| 5 |
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* Include after ray.h |
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*/ |
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|
| 8 |
< |
#include "copyright.h" |
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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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|
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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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< |
* and don't pass these vectors to fvect routines. |
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> |
* Normal and u-vector directions encoded using dircode.c |
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*/ |
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typedef struct ambrec { |
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< |
unsigned long latick; /* last accessed tick */ |
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> |
struct ambrec *next; /* next in list */ |
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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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> |
int32 ndir; /* encoded surface normal */ |
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> |
int32 udir; /* u-vector direction */ |
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> |
short 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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> |
float rad[2]; /* anisotropic radii (rad[0] <= rad[1]) */ |
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|
COLOR val; /* computed ambient value */ |
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< |
float gpos[3]; /* gradient wrt. position */ |
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< |
float gdir[3]; /* gradient wrt. direction */ |
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< |
struct ambrec *next; /* next in list */ |
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> |
float gpos[2]; /* (u,v) gradient wrt. position */ |
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> |
float gdir[2]; /* (u,v) gradient wrt. direction */ |
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> |
uint32 corral; /* potential light leak direction flags */ |
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|
} AMBVAL; /* ambient value */ |
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|
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typedef struct ambtree { |
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struct ambtree *kid; /* 8 child nodes */ |
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} AMBTREE; /* ambient octree */ |
| 35 |
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|
| 33 |
– |
typedef struct { |
| 34 |
– |
short t, p; /* theta, phi indices */ |
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– |
COLOR v; /* value sum */ |
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– |
float r; /* 1/distance sum */ |
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– |
float k; /* variance for this division */ |
| 38 |
– |
int n; /* number of subsamples */ |
| 39 |
– |
} AMBSAMP; /* ambient sample division */ |
| 40 |
– |
|
| 41 |
– |
typedef struct { |
| 42 |
– |
FVECT ux, uy, uz; /* x, y and z axis directions */ |
| 43 |
– |
short nt, np; /* number of theta and phi directions */ |
| 44 |
– |
} AMBHEMI; /* ambient sample hemisphere */ |
| 45 |
– |
|
| 36 |
|
extern double maxarad; /* maximum ambient radius */ |
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|
extern double minarad; /* minimum ambient radius */ |
| 38 |
|
|
| 39 |
+ |
#ifndef AVGREFL |
| 40 |
|
#define AVGREFL 0.5 /* assumed average reflectance */ |
| 41 |
+ |
#endif |
| 42 |
|
|
| 43 |
< |
#define AMBVALSIZ 75 /* number of bytes in portable AMBVAL struct */ |
| 44 |
< |
#define AMBMAGIC 557 /* magic number for ambient value files */ |
| 43 |
> |
#define AMBVALSIZ 67 /* number of bytes in portable AMBVAL struct */ |
| 44 |
> |
#define AMBMAGIC 559 /* magic number for ambient value files */ |
| 45 |
|
#define AMBFMT "Radiance_ambval" /* format id string */ |
| 46 |
|
|
| 55 |
– |
#ifdef NOPROTO |
| 56 |
– |
|
| 57 |
– |
extern int divsample(); |
| 58 |
– |
extern double doambient(); |
| 59 |
– |
extern void inithemi(); |
| 60 |
– |
extern void comperrs(); |
| 61 |
– |
extern void posgradient(); |
| 62 |
– |
extern void dirgradient(); |
| 63 |
– |
extern void setambres(); |
| 64 |
– |
extern void setambacc(); |
| 65 |
– |
extern void setambient(); |
| 66 |
– |
extern void ambdone(); |
| 67 |
– |
extern void ambnotify(); |
| 68 |
– |
extern void ambient(); |
| 69 |
– |
extern double sumambient(); |
| 70 |
– |
extern double makeambient(); |
| 71 |
– |
extern void extambient(); |
| 72 |
– |
extern int ambsync(); |
| 73 |
– |
extern void putambmagic(); |
| 74 |
– |
extern int hasambmagic(); |
| 75 |
– |
extern int writambval(); |
| 76 |
– |
extern int ambvalOK(); |
| 77 |
– |
extern int readambval(); |
| 78 |
– |
extern void lookamb(); |
| 79 |
– |
extern void writamb(); |
| 80 |
– |
|
| 81 |
– |
#else |
| 82 |
– |
/* 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); |
| 47 |
|
/* defined in ambient.c */ |
| 48 |
|
extern void setambres(int ar); |
| 49 |
|
extern void setambacc(double newa); |
| 50 |
|
extern void setambient(void); |
| 51 |
+ |
extern void multambient(COLOR aval, RAY *r, FVECT nrm); |
| 52 |
|
extern void ambdone(void); |
| 53 |
|
extern void ambnotify(OBJECT obj); |
| 95 |
– |
extern void ambient(COLOR acol, RAY *r, FVECT nrm); |
| 96 |
– |
extern double sumambient(COLOR acol, RAY *r, FVECT rn, int al, |
| 97 |
– |
AMBTREE *at, FVECT c0, double s); |
| 98 |
– |
extern double makeambient(COLOR acol, RAY *r, FVECT rn, int al); |
| 99 |
– |
extern void extambient(COLOR cr, AMBVAL *ap, FVECT pv, FVECT nv); |
| 54 |
|
extern int ambsync(void); |
| 55 |
+ |
/* defined in ambcomp.c */ |
| 56 |
+ |
extern int doambient(COLOR acol, RAY *r, double wt, |
| 57 |
+ |
FVECT uv[2], float rad[2], |
| 58 |
+ |
float gpos[2], float gdir[2], uint32 *crlp); |
| 59 |
|
/* defined in ambio.c */ |
| 60 |
|
extern void putambmagic(FILE *fp); |
| 61 |
|
extern int hasambmagic(FILE *fp); |
| 62 |
|
extern int writambval(AMBVAL *av, FILE *fp); |
| 105 |
– |
extern int ambvalOK(AMBVAL *av); |
| 63 |
|
extern int readambval(AMBVAL *av, FILE *fp); |
| 64 |
< |
/* defined in lookamb.c */ |
| 108 |
< |
extern void lookamb(FILE *fp); |
| 109 |
< |
extern void writamb(FILE *fp); |
| 64 |
> |
extern int ambvalOK(AMBVAL *av); |
| 65 |
|
|
| 66 |
+ |
#ifdef __cplusplus |
| 67 |
+ |
} |
| 68 |
|
#endif |
| 69 |
+ |
#endif /* _RAD_AMBIENT_H_ */ |
| 70 |
+ |
|
