Increased level and max_trace_level. Use union instead of merge (much faster)

geometrie/menger/menger.pov

@@ -1,6 +1,7 @@
 #include "colors.inc"
 #include "glass.inc"
 
+#declare Eps = 1E-6;
 
 #macro menger_level(C1, C2, Lev) 
     #if (Lev > 0) 
@@ -33,14 +34,14 @@
 	#end
     #else
 	box {
-	    C1, C2
+	    C1 + Eps, C2 - Eps
 	}
     #end
 
 #end
 
-merge {
-    menger_level(<-1, -1, -1>, <1, 1, 1>, 2)
+union {
+    menger_level(<-1, -1, -1>, <1, 1, 1>, 4)
     // texture { pigment { color rgb <1, 1, 1> }}
     texture {T_Old_Glass }
     interior {
@@ -53,6 +54,7 @@ merge {
 global_settings {
         assumed_gamma 1.0
         ambient_light rgb<0.5, 0.5, 0.5>
+	max_trace_level 10
 }
 
 light_source {

geometrie/menger/povray.ini

@@ -1,6 +1,5 @@
 +A
-+QR
++Q9
 +HTP
 +fp +w800 +h600
 display_gamma = 2.2
-+D