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* |
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* Include after ray.h |
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*/ |
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#ifndef _RAD_AMBIENT_H_ |
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#define _RAD_AMBIENT_H_ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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|
8 |
– |
#include "copyright.h" |
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|
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/* |
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* Since we've defined our vectors as float below to save space, |
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* watch out for changes in the definitions of VCOPY() and DOT() |
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unsigned long latick; /* last accessed tick */ |
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float pos[3]; /* position in space */ |
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float dir[3]; /* normal direction */ |
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< |
int lvl; /* recursion level of parent ray */ |
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> |
int lvl; /* recursion level of parent ray */ |
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float weight; /* weight of parent ray */ |
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float rad; /* validity radius */ |
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COLOR val; /* computed ambient value */ |
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|
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typedef struct { |
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short t, p; /* theta, phi indices */ |
38 |
< |
COLOR v; /* value sum */ |
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> |
COLOR v; /* division sum (partial) */ |
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float r; /* 1/distance sum */ |
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float k; /* variance for this division */ |
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int n; /* number of subsamples */ |
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} AMBSAMP; /* ambient sample division */ |
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|
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typedef struct { |
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+ |
COLOR acoef; /* division contribution coefficient */ |
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FVECT ux, uy, uz; /* x, y and z axis directions */ |
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short nt, np; /* number of theta and phi directions */ |
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+ |
int ns; /* number of super-samples */ |
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} AMBHEMI; /* ambient sample hemisphere */ |
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|
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extern double maxarad; /* maximum ambient radius */ |
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extern double minarad; /* minimum ambient radius */ |
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|
|
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+ |
#ifndef AVGREFL |
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#define AVGREFL 0.5 /* assumed average reflectance */ |
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+ |
#endif |
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|
|
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#define AMBVALSIZ 75 /* number of bytes in portable AMBVAL struct */ |
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#define AMBMAGIC 557 /* magic number for ambient value files */ |
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#define AMBFMT "Radiance_ambval" /* format id string */ |
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|
|
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#ifdef NOPROTO |
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– |
|
57 |
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extern int divsample(); |
58 |
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extern double doambient(); |
59 |
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extern void inithemi(); |
60 |
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extern void comperrs(); |
61 |
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extern void posgradient(); |
62 |
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extern void dirgradient(); |
63 |
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extern void setambres(); |
64 |
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extern void setambacc(); |
65 |
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extern void setambient(); |
66 |
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extern void ambdone(); |
67 |
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extern void ambnotify(); |
68 |
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extern void ambient(); |
69 |
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extern double sumambient(); |
70 |
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extern double makeambient(); |
71 |
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extern void extambient(); |
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extern int ambsync(); |
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extern void putambmagic(); |
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extern int hasambmagic(); |
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extern int writambval(); |
76 |
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extern int ambvalOK(); |
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extern int readambval(); |
78 |
– |
extern void lookamb(); |
79 |
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extern void writamb(); |
80 |
– |
|
81 |
– |
#else |
82 |
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/* defined in ambcomp.c */ |
83 |
– |
extern int divsample(AMBSAMP *dp, AMBHEMI *h, RAY *r); |
84 |
– |
extern double doambient(COLOR acol, RAY *r, double wt, FVECT pg, FVECT dg); |
85 |
– |
extern void inithemi(AMBHEMI *hp, RAY *r, double wt); |
86 |
– |
extern void comperrs(AMBSAMP *da, AMBHEMI *hp); |
87 |
– |
extern void posgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp); |
88 |
– |
extern void dirgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp); |
62 |
|
/* defined in ambient.c */ |
63 |
|
extern void setambres(int ar); |
64 |
|
extern void setambacc(double newa); |
65 |
|
extern void setambient(void); |
66 |
+ |
extern void multambient(COLOR aval, RAY *r, FVECT nrm); |
67 |
|
extern void ambdone(void); |
68 |
|
extern void ambnotify(OBJECT obj); |
95 |
– |
extern void ambient(COLOR acol, RAY *r, FVECT nrm); |
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); |
73 |
|
extern int ambsync(void); |
74 |
+ |
/* defined in ambcomp.c */ |
75 |
+ |
extern double doambient(COLOR acol, RAY *r, double wt, |
76 |
+ |
FVECT pg, FVECT dg); |
77 |
+ |
extern void inithemi(AMBHEMI *hp, COLOR ac, RAY *r, double wt); |
78 |
+ |
extern int divsample(AMBSAMP *dp, AMBHEMI *h, RAY *r); |
79 |
+ |
extern void comperrs(AMBSAMP *da, AMBHEMI *hp); |
80 |
+ |
extern void posgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp); |
81 |
+ |
extern void dirgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp); |
82 |
|
/* defined in ambio.c */ |
83 |
|
extern void putambmagic(FILE *fp); |
84 |
|
extern int hasambmagic(FILE *fp); |
89 |
|
extern void lookamb(FILE *fp); |
90 |
|
extern void writamb(FILE *fp); |
91 |
|
|
92 |
+ |
|
93 |
+ |
#ifdef __cplusplus |
94 |
+ |
} |
95 |
|
#endif |
96 |
+ |
#endif /* _RAD_AMBIENT_H_ */ |
97 |
+ |
|