--- ray/src/rt/source.h	2008/12/06 01:08:53	2.18
+++ ray/src/rt/source.h	2023/11/15 18:02:53	2.24
@@ -1,4 +1,4 @@
-/* RCSid $Id: source.h,v 2.18 2008/12/06 01:08:53 greg Exp $ */
+/* RCSid $Id: source.h,v 2.24 2023/11/15 18:02:53 greg Exp $ */
 /*
  *  source.h - header file for ray tracing sources.
  *
@@ -19,6 +19,9 @@ extern "C" {
 #ifndef  SHADCACHE
 #define  SHADCACHE	20		/* shadow cache resolution */
 #endif
+#ifndef  MINSHADCNT
+#define  MINSHADCNT	2		/* test at least this many shadows */
+#endif
 
 #define  SDISTANT	01		/* source distant flag */
 #define  SSKIP		02		/* source skip flag */
@@ -69,7 +72,7 @@ typedef struct {
 	} sa;			/* source aiming information */
 	unsigned long
 		ntests, nhits;	/* shadow tests and hits */
-#ifdef  SHADCACHE
+#if  SHADCACHE
 	OBSCACHE  *obscache;    /* obstructor cache */
 #endif
 	int  sflags;		/* source flags */
@@ -143,13 +146,13 @@ extern int  nsources;			/* the number of sources */
 #define  setsource(s,o)		(*sfun[(o)->otype].of->setsrc)(s,o)
 
 					/* defined in source.c */
-extern OBJREC   *findmaterial(OBJREC *o);
 extern void	marksources(void);
+extern void	distantsources(void);
 extern void	freesources(void);
 extern int	srcray(RAY *sr, RAY *r, SRCINDEX *si);
 extern void	srcvalue(RAY *r);
 extern int	sourcehit(RAY *r);
-typedef void srcdirf_t(COLOR cv, void *np, FVECT ldir, double omega);
+typedef void srcdirf_t(SCOLOR cv, void *np, FVECT ldir, double omega);
 extern void	direct(RAY *r, srcdirf_t *f, void *p);
 extern void	srcscatter(RAY *r);
 extern int	m_light(OBJREC *m, RAY *r);