diff --git a/Makefile b/Makefile
index f251361..62c5fc6 100644
--- a/Makefile
+++ b/Makefile
@@ -10,8 +10,8 @@ PNG:	essai.png scene.png
 essai.png:		essai.pov Makefile $(POVDEP)
 	povray $(POVOPT) -W800 -H600 -i$< -o$@
 
-CK=130
+CK=306
 scene.png:		scene.pov Makefile $(POVDEP)
-	povray $(POVOPT) -W1920 -H1080 +K${CK} -i$< -o$@
+	povray $(POVOPT) -W3200 -H2400 +K${CK} -i$< -o$@
 
 
diff --git a/plot-timing.sh b/plot-timing.sh
index 693ce76..15d3aa1 100755
--- a/plot-timing.sh
+++ b/plot-timing.sh
@@ -5,7 +5,7 @@ set -ue
 TMPFILE="/dev/shm/plot-timing.tmp"
 IMAGE="timing.png"
 
-tail -3600 WS/mp4.timing | awk '				\
+tail -1800 WS/mp4.timing | awk '				\
 BEGIN	{							\
 	nbrames=360;
 	for (foo=0; foo<nbrames; foo++) {			\
@@ -36,7 +36,7 @@ gnuplot	<< __EOC__
 	set output "timing.png"
 	set grid
 	set xrange [:360]
-	set yrange [:300]
+	set yrange [:240]
 	set title "HexaCone : temps de tracé vs. numéro de séquence"
 	set xlabel "numéro de la trame"
 	set ylabel "temps en secondes"