melt \
"+hello~world.txt" align=1 out=1000 \
-track "+hello~world.txt" align=1 out=1000 fgcolour=#000000 \
-track watermark1.png out=1000 \
-track clip3.dv \
-filter greyscale track=2 \
-transition affine:"0=21%/11%:100%x100%:50; -1=61%/41%:100%x100%" fill=0 out=99 a_track=3 b_track=1 \
-transition affine:"0=20%/10%:100%x100%; -1=60%/40%:100%x100%" fill=0 out=99 a_track=3 b_track=0 \
-transition affine:85%/80%:10%x10%:30 fill=0 out=1000 a_track=3 b_track=2 \
$*
