Hasta La Motion!

Hi guys. I have been working on a defocus for Nuke based on Enricohman’s Shake thread on this forum, mixed in with the original Shake bokeh defocus shapes. (But with cool halo artifacts and chromatic aberation sans the mentioned Enricohman thread). It looks kickass.

But my main concern is a lack of an ability to pump in a seperate channel to multiply over the effect (Ie a masking layer over the A input). At the moment – I am doing several convolves of descending bokeh size and blurring the alpha mask, then dividing the convolves into areas based on the luminance of the mask. This is a less than ideal solution – it works – but only on smaller convolves – It loses it on larger ones.

I’ve seen Hugo’s posts on the subject – and I think I may be out of luck with hoping for an ability to pump in an alpha matte within the nuke interface… But I was wondering if anyone had the convolve math. Or a better workaround than the one I’m currently implementing.

I’m not really expecting Chuck Norris to descend from heaven (Angels playing harps) and deliver the perfect solution. (The odds of that happening are about as high as Apple releasing Phenomonon).
But some discussion on the subject might be nice.