Gilly; Fear is in the eye of the victim
My eye exerimenting finally paid off today, by the illusion of masks and Null Objects i was able to create my demon eyes effect for the tragic case of Gilly O connor.
The Effect is simple. A mask is that is hiding the duplicated version of the video which has been modified by colour correction effects such as colourize and hue/saturation, in practice however is a pretty difficult effect to pull off.
1st after importing the footage into after effects i applied a tracking point to the pupil of our actors eye, this will help the mask track where the eye will be when it moves. Personally i tracked the eye backwards so that the tracking is more accurate. Once the tracking is done, i created a Null object and added it to the motion tracker. With that done i created a black solid, which is where the masks are made, however you have to toggle it invisible from the composition so you can see where to draw the mask around the eyes.
On the black solid i then drew the mask on the eye that was tracked, then i duplicated the mask and moved it across the other eye, and then attaching the black solid object to the null object. And finally i then duplicated the origional film clip and sandwiched in between the null object and the mask, then changing its settings to turn it into the alpha matte, which inverts the masks to only show the eyes, meaning the only thing effected by the colour change is the masked objects.
Once that has been done i can colour correct to my hearts content to get the colour that works