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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