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

Comparing ray/src/rt/source.h (file contents):
Revision 1.7 by greg, Thu Jun 20 09:03:21 1991 UTC vs.
Revision 1.8 by greg, Thu Jun 20 13:43:36 1991 UTC

#	Line 42 | Line 42 | typedef struct {
42		OBJREC  *so;            /* source destination object */
43		}  SRCREC;              /* light source */
44
45	+	/*
46	+	* Special support functions for sources
47	+	*/
48	+
49	+	/*
50	+	* Virtual source materials must support the following functions:
51	+	*
52	+	*      vproj(pm, op, sp, i)    Compute i'th virtual projection
53	+	*                              of source sp in object op and assign
54	+	*                              the 4x4 transformation matrix pm.
55	+	*                              Return 1 on success, 0 if no i'th projection.
56	+	*
57	+	*      nproj                   The number of projections.  The value of
58	+	*                              i passed to vproj runs from 0 to nproj-1.
59	+	*/
60	+
61		typedef struct {
62	<	FVECT  dir;             /* source direction */
63	<	COLOR  coef;            /* material coefficient */
64	<	COLOR  val;             /* contribution */
49	<	}  CONTRIB;             /* direct contribution */
62	>	int  (*vproj)();        /* project virtual sources */
63	>	int  nproj;             /* number of possible projections */
64	>	} VSMATERIAL;           /* virtual source material functions */
65
66		typedef struct {
67	<	int  sno;               /* source number */
68	<	float  brt;             /* brightness (for comparison) */
69	<	}  CNTPTR;              /* contribution pointer */
67	>	int     (*setsrc)();    /* set light source for object */
68	>	double  (*getpleq)();   /* plane equation for surface */
69	>	double  (*getdisk)();   /* maximum disk for surface */
70	>	} SOBJECT;              /* source object functions */
71
72	+	typedef union {
73	+	VSMATERIAL  *mf;        /* material functions */
74	+	SOBJECT  *of;           /* object functions */
75	+	} SRCFUNC;              /* source functions */
76	+
77	+	extern SRCFUNC  sfun[];                 /* source dispatch table */
78	+
79		extern SRCREC  *source;                 /* our source list */
80		extern int  nsources;                   /* the number of sources */
81
#	Line 61 | Line 84 | extern double  srcray();                /* ray to sour
84		extern SPOT  *makespot();               /* make spotlight */
85
86		extern SRCREC  *newsource();            /* allocate new source */
87	+
88	+	extern double  dstrsrc;                 /* source distribution amount */
89	+	extern double  shadthresh;              /* relative shadow threshold */
90	+	extern double  shadcert;                /* shadow testing certainty */
91	+	extern int  directrelay;                /* maximum number of source relays */

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