maximale Bildgröße für sphärisches Multires

6 cube faces with 300000x300000px each should be the max theoretical size at the moment, rendering each cube face individually from ptgui.
it may be possible to render a equirect with 940000x470000px from ptgui (joost lifted the 300k limit for rendering), but I am not sure if the krpano make multirez will accept non-standard PSBs... the convert to cubeface will definitely not work unmodified, since it would need to write PSB instead of tiff.

but all of this is purely theoretically, since shooting a 300x150k equirect needs a 300mm on a 5dm2, and the bigger version above requires a 1000mm on a 5dm2.