31 |
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typedef struct ray { |
32 |
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unsigned long rno; /* unique ray number */ |
33 |
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int rlvl; /* number of reflections for this ray */ |
34 |
< |
float rweight; /* cumulative weight of this ray */ |
34 |
> |
float rweight; /* cumulative weight (for termination) */ |
35 |
> |
COLOR rcoef; /* contribution coefficient w.r.t. parent */ |
36 |
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short rtype; /* ray type */ |
37 |
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short crtype; /* cumulative ray type */ |
38 |
< |
struct ray *parent; /* ray this originated from */ |
38 |
> |
const struct ray *parent; /* ray this originated from */ |
39 |
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FVECT rorg; /* origin of ray */ |
40 |
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FVECT rdir; /* normalized direction of ray */ |
41 |
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double rmax; /* maximum distance (aft clipping plane) */ |
42 |
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int rsrc; /* source we're aiming for */ |
43 |
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OBJECT *clipset; /* set of objects currently clipped */ |
44 |
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OBJECT *newcset; /* next clipset, used for transmission */ |
45 |
< |
void (*revf)(struct ray *); /* evaluation function for this ray */ |
45 |
> |
void (*revf)(struct ray *); /* ray evaluation function */ |
46 |
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void (*hitf)(OBJECT *, struct ray *); /* custom hit test */ |
47 |
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OBJECT robj; /* intersected object number */ |
48 |
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OBJREC *ro; /* intersected object (one with material) */ |
54 |
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RREAL uv[2]; /* local coordinates */ |
55 |
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FVECT pert; /* surface normal perturbation */ |
56 |
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COLOR pcol; /* pattern color */ |
57 |
< |
COLOR rcol; /* returned ray value */ |
57 |
> |
COLOR rcol; /* returned radiance value */ |
58 |
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double rt; /* returned effective ray length */ |
59 |
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COLOR cext; /* medium extinction coefficient */ |
60 |
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COLOR albedo; /* medium scattering albedo */ |
120 |
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extern int ray_pnprocs; /* number of child processes */ |
121 |
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extern int ray_pnidle; /* number of idle processes */ |
122 |
|
|
123 |
< |
#define AMBLLEN 128 /* max. ambient list length */ |
124 |
< |
#define AMBWORD 8 /* average word length */ |
123 |
> |
#ifndef AMBLLEN |
124 |
> |
#define AMBLLEN 512 /* max. ambient list length */ |
125 |
> |
#endif |
126 |
> |
#define AMBWORD 12 /* average word length */ |
127 |
|
|
128 |
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typedef struct { /* rendering parameter holder */ |
129 |
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int do_irrad; |
192 |
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extern void ray_popen(int nadd); |
193 |
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extern void ray_pclose(int nsub); |
194 |
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/* defined in raytrace.c */ |
195 |
< |
extern int rayorigin(RAY *r, RAY *ro, int rt, double rw); |
195 |
> |
extern int rayorigin(RAY *r, int rt, const RAY *ro, const COLOR rc); |
196 |
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extern void rayclear(RAY *r); |
197 |
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extern void raytrace(RAY *r); |
198 |
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extern void rayhit(OBJECT *oset, RAY *r); |
202 |
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extern void rayparticipate(RAY *r); |
203 |
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extern void raytexture(RAY *r, OBJECT mod); |
204 |
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extern int raymixture(RAY *r, OBJECT fore, OBJECT back, double coef); |
205 |
< |
extern double raydist(RAY *r, int flags); |
205 |
> |
extern void raycontrib(COLOR rc, const RAY *r, int flags); |
206 |
> |
extern double raydist(const RAY *r, int flags); |
207 |
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extern double raynormal(FVECT norm, RAY *r); |
208 |
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extern void newrayxf(RAY *r); |
209 |
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extern void flipsurface(RAY *r); |