Hey to all,

I'm trying to create an dilation like shader for UDK.

Basically, the same effect of Iris/Pupil dilation of the eye, kinda like this shader: http://carlosmontero.com/shader_eyeball.php

Problem is, my dilation of the texture doesn't work correctly. It 'expands' my texture (EI: making them larger) without a proper center position (EI: stretching from the middle to out with a stretch tolerance) .

So basically, anyone know of a cheap way to this?

Cheers!