Different settings of the same thumbnail size not possible?

[mvolke]

I discovered that if I create two thumbnails with the same size but different additional settings 

only one file (the first setting) is created because the settings are not reflected in the filename.

E.g.

$image->size(200, 100, array('cropping' => false));
$image->size(200, 100, array('cropping' => true));

In this case the second image won't be cropped.

I would expect that two different thumbnail will be generated.

[ryan]

There really isn't much point in a cropping=false value to this particular call, because that would force a stretched image... something that there is almost never a practical use for. You'd be better off just specifying only a width or height, to ensure you don't get a stretched image. But you are correct in that for the most part, ProcessWire only maintains one thumbnail per dimension. There is one exception: if you specify details about where it should crop, it should keep separate copies, i.e.

$img1 = $image->size(200, 100, array("cropping" => "center")); 
$img2 = $image->size(200, 100, array("cropping" => "northwest"));