Graphics Programs Reference
In-Depth Information
I added a new plane object and moved it above the
scene. Then, I duplicated the face several times in
Edit mode, using Blender's snapping tools (set to
Increment) to keep the planes aligned in a grid.
I then scaled the whole array of planes along the
x -axis to make them rectangular.
To make these planes emit light, I assigned
a new material to them, and in the Node editor,
I added an Emission Shader node and attached
its output to the Material Output node (see
Figure 13-18). I gave the Emission shader a blu-
ish color and set its strength to 10. Because these
lights are meshes, not only do they light the scene,
but they also show up in the reflections on the
Spider Bot's shiny green surfaces, particularly on
the back, as seen in the figure.
It's simple to tweak the strength and color of
lights in Cycles, thanks to the render preview shad-
ing mode of the 3D Viewport, which can give instant
feedback on how your lighting looks as you adjust
lights. (For more on the 3D Viewport render pre-
view, see Chapter 14.)
Lighting the Jungle Temple
The Jungle Temple required a more complex light-
ing setup, but again, we have the Cycles render pre-
view to give instant feedback on how our lighting
looks. For this scene, I wanted to create a nighttime
atmosphere with a bright, fiery orange light com-
ing from the entrance to the temple.
World Background
Because I would be lighting the Jungle Temple scene
without world lighting, I set the world background
color to black with 0 intensity.
Temple Entrance Lighting
Let's start with the light coming from the temple
entrance, as this is the light source with the most
impact on the scene. I used a couple of light sources
to create this lighting. The first is a mesh emitter at
the end of the tunnel (out of sight of the camera); I
assigned red and orange emission materials to it to
provide orangish light throughout the tunnel and a
bit beyond. I set the intensity of these emission mate-
rials to about 40.
Material for light planes
Key light
Camera
Cycles preview
Figure 13-18: Adding lights to the Spider Bot scene. To the right of the Spider Bot is the orange point lamp, and above it is the
grid of mesh lights with their material visible in the Node editor on the left. The Cycles render preview is a great way to get
instant feedback on your lighting.
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