Question Use distance node without a circle shape

Hi people!

I have been working on this for some hours now and couldn't get to anything useful, I'm using the distance node to get some shader effects based on a world position, the node works perfectly if I want something with a circular effect (I have a few different things with that) the problem is that I can't manage to create anything that is not circular no matter what, if the distance node touches anything it automatically becomes circular, for example, I have an effect that changes some opacity based on distance, it works perfectly if I want to do it in a circle, but if for example I want it to have an rectangle shape even the rectangle becomes an circle:

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I tried to use other approaches instead of assigned it to the UV but then I just get an fixed rectangle in the middle that never follows the given point, for example:






and even tried alternatives to the distance node, but I cannot get the opacity point to be a square instead of a circle, the above node works perfectly to display this (an opacity is applied to one sprite an shows the one below):




what I would like to achieve it getting the distance node to show the same effect on that position but in a different shape, so the above effect would look like this (for example):

 

found a solution, it looks like if I use Add instead of distance I still can play with the position without making everything become a circle, so this works for me: