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Comparing ray/src/rt/ambient.h (file contents):
Revision 2.1 by greg, Tue Nov 12 17:10:27 1991 UTC vs.
Revision 2.26 by greg, Mon Mar 7 17:52:14 2022 UTC

#	Line 1 | Line 1
1	<	/* Copyright (c) 1991 Regents of the University of California */
2	<
3	<	/* SCCSid "$SunId$ LBL" */
4	<
1	>	/* RCSid $Id$ */
2		/*
3		* Common definitions for interreflection routines.
4	+	*
5	+	* Include after ray.h
6		*/
7
8	+	#ifndef _RAD_AMBIENT_H_
9	+	#define _RAD_AMBIENT_H_
10	+	#ifdef __cplusplus
11	+	extern "C" {
12	+	#endif
13	+
14		/*
15	<	* Since we've defined our vectors as float below to save space,
11	<	* watch out for changes in the definitions of VCOPY() and DOT()
12	<	* 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	+	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 */
24	>	float  rad[2];          /* anisotropic radii (rad[0] <= rad[1]) */
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 */
26	>	float  gpos[2];         /* (u,v) gradient wrt. position */
27	>	float  gdir[2];         /* (u,v) gradient wrt. direction */
28	>	uint32  corral;         /* potential light leak direction flags */
29		}  AMBVAL;                      /* ambient value */
30
31	<	extern COLOR  ambval;           /* global ambient component */
32	<	extern double  ambacc;          /* ambient accuracy */
33	<	extern int  ambres;             /* ambient resolution */
34	<	extern int  ambdiv;             /* number of divisions for calculation */
35	<	extern int  ambssamp;           /* number of super-samples */
31	<	extern int  ambounce;           /* number of ambient bounces */
32	<	extern char  *amblist[];        /* ambient include/exclude list */
33	<	extern int  ambincl;            /* include == 1, exclude == 0 */
31	>	typedef struct ambtree {
32	>	AMBVAL  *alist;         /* ambient value list */
33	>	struct ambtree  *kid;   /* 8 child nodes */
34	>	}  AMBTREE;                     /* ambient octree */
35	>
36		extern double  maxarad;         /* maximum ambient radius */
37		extern double  minarad;         /* minimum ambient radius */
38
39	<	extern double  sumambient(), doambient(), makeambient();
38	<
39	>	#ifndef AVGREFL
40		#define  AVGREFL        0.5     /* assumed average reflectance */
41	+	#endif
42	+
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	+
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);
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);
63	+	extern int      readambval(AMBVAL *av, FILE *fp);
64	+	extern int      ambvalOK(AMBVAL *av);
65	+
66	+	#ifdef __cplusplus
67	+	}
68	+	#endif
69	+	#endif /* _RAD_AMBIENT_H_ */
70	+

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