input
  filter: nearest
  format: rgba16f

program
  filter: nearest
  format: rgba16f
  width: 400%
  height: 100%
  modulo: 2
  fragment: ntsc-pass1.fs
  
program
  filter: nearest
  format: rgba16f
  width: 50%
  height: 100%
  fragment: ntsc-pass2.fs

program
  filter: linear
  width: 100%
  height: 100%
  
output
  filter: nearest