Camera Projection - Nuke 101: Professional Compositing and Visual Effects - page 484

Now to have it affect the background layers of the sign.
27. Insert a Grade node after Merge3.
28. Connect Grade2's Mask input to the output of Grid1.
29. Decrease Grade2's Gain property to something like 0.4 ( FIGURE 11.38 ).
Figure 11.38. The grid is added to the composite.
Creating the frame
Now to create the frame for this lovely screen to sit in. The frame is going to be a simple
affair for now. Just a color with an alpha. Later on you will add a little something to it to
make it look more believable. You'll make it in context—while looking at the final com-
posite—which will make your work even better.
1. Create a Constant node from the Image toolbox.
2. Change the Channels drop-down menu to RGBA, and change the Format drop-
down menu to HD.
Youwanttheframetonotbedarkerthanadarkcolorintheoriginalimage.Other-
wise it will feel fake.