src_dst 0 0
   src_blend 0
   cubes 1
   map_range 0.6 0.8 0 0
   map_range 0.3 0.45 0 0

src_dst 0 1
   mode mul
   fill_noise 4 2 0.5
   src_range 0.0001 1
   src_blend 1
   fill
   map_range 0 0.5 0 0
   end

src_dst 0 0
   fill_noise 3 1.7 0.3

src_dst 0 1
   src_blend 1
   dst_range 0 0.1
   src_range 0.5 0.6
   mode set
   fill