At the bottom of the panel
is a Light Intensity value, currently set
at 100%. This is a Light Intensity setting
but because it??™s in the Render
Globals panel, it globally changes the
intensity on all lights in your scene.
This can be useful for scenes that have
multiple lights that need to become
brighter or dimmer over time.
Let??™s say you??™re animating a stage
play or musical concert, for example.
You have 29 spotlights shining
on the stage, the players, and the
actors. All their intensities are randomly
and quickly changing to the
beat of the music, and perhaps
focusing on key performers. At the end of the song, you want all the lights to fade out
equally. Instead of setting the light intensity 29 times for each light, which you could do
through the Scene Editor, it is better to ramp down the Global Light Intensity setting.
Similarly, if you have lens flares applied to these lights, you can globally change the Flare
Intensity setting for lights, just below the Light Intensity setting.
Radiosity and Caustics
Also within the Global Illumination panel (within the Render Globals panel) are the
Enable Radiosity and Enable Caustics settings.
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