I was painting in eyebrow hairs yesterday, which took ages. I added some subtle effects to them including very slight drop shadow, noise and blur, and eventually got it perfect so you couldn't distinguish them from the originals.
But later I realised that I needed to add some more. So I had to do it all over again, which seemed to take ages. The drawing part was relatively easy - it was getting the balance of the shadow, noise and blur right that took most of the time.
In retrospect I realised that it would have been ideal if I could have had the noise, drop shadow and blur applied in real time as I worked with the brush.
Obviously the drop shadow is not a problem since it is a layer effect which updates itself automatically, and I can set up a clipped noise layer to deal with that part of the problem.
But how can I set up a blur that applies itself to my drawing as I work? I foresee this being a scenario I will encounter again and again. I know there must be a way, but I just can't put my finger on it.
Can anyone provide a solution.