"Roland Melkert" <nomail@nomail> wrote:
> I'm now using this, which seems to work fine.

Edit: some corrections fyi
---------
#macro getPngWarp(idx)
  #local doU=getPngNeedsURepeat(idx);
  #local doV=getPngNeedsVRepeat(idx);

  #if ((doU | doV) & !(doU & doV)) //xor
   #if (doU)
     warp { repeat x }
   #else
     warp { repeat y }
   #end
  #end
#end

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