A heightfield is always located inside a box { 0,1 } (before
transformations). The corners of an image map are at <0,0,0> and <1,1,0>
before transformations.
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
