--- ray/src/rt/noise3.c	1992/10/02 16:18:50	2.2
+++ ray/src/rt/noise3.c	1993/08/09 10:03:45	2.4
@@ -41,11 +41,12 @@ static char  fnoise_name[] = "fnoise3";
 static char  hermite_name[] = "hermite";
 
 double  *noise3(), fnoise3(), argument(), frand();
+static  interpolate();
 
 static long  xlim[3][2];
 static double  xarg[3];
 
-#define  EPSILON	.0001		/* error allowed in fractal */
+#define  EPSILON	.001		/* error allowed in fractal */
 
 #define  frand3(x,y,z)	frand(17*(x)+23*(y)+29*(z))