diff --git a/contexte.inc b/contexte.inc
index c503768..252e94c 100644
--- a/contexte.inc
+++ b/contexte.inc
@@ -6,6 +6,44 @@
 
 /* ------------------------------------------------------------ */
 
+#macro GyroPhare_mat ()
+cylinder {
+	0, y*H_gyro, R_gyro
+	#if (rand(Rng1) < 0.5)
+	  texture { T_Stone25 scale 1+rand(Rng1) }
+	#else
+	  texture { T_Stone6 }
+	#end
+	}
+#end // macro
+
+#macro GyroPhare_lampe ()
+union	{
+	difference {
+		cylinder { 0, y*0.20,    R_gyro }
+		cylinder { y*0.01, y*0.19, R_gyro*0.97 }
+		#local WB = 0.015;
+		box { <-1, 0.03, -WB>, <1, 0.18, WB> }
+		box { <-WB, 0.03, -1>, <WB, 0.18, 1> }
+		#undef WB
+		pigment { color White }
+		rotate y*(0.5-rand(Rng1))*clock
+		}
+	light_source { y*0.10 rgb <0.8, 0.9, 0.999999999> }
+	}
+#end // macro
+
+#macro GyroPhare ()
+union	{
+	object { GyroPhare_mat () }
+	object { GyroPhare_lampe ()
+			// rotate y*rand(Rng1)*clock
+			translate y*(H_gyro+0.02) }
+	}
+#end // macro
+
+/* ------------------------------------------------------------ */
+
 #declare Rhxba = 0.30;
 #declare R2hxba = Rhxba * 0.48;
 
diff --git a/essai.pov b/essai.pov
index b197d62..083fb98 100644
--- a/essai.pov
+++ b/essai.pov
@@ -12,42 +12,6 @@
 #include  "hexabenz.inc"
 
 // =======================================================
-
-#macro GyroPhare_mat ()
-cylinder {
-	0, y*H_gyro, R_gyro
-	#if (rand(Rng1) < 0.5)
-	  texture { T_Stone25 scale 1+rand(Rng1) }
-	#else
-	  texture { T_Stone6 }
-	#end
-	}
-#end // macro
-
-#macro GyroPhare_lampe ()
-union	{
-	difference {
-		cylinder { 0, y*0.20,    R_gyro }
-		cylinder { y*0.01, y*0.19, R_gyro*0.97 }
-		#local WB = 0.015;
-		box { <-1, 0.03, -WB>, <1, 0.18, WB> }
-		box { <-WB, 0.03, -1>, <WB, 0.18, 1> }
-		#undef WB
-		pigment { color White }
-		rotate y*(0.5-rand(Rng1))*clock
-		}
-	light_source { y*0.10 rgb <0.8, 0.9, 0.999999999> }
-	}
-#end // macro
-
-#macro GyroPhare ()
-union	{
-	object { GyroPhare_mat () }
-	object { GyroPhare_lampe ()
-			// rotate y*rand(Rng1)*clock
-			translate y*(H_gyro+0.02) }
-	}
-#end // macro
 // =======================================================
 
 #macro Bubble ()