Graphics Programs Reference
In-Depth Information
Nuke has several kinds of image manipulation tools. By placing them in a specific order
one after another, you can create your desired effect. This process is similar in any com-
positing application, but in Nuke everything is open and at your control. Having each in-
dividual process exposed achieves a greater level of control, which enables you to keep
tweaking your work to your or your client's needs quickly and with relative ease.
Usually,youstart a composite with one ormore images brought in from disk. Youmanip-
ulate each image separately, connect them together to combine them, and finally render
the desired result back to disk. This process builds a series of processors, or nodes , which
together look like a tree, which is why it's called a process tree. Note that Nuke uses a
secondanalogytodescribethisprocess,thatoftheflowofwater.Atreecanalsobecalled
a flow . As the image passes from one node to another, it flows. This analogy is used in
terms such as downstream (for nodes after the current node) and upstream (for nodes be-
fore the current node). Nuke uses these two analogies interchangeably.
ANukeprocesstreeisshownin FIGURE 2.1 . Init,youcanseearelatively basictreewith
two images—the smiling doll on the top left and the orange image on the top right. The
images are being passed through several nodes—a resolution changing node, a color cor-
rection node, a transformation node—until they merge together at the bottom of the tree
with another node to form a composite. The lines connecting the nodes to each other are
called pipes .
Figure 2.1. This is what a basic Nuke tree looks like.
 
Search WWH ::




Custom Search