more work on the main subject

contexte.inc

@@ -9,6 +9,7 @@ height_field {
 	smooth
 	texture {
 		pigment { DarkGreen  }
+		normal { bumps 1 scale 4.2 }
 		finish  { phong 0.333 }
 		}
 	translate <-.5, 0, -.5>
@@ -17,13 +18,13 @@ height_field {
 
 
 #if (0)
-cylinder { 0, <1, 0, 0>, 0.008 pigment { color Red } }
-cylinder { 0, <0, 0, 1>, 0.008 pigment { color Blue } }
+cylinder { 0, <1, 0, 0>, 0.005 pigment { color Red } }
+cylinder { 0, <0, 0, 1>, 0.005 pigment { color Blue } }
 #end
 
 
 light_source {
-	<2, 2.50,  3>	color White
+	<3, 3.50,  2>	color Gray90
 	spotlight
 	radius 12
 	falloff 20
@@ -31,4 +32,11 @@ light_source {
 	point_at <0, 0.95, 0.22222222>
 	}
 
-// light_source { <-6, 7, -4>, rgb <0.81, 0.65, 0.40> }
+light_source {
+	<-5, 5.50, 8>	color White
+	spotlight
+	radius 8
+	falloff 20
+	tightness 5
+	point_at <0, 0.95, -0.22>
+	}