2D Tracking - Nuke 101: Professional Compositing and Visual Effects - page 210

18. Click Tracker1 and press the 1 key to make sure you're viewing that part of the
branch.
Creating an image that is absolutely still is one reason to stabilize a shot. Another
reason is to have an easier life when compositing. Instead of match-moving each
element (as you do in the next exercise), you can stabilize the shot, comp it, and
then bring back the motion using the tracked data you already accumulated. You
do this to make compositing a lot easier and so your shot doesn't stand out from
the rest of the movie for being absolutely steady.
For this shot, the director asked to “bloom” each candle flame a little. You will
add a flare to each candle flame using a node called, you guessed it, Flare from
the Draw toolbox.
Note
The Flare node is a great, very broad tool for creating various types
of flares and lighting artifacts.
19. Select Tracker1 and from the Draw toolbox add a Flare node ( FIGURE 5.9 ).
Figure 5.9. A new node, Flare1, is inserted after Tracker1.