| 4 |
|
* |
| 5 |
|
* Include after ray.h |
| 6 |
|
*/ |
| 7 |
+ |
|
| 8 |
|
#ifndef _RAD_AMBIENT_H_ |
| 9 |
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#define _RAD_AMBIENT_H_ |
| 10 |
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#ifdef __cplusplus |
| 12 |
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#endif |
| 13 |
|
|
| 14 |
|
/* |
| 15 |
< |
* Since we've defined our vectors as float below to save space, |
| 15 |
< |
* watch out for changes in the definitions of VCOPY() and DOT() |
| 16 |
< |
* and don't pass these vectors to fvect routines. |
| 15 |
> |
* Normal and u-vector directions encoded using dircode.c |
| 16 |
|
*/ |
| 17 |
|
typedef struct ambrec { |
| 18 |
< |
unsigned long latick; /* last accessed tick */ |
| 18 |
> |
struct ambrec *next; /* next in list */ |
| 19 |
|
float pos[3]; /* position in space */ |
| 20 |
< |
float dir[3]; /* normal direction */ |
| 21 |
< |
int lvl; /* recursion level of parent ray */ |
| 20 |
> |
int32 ndir; /* encoded surface normal */ |
| 21 |
> |
int32 udir; /* u-vector direction */ |
| 22 |
> |
short lvl; /* recursion level of parent ray */ |
| 23 |
|
float weight; /* weight of parent ray */ |
| 24 |
< |
float rad; /* validity radius */ |
| 25 |
< |
COLOR val; /* computed ambient value */ |
| 26 |
< |
float gpos[3]; /* gradient wrt. position */ |
| 27 |
< |
float gdir[3]; /* gradient wrt. direction */ |
| 28 |
< |
struct ambrec *next; /* next in list */ |
| 24 |
> |
float rad[2]; /* anisotropic radii (rad[0] <= rad[1]) */ |
| 25 |
> |
float gpos[2]; /* (u,v) gradient wrt. position */ |
| 26 |
> |
float gdir[2]; /* (u,v) gradient wrt. direction */ |
| 27 |
> |
uint32 corral; /* potential light leak direction flags */ |
| 28 |
> |
SCOLOR val; /* computed indirect irradiance (last!) */ |
| 29 |
|
} AMBVAL; /* ambient value */ |
| 30 |
|
|
| 31 |
|
typedef struct ambtree { |
| 33 |
|
struct ambtree *kid; /* 8 child nodes */ |
| 34 |
|
} AMBTREE; /* ambient octree */ |
| 35 |
|
|
| 36 |
– |
typedef struct { |
| 37 |
– |
short t, p; /* theta, phi indices */ |
| 38 |
– |
COLOR v; /* value sum */ |
| 39 |
– |
float r; /* 1/distance sum */ |
| 40 |
– |
float k; /* variance for this division */ |
| 41 |
– |
int n; /* number of subsamples */ |
| 42 |
– |
} AMBSAMP; /* ambient sample division */ |
| 43 |
– |
|
| 44 |
– |
typedef struct { |
| 45 |
– |
FVECT ux, uy, uz; /* x, y and z axis directions */ |
| 46 |
– |
short nt, np; /* number of theta and phi directions */ |
| 47 |
– |
} AMBHEMI; /* ambient sample hemisphere */ |
| 48 |
– |
|
| 36 |
|
extern double maxarad; /* maximum ambient radius */ |
| 37 |
|
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 (64+AMB_CNDX[3]) /* number of bytes in portable AMBVAL */ |
| 44 |
> |
#define AMBMAGIC 561 /* magic number for ambient value file */ |
| 45 |
|
#define AMBFMT "Radiance_ambval" /* format id string */ |
| 46 |
|
|
| 58 |
– |
/* defined in ambcomp.c */ |
| 59 |
– |
extern int divsample(AMBSAMP *dp, AMBHEMI *h, RAY *r); |
| 60 |
– |
extern double doambient(COLOR acol, RAY *r, double wt, FVECT pg, FVECT dg); |
| 61 |
– |
extern void inithemi(AMBHEMI *hp, RAY *r, double wt); |
| 62 |
– |
extern void comperrs(AMBSAMP *da, AMBHEMI *hp); |
| 63 |
– |
extern void posgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp); |
| 64 |
– |
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(SCOLOR aval, RAY *r, FVECT nrm); |
| 52 |
|
extern void ambdone(void); |
| 53 |
|
extern void ambnotify(OBJECT obj); |
| 71 |
– |
extern void ambient(COLOR acol, RAY *r, FVECT nrm); |
| 72 |
– |
extern double sumambient(COLOR acol, RAY *r, FVECT rn, int al, |
| 73 |
– |
AMBTREE *at, FVECT c0, double s); |
| 74 |
– |
extern double makeambient(COLOR acol, RAY *r, FVECT rn, int al); |
| 75 |
– |
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(SCOLOR 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 int *AMB_CNDX; /* open ambient file RGBE indices */ |
| 61 |
+ |
extern float *AMB_WLPART; /* open ambient file spectral range */ |
| 62 |
+ |
extern int amb_headline(char *hl, void *p); |
| 63 |
|
extern void putambmagic(FILE *fp); |
| 64 |
|
extern int hasambmagic(FILE *fp); |
| 65 |
|
extern int writambval(AMBVAL *av, FILE *fp); |
| 81 |
– |
extern int ambvalOK(AMBVAL *av); |
| 66 |
|
extern int readambval(AMBVAL *av, FILE *fp); |
| 67 |
< |
/* defined in lookamb.c */ |
| 84 |
< |
extern void lookamb(FILE *fp); |
| 85 |
< |
extern void writamb(FILE *fp); |
| 86 |
< |
|
| 67 |
> |
extern int ambvalOK(AMBVAL *av); |
| 68 |
|
|
| 69 |
|
#ifdef __cplusplus |
| 70 |
|
} |
