Ok looking into the optical flow if's. So what i am trying to do is to hook up a layer
that got optical flow generator on it and i want to pass that layer into the optical flow as a optical flow "distort" source.
So looking into the isf and trying to figure out how to ad an "select layer" as input for the "distort" mask instead of an looped main input. as _inputImage / sampler2DRect applies to the main input.
Uhm... some advice and headers on what i should ad and where ? : D