 18 |
+ |
*/ |
| 19 |
+ |
typedef struct ambrec { |
| 20 |
+ |
struct ambrec *next; /* next in list */ |
| 21 |
+ |
unsigned long latick; /* last accessed tick */ |
| 22 |
+ |
float pos[3]; /* position in space */ |
| 23 |
+ |
int32 ndir; /* encoded surface normal */ |
| 24 |
+ |
int32 udir; /* u-vector direction */ |
| 25 |
+ |
int lvl; /* recursion level of parent ray */ |
| 26 |
+ |
float weight; /* weight of parent ray */ |
| 27 |
+ |
float rad[2]; /* anisotropic radii (rad[0] <= rad[1]) */ |
| 28 |
+ |
COLOR val; /* computed ambient value */ |
| 29 |
+ |
float gpos[2]; /* (u,v) gradient wrt. position */ |
| 30 |
+ |
float gdir[2]; /* (u,v) gradient wrt. direction */ |
| 31 |
+ |
uint32 corral; /* potential light leak direction flags */ |
| 32 |
+ |
} AMBVAL; /* ambient value */ |
| 33 |
+ |
|
| 34 |
+ |
typedef struct ambtree { |
| 35 |
+ |
AMBVAL *alist; /* ambient value list */ |
| 36 |
+ |
struct ambtree *kid; /* 8 child nodes */ |
| 37 |
+ |
} AMBTREE; /* ambient octree */ |
| 38 |
+ |
|
| 39 |
+ |
extern double maxarad; /* maximum ambient radius */ |
| 40 |
+ |
extern double minarad; /* minimum ambient radius */ |
| 41 |
+ |
|
| 42 |
+ |
#ifndef AVGREFL |
| 43 |
+ |
#define AVGREFL 0.5 /* assumed average reflectance */ |
| 44 |
+ |
#endif |
| 45 |
+ |
|
| 46 |
+ |
#define AMBVALSIZ 67 /* number of bytes in portable AMBVAL struct */ |
| 47 |
+ |
#define AMBMAGIC 559 /* magic number for ambient value files */ |
| 48 |
+ |
#define AMBFMT "Radiance_ambval" /* format id string */ |
| 49 |
+ |
|
| 50 |
+ |
/* defined in ambient.c */ |
| 51 |
+ |
extern void setambres(int ar); |
| 52 |
+ |
extern void setambacc(double newa); |
| 53 |
+ |
extern void setambient(void); |
| 54 |
+ |
extern void multambient(COLOR aval, RAY *r, FVECT nrm); |
| 55 |
+ |
extern void ambdone(void); |
| 56 |
+ |
extern void ambnotify(OBJECT obj); |
| 57 |
+ |
extern int ambsync(void); |
| 58 |
+ |
/* defined in ambcomp.c */ |
| 59 |
+ |
extern int doambient(COLOR acol, RAY *r, double wt, |
| 60 |
+ |
FVECT uv[2], float rad[2], |
| 61 |
+ |
float gpos[2], float gdir[2], uint32 *crlp); |
| 62 |
+ |
/* defined in ambio.c */ |
| 63 |
+ |
extern void putambmagic(FILE *fp); |
| 64 |
+ |
extern int hasambmagic(FILE *fp); |
| 65 |
+ |
extern int writambval(AMBVAL *av, FILE *fp); |
| 66 |
+ |
extern int readambval(AMBVAL *av, FILE *fp); |
| 67 |
+ |
extern int ambvalOK(AMBVAL *av); |
| 68 |
+ |
|
| 69 |
+ |
#else /* ! NEWAMB */ |
| 70 |
+ |
|
| 71 |
+ |
/* |
| 72 |
|
* Since we've defined our vectors as float below to save space, |
| 73 |
|
* watch out for changes in the definitions of VCOPY() and DOT() |
| 74 |
|
* and don't pass these vectors to fvect routines. |
| 124 |
|
extern void multambient(COLOR aval, RAY *r, FVECT nrm); |
| 125 |
|
extern void ambdone(void); |
| 126 |
|
extern void ambnotify(OBJECT obj); |
| 69 |
– |
extern double sumambient(COLOR acol, RAY *r, FVECT rn, int al, |
| 70 |
– |
AMBTREE *at, FVECT c0, double s); |
| 71 |
– |
extern double makeambient(COLOR acol, RAY *r, FVECT rn, int al); |
| 72 |
– |
extern void extambient(COLOR cr, AMBVAL *ap, FVECT pv, FVECT nv); |
| 127 |
|
extern int ambsync(void); |
| 128 |
|
/* defined in ambcomp.c */ |
| 129 |
|
extern double doambient(COLOR acol, RAY *r, double wt, |
| 139 |
|
extern int writambval(AMBVAL *av, FILE *fp); |
| 140 |
|
extern int ambvalOK(AMBVAL *av); |
| 141 |
|
extern int readambval(AMBVAL *av, FILE *fp); |
| 88 |
– |
/* defined in lookamb.c */ |
| 89 |
– |
extern void lookamb(FILE *fp); |
| 90 |
– |
extern void writamb(FILE *fp); |
| 142 |
|
|
| 143 |
+ |
#endif /* ! NEWAMB */ |
| 144 |
|
|
| 145 |
|
#ifdef __cplusplus |
| 146 |
|
} |
