first video -> big commit :)

GravityField/vision.pov

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+/*
+ *	Visualisation en 3d d'une tentative de champ gravitationnel
+ *
+ *	tTh novembre 2022
+ */
+
+#version 3.7;
+global_settings {
+		ambient_light rgb <0.07, 0.05, 0.05>
+		assumed_gamma 1.0
+		max_trace_level 6
+		}
+
+
+#include  "colors.inc"
+
+// ----------------------------------------------------------------------
+
+#declare HFDIR  = "WS/";
+#declare HFCK   = mod(clock, 2000);
+
+#declare HFNAME = concat(HFDIR, str(HFCK , -5, 0), ".pgm");
+
+#debug concat("- - - - - - - ", HFNAME, "\n")
+
+#declare GravityField = object
+{
+height_field {
+        pgm	HFNAME
+        smooth    // on
+        translate <-0.5, 0, -0.5>
+	}
+texture {
+	pigment { color Gray80 }
+	finish { phong 2.0 }
+	}
+}
+
+object { GravityField scale <4, 1, 4> }
+
+// ----------------------------------------------------------------------
+
+light_source { < -2, 9.3, -7>	color Gray90			}
+light_source { < -5, 9.3, -7>	color Orange*0.75		}
+light_source { < -15, 2.3, 17>	color Blue*0.50			}
+
+// ----------------------------------------------------------------------
+
+camera	{
+	location	<-8, 4, 3>
+	look_at		<0, 0, 0>
+	right		x*image_width/image_height
+	angle		35
+	}
+
+// ----------------------------------------------------------------------