7 |
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|
8 |
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#include "ray.h" |
9 |
|
#include "otypes.h" |
10 |
+ |
#include "bsdf.h" |
11 |
+ |
#include "random.h" |
12 |
|
|
13 |
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#ifdef __cplusplus |
14 |
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extern "C" { |
19 |
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#define IL_COLAVG 0x4 /* use average color */ |
20 |
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#define IL_DATCLB 0x8 /* OK to clobber data file */ |
21 |
|
|
20 |
– |
/* up directions */ |
21 |
– |
typedef enum { |
22 |
– |
UDzneg=-3, |
23 |
– |
UDyneg=-2, |
24 |
– |
UDxneg=-1, |
25 |
– |
UDunknown=0, |
26 |
– |
UDxpos=1, |
27 |
– |
UDypos=2, |
28 |
– |
UDzpos=3 |
29 |
– |
} UpDir; |
30 |
– |
|
31 |
– |
struct BSDF_data { |
32 |
– |
double om_scale; /* maximum solid angle (sr/256) */ |
33 |
– |
int ninc; /* number of incoming directions */ |
34 |
– |
int32 *inc_dir; /* incoming direction codes */ |
35 |
– |
BYTE *inc_rad; /* incoming radians to neighbor */ |
36 |
– |
int nout; /* number of outgoing directions */ |
37 |
– |
int32 *out_dir; /* outgoing direction codes */ |
38 |
– |
BYTE *out_rad; /* outgoing radians to neighbor */ |
39 |
– |
float *bsdf; /* scattering distribution data */ |
40 |
– |
}; /* bidirectional scattering distrib. func. */ |
41 |
– |
|
22 |
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struct illum_args { |
23 |
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int flags; /* flags from list above */ |
24 |
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UpDir udir; /* up direction */ |
25 |
+ |
double thick; /* object thickness */ |
26 |
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char matname[MAXSTR]; /* illum material name */ |
27 |
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char datafile[MAXSTR]; /* distribution data file name */ |
28 |
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int dfnum; /* data file number */ |
35 |
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COLOR col; /* computed average color */ |
36 |
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}; /* illum options */ |
37 |
|
|
38 |
< |
#define getBSDF_incvec(v,b,i) decodedir(v, (b)->inc_dir[i]) |
39 |
< |
#define getBSDF_outvec(v,b,o) decodedir(v, (b)->out_dir[o]) |
59 |
< |
#define getBSDF_incrad(b,i) ((b)->om_scale*((b)->inc_rad[i] + .5)); |
60 |
< |
#define getBSDF_outrad(b,o) ((b)->om_scale*((b)->out_rad[o] + .5)); |
61 |
< |
#define BSDF_data(b,i,o) (b)->bsdf[(o)*(b)->ninc + (i)] |
38 |
> |
extern void redistribute(struct BSDF_data *b, int nalt, int nazi, |
39 |
> |
FVECT u, FVECT v, FVECT w, MAT4 xm); |
40 |
|
|
63 |
– |
extern struct BSDF_data *load_BSDF(char *fname); |
64 |
– |
extern void free_BSDF(struct BSDF_data *b); |
65 |
– |
extern void r_BSDF_incvec(FVECT v, struct BSDF_data *b, int i, |
66 |
– |
double rv, MAT4 xm); |
67 |
– |
extern void r_BSDF_outvec(FVECT v, struct BSDF_data *b, int o, |
68 |
– |
double rv, MAT4 xm); |
69 |
– |
|
41 |
|
extern void printobj(char *mod, OBJREC *obj); |
42 |
|
extern int average(struct illum_args *il, COLORV *da, int n); |
43 |
|
extern void flatout(struct illum_args *il, COLORV *da, int n, int m, |
45 |
|
extern void illumout(struct illum_args *il, OBJREC *ob); |
46 |
|
extern void roundout(struct illum_args *il, COLORV *da, int n, int m); |
47 |
|
|
48 |
+ |
extern void newdist(int siz); |
49 |
+ |
extern int process_ray(RAY *r, int rv); |
50 |
+ |
extern void raysamp(int ndx, FVECT org, FVECT dir); |
51 |
+ |
extern void rayclean(void); |
52 |
+ |
|
53 |
+ |
extern void flatdir(FVECT dv, double alt, double azi); |
54 |
+ |
extern int flatindex(FVECT dv, int nalt, int nazi); |
55 |
+ |
|
56 |
|
extern int my_default(OBJREC *, struct illum_args *, char *); |
57 |
|
extern int my_face(OBJREC *, struct illum_args *, char *); |
58 |
|
extern int my_sphere(OBJREC *, struct illum_args *, char *); |
59 |
|
extern int my_ring(OBJREC *, struct illum_args *, char *); |
60 |
+ |
|
61 |
+ |
extern COLORV * distarr; /* distribution array */ |
62 |
+ |
extern int distsiz; |
63 |
+ |
extern COLORV * direct_discount; /* amount to take off direct */ |
64 |
|
|
65 |
|
extern char *progname; |
66 |
|
|