Graphics Programs Reference
In-Depth Information
Adding subtle relighting
Adding a DOF effect to the scene is not the only way that we can subtly focus or direct
the viewers' attention in our image. Something else we can use our ZDepth pass for
would be a gentle relighting of the scene. To see how this can be done, let's perform
the following steps:
1. Drag another copy of our Materials_Final.ZDepth.exr image down into the
composition layer stack, access the Mode dropdown for the layer, and set its
blending mode to Overlay (this darkens the image down a little with the fore-
ground being affected more than the background).
2. Next, we can twirl open the Transform options for the layer and adjust the
Opacity , bringing it down to about 65% .
3. As we don't want the overall brightness levels in the image to go down, let's
come over to the Effects & Presets panel and add a Levels effect to the lay-
er.
4. In the Levels controls, we can set the Input Black to 0.023 , the Input White
to 0.27 , and Gamma to 2.55 (again, we can set the numbers here to suit our
own particular view of what looks like a good effect).
5. To finish this effect off and tidy things up, let's add this layer to its own pre-
comp by right-clicking on it, choosing the Pre compose option from the menu,
and calling it Re Light .
The subtle gradation of brightness levels that we now have in the scene, going from
dark to bright, again pulls the viewers' eyes towards the display cases sitting in the
middle of the scene, adding to the feeling of being drawn into the image.
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