first video -> big commit :)

GravityField/raytrace.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+set -e
+
+POVOPT=" -q9 +a -W800 -H600 +WT2 -d -v "
+SOURCE="vision.pov"
+TMPF="/dev/shm/gravfield.png"
+
+#		---------------------------------------
+
+une_passe ()
+{
+clock=$1
+
+povray -i${SOURCE} -K${clock} $POVOPT -O${TMPF} 2> pov.stderr
+
+timestamp=$(date | tr '01' 'Ol')
+outfile=$(printf "WS/%05d.png" $clock)
+
+convert	${TMPF}				\
+	-pointsize 14			\
+	-font Courier-Bold		\
+	-fill Orange			\
+	-annotate +10+16  "$timestamp"	\
+	${outfile}
+}
+
+#		---------------------------------------
+
+for foo in $(seq 0 1999)
+do
+	echo '............' $foo
+	une_passe $foo
+done
+
+ffmpeg  -nostdin					\
+	-loglevel warning				\
+	-y -r 30 -f image2 -i WS/%05d.png 		\
+	-metadata artist='---{ tTh }---'		\
+	-metadata title="Experiment on Gravity Field"	\
+	-c:v libx264 -pix_fmt yuv420p			\
+	bar.mp4
+