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root/radiance/ray/src/rt/ray.h
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Comparing ray/src/rt/ray.h (file contents):
Revision 2.13 by greg, Tue Feb 25 02:47:23 2003 UTC vs.
Revision 2.26 by greg, Thu May 26 06:55:22 2005 UTC

# Line 2 | Line 2
2   /*
3   *  ray.h - header file for routines using rays.
4   */
5 + #ifndef _RAD_RAY_H_
6 + #define _RAD_RAY_H_
7  
6 #include "copyright.h"
7
8   #include  "standard.h"
9
9   #include  "octree.h"
11
10   #include  "object.h"
13
11   #include  "color.h"
12  
13 + #ifdef __cplusplus
14 + extern "C" {
15 + #endif
16 +
17   #define  MAXDIM         32      /* maximum number of dimensions */
18  
19                                  /* ray type flags */
# Line 30 | Line 31
31   typedef struct ray {
32          unsigned long  rno;     /* unique ray number */
33          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          short   rtype;          /* ray type */
37          short   crtype;         /* cumulative ray type */
38 <        struct ray  *parent;    /* ray this originated from */
38 >        const struct ray  *parent;      /* ray this originated from */
39          FVECT   rorg;           /* origin of ray */
40          FVECT   rdir;           /* normalized direction of ray */
41          double  rmax;           /* maximum distance (aft clipping plane) */
42          int     rsrc;           /* source we're aiming for */
43          OBJECT  *clipset;       /* set of objects currently clipped */
44          OBJECT  *newcset;       /* next clipset, used for transmission */
45 <        void    (*revf)();      /* evaluation function for this ray */
45 >        void    (*revf)(struct ray *);  /* ray evaluation function */
46 >        void    (*hitf)(OBJECT *, struct ray *);        /* custom hit test */
47          OBJECT  robj;           /* intersected object number */
48          OBJREC  *ro;            /* intersected object (one with material) */
49          double  rot;            /* distance to object */
# Line 48 | Line 51 | typedef struct ray {
51          FVECT   ron;            /* intersection surface normal */
52          double  rod;            /* -DOT(rdir, ron) */
53          FULLXF  *rox;           /* object transformation */
54 +        RREAL   uv[2];          /* local coordinates */
55          FVECT   pert;           /* surface normal perturbation */
56          COLOR   pcol;           /* pattern color */
57 <        COLOR   rcol;           /* returned ray value */
57 >        COLOR   rcol;           /* returned radiance value */
58          double  rt;             /* returned effective ray length */
59          COLOR   cext;           /* medium extinction coefficient */
60          COLOR   albedo;         /* medium scattering albedo */
# Line 116 | Line 120 | extern int     ambincl;        /* include == 1, exclude == 0 */
120   extern int      ray_pnprocs;    /* number of child processes */
121   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   typedef struct {                /* rendering parameter holder */
129          int     do_irrad;
# Line 153 | Line 159 | typedef struct {               /* rendering parameter holder */
159   #define rpambmod(p,i)   ( (i)>=AMBLLEN||(p)->amblndx[i]<0 ? \
160                            (char *)NULL : (p)->amblval+(p)->amblndx[i] )
161  
156 #ifdef NOPROTO
157
158 extern void     headclean();
159 extern void     openheader();
160 extern void     dupheader();
161 extern void     pfdetach();
162 extern void     pfclean();
163 extern void     pflock();
164 extern void     pfhold();
165 extern void     io_process();
166 extern int      free_objs();
167 extern void     free_objmem();
168 extern int      load_os();
169 extern void     preload_objs();
170 extern void     ray_init();
171 extern void     ray_trace();
172 extern void     ray_done();
173 extern void     ray_save();
174 extern void     ray_restore();
175 extern void     ray_defaults();
176 extern void     ray_pinit();
177 extern void     ray_psend();
178 extern int      ray_pqueue();
179 extern int      ray_presult();
180 extern void     ray_pdone();
181 extern void     ray_popen();
182 extern void     ray_pclose();
183 extern int      rayorigin();
184 extern void     rayclear();
185 extern void     raytrace();
186 extern void     raycont();
187 extern void     raytrans();
188 extern int      rayshade();
189 extern void     rayparticipate();
190 extern int      raymixture();
191 extern double   raydist();
192 extern double   raynormal();
193 extern void     newrayxf();
194 extern void     flipsurface();
195 extern int      localhit();
196 extern int      getrenderopt();
197 extern void     print_rdefaults();
198 extern void     drawsources();
199 extern void     rtrace();
200 extern void     rview();
201 extern void     rpict();
202
203 #else
162                                          /* defined in duphead.c */
163   extern void     headclean(void);
164   extern void     openheader(void);
165   extern void     dupheader(void);
166 +                                        /* defined in persist.c */
167 + extern void persistfile(char *pfn);
168   extern void     pfdetach(void);
169   extern void     pfclean(void);
170   extern void     pflock(int lf);
# Line 232 | Line 192 | extern void    ray_pdone(int freall);
192   extern void     ray_popen(int nadd);
193   extern void     ray_pclose(int nsub);
194                                          /* 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   extern void     rayclear(RAY *r);
197   extern void     raytrace(RAY *r);
198 + extern void     rayhit(OBJECT *oset, RAY *r);
199   extern void     raycont(RAY *r);
200   extern void     raytrans(RAY *r);
201   extern int      rayshade(RAY *r, int mod);
202   extern void     rayparticipate(RAY *r);
203 + extern void     raytexture(RAY *r, OBJECT mod);
204   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   extern double   raynormal(FVECT norm, RAY *r);
208   extern void     newrayxf(RAY *r);
209   extern void     flipsurface(RAY *r);
# Line 251 | Line 214 | extern void    print_rdefaults(void);
214                                          /* defined in srcdraw.c */
215   extern void     drawsources(COLOR *pic[], float *zbf[],
216                          int x0, int xsiz, int y0, int ysiz);
217 + extern void init_drawsources(int rad);
218 +                                        /* defined in rt/initotypes.c */
219 + extern void initotypes(void);
220                                          /* module main procedures */
221   extern void     rtrace(char *fname);
222 + extern char * formstr(int  f);
223   extern void     rview(void);
224   extern void     rpict(int seq, char *pout, char *zout, char *prvr);
225  
226 +
227 + #ifdef __cplusplus
228 + }
229   #endif
230 + #endif /* _RAD_RAY_H_ */
231 +

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