| 11 |
|
extern "C" { |
| 12 |
|
#endif |
| 13 |
|
|
| 14 |
– |
#ifndef OLDAMB |
| 15 |
– |
|
| 14 |
|
/* |
| 15 |
|
* Normal and u-vector directions encoded using dircode.c |
| 16 |
|
*/ |
| 63 |
|
extern int writambval(AMBVAL *av, FILE *fp); |
| 64 |
|
extern int readambval(AMBVAL *av, FILE *fp); |
| 65 |
|
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. |
| 75 |
– |
*/ |
| 76 |
– |
typedef struct ambrec { |
| 77 |
– |
struct ambrec *next; /* next in list */ |
| 78 |
– |
unsigned long latick; /* last accessed tick */ |
| 79 |
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float pos[3]; /* position in space */ |
| 80 |
– |
float dir[3]; /* normal direction */ |
| 81 |
– |
short lvl; /* recursion level of parent ray */ |
| 82 |
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float weight; /* weight of parent ray */ |
| 83 |
– |
float rad; /* validity radius */ |
| 84 |
– |
COLOR val; /* computed ambient value */ |
| 85 |
– |
float gpos[3]; /* gradient wrt. position */ |
| 86 |
– |
float gdir[3]; /* gradient wrt. direction */ |
| 87 |
– |
} AMBVAL; /* ambient value */ |
| 88 |
– |
|
| 89 |
– |
typedef struct ambtree { |
| 90 |
– |
AMBVAL *alist; /* ambient value list */ |
| 91 |
– |
struct ambtree *kid; /* 8 child nodes */ |
| 92 |
– |
} AMBTREE; /* ambient octree */ |
| 93 |
– |
|
| 94 |
– |
typedef struct { |
| 95 |
– |
COLOR v; /* division sum (partial) */ |
| 96 |
– |
float r; /* 1/distance sum */ |
| 97 |
– |
float k; /* variance for this division */ |
| 98 |
– |
int n; /* number of subsamples */ |
| 99 |
– |
unsigned short t, p; /* theta, phi indices */ |
| 100 |
– |
} AMBSAMP; /* ambient sample division */ |
| 101 |
– |
|
| 102 |
– |
typedef struct { |
| 103 |
– |
FVECT ux, uy, uz; /* x, y and z axis directions */ |
| 104 |
– |
COLOR acoef; /* division contribution coefficient */ |
| 105 |
– |
int ns; /* number of super-samples */ |
| 106 |
– |
int nt, np; /* number of theta and phi directions */ |
| 107 |
– |
} AMBHEMI; /* ambient sample hemisphere */ |
| 108 |
– |
|
| 109 |
– |
extern double maxarad; /* maximum ambient radius */ |
| 110 |
– |
extern double minarad; /* minimum ambient radius */ |
| 111 |
– |
|
| 112 |
– |
#ifndef AVGREFL |
| 113 |
– |
#define AVGREFL 0.5 /* assumed average reflectance */ |
| 114 |
– |
#endif |
| 115 |
– |
|
| 116 |
– |
#define AMBVALSIZ 75 /* number of bytes in portable AMBVAL struct */ |
| 117 |
– |
#define AMBMAGIC 557 /* magic number for ambient value files */ |
| 118 |
– |
#define AMBFMT "Radiance_ambval" /* format id string */ |
| 119 |
– |
|
| 120 |
– |
/* defined in ambient.c */ |
| 121 |
– |
extern void setambres(int ar); |
| 122 |
– |
extern void setambacc(double newa); |
| 123 |
– |
extern void setambient(void); |
| 124 |
– |
extern void multambient(COLOR aval, RAY *r, FVECT nrm); |
| 125 |
– |
extern void ambdone(void); |
| 126 |
– |
extern void ambnotify(OBJECT obj); |
| 127 |
– |
extern int ambsync(void); |
| 128 |
– |
/* defined in ambcomp.c */ |
| 129 |
– |
extern double doambient(COLOR acol, RAY *r, double wt, |
| 130 |
– |
FVECT pg, FVECT dg); |
| 131 |
– |
extern void inithemi(AMBHEMI *hp, COLOR ac, RAY *r, double wt); |
| 132 |
– |
extern int divsample(AMBSAMP *dp, AMBHEMI *h, RAY *r); |
| 133 |
– |
extern void comperrs(AMBSAMP *da, AMBHEMI *hp); |
| 134 |
– |
extern void posgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp); |
| 135 |
– |
extern void dirgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp); |
| 136 |
– |
/* defined in ambio.c */ |
| 137 |
– |
extern void putambmagic(FILE *fp); |
| 138 |
– |
extern int hasambmagic(FILE *fp); |
| 139 |
– |
extern int writambval(AMBVAL *av, FILE *fp); |
| 140 |
– |
extern int ambvalOK(AMBVAL *av); |
| 141 |
– |
extern int readambval(AMBVAL *av, FILE *fp); |
| 142 |
– |
|
| 143 |
– |
#endif /* ! NEWAMB */ |
| 66 |
|
|
| 67 |
|
#ifdef __cplusplus |
| 68 |
|
} |
