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root/Development/ray/src/rt/source.h

Comparing ray/src/rt/source.h (file contents):
Revision 2.9 by greg, Fri Jun 27 06:53:23 2003 UTC vs.
Revision 2.12 by greg, Wed Dec 31 01:50:02 2003 UTC

#	Line 6 | Line 6
6		*/
7		#ifndef _RAD_SOURCE_H_
8		#define _RAD_SOURCE_H_
9	+
10	+	#include <string.h>
11	+
12		#ifdef __cplusplus
13		extern "C" {
14		#endif
15
16	+	#ifndef  AIMREQT
17		#define  AIMREQT        100             /* required aim success/failure */
18	+	#endif
19	+	#ifndef  SHADCACHE
20	+	#define  SHADCACHE      20              /* shadow cache resolution */
21	+	#endif
22
23		#define  SDISTANT       01              /* source distant flag */
24		#define  SSKIP          02              /* source skip flag */
#	Line 28 | Line 36 | typedef struct {
36		} SPOT;                 /* spotlight */
37
38		typedef struct {
39	+	union {
40	+	struct {
41	+	FVECT   u, v;           /* unit vectors */
42	+	}  f;                   /* flat source indexing */
43	+	struct {
44	+	FVECT   o;              /* origin position */
45	+	RREAL   e1, e2;         /* 1/extent */
46	+	int     ax;             /* major direction */
47	+	}  d;                   /* distant source indexing */
48	+	}  p;                   /* indexing parameters */
49	+	OBJECT  obs[1];         /* cache obstructors (extends struct) */
50	+	}  OBSCACHE;            /* obstructor cache */
51	+
52	+	typedef struct {
53		int  sflags;            /* source flags */
54		FVECT  sloc;            /* direction or position of source */
55		FVECT  ss[3];           /* source dimension vectors, U, V, and W */
56		float  srad;            /* maximum source radius */
57		float  ss2;             /* solid angle or projected area */
58	+	OBJREC  *so;            /* source destination object */
59		struct {
60		float  prox;            /* proximity */
61		SPOT  *s;               /* spot */
#	Line 46 | Line 69 | typedef struct {
69		} sa;                   /* source aiming information */
70		unsigned long
71		ntests, nhits;  /* shadow tests and hits */
72	<	OBJREC  *so;            /* source destination object */
72	>	#ifdef  SHADCACHE
73	>	OBSCACHE  *obscache;    /* obstructor cache */
74	>	#endif
75		}  SRCREC;              /* light source */
76
77		#define MAXSPART        64              /* maximum partitions per source */
#	Line 68 | Line 93 | typedef struct {
93
94		#define initsrcindex(s) ((s)->sn = (s)->sp = -1, (s)->np = 0)
95
96	<	#define clrpart(pt)     bzero((char *)(pt), MAXSPART/2)
96	>	#define clrpart(pt)     memset((char *)(pt), '\0', MAXSPART/2)
97		#define setpart(pt,i,v) ((pt)[(i)>>2] |= (v)<<(((i)&3)<<1))
98		#define spart(pt,pi)    ((pt)[(pi)>>2] >> (((pi)&3)<<1) & 3)
99
#	Line 117 | Line 142 | extern int  nsources;                  /* the number of sources */
142		#define  setsource(s,o)         (*sfun[(o)->otype].of->setsrc)(s,o)
143
144		/* defined in source.c */
145	+	extern OBJREC   *findmaterial(OBJREC *o);
146		extern void     marksources(void);
147		extern void     freesources(void);
148		extern int      srcray(RAY *sr, RAY *r, SRCINDEX *si);
#	Line 125 | Line 151 | extern int     sourcehit(RAY *r);
151		extern void     direct(RAY *r, void (*f)(), char *p);
152		extern void     srcscatter(RAY *r);
153		extern int      m_light(OBJREC *m, RAY *r);
154	+	extern void     srcblocker(RAY *r);
155	+	extern int      srcblocked(RAY *r);
156	+	extern void     freeobscache(SRCREC *s);
157		/* defined in srcsamp.c */
158		extern double   nextssamp(RAY *r, SRCINDEX *si);
159		extern int      skipparts(int ct[3], int sz[3], int pp[2], unsigned char *pt);

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