Graphics Reference
In-Depth Information
When placing lights in our scene, it is important to remember that the more lights we
have in the scene, the longer the render will take. So, we need to think carefully about
our scene and try to optimize by checking if we really need those 10 or more lights. It is
true that the light we get from a spotlight may not be sufficient to light the entire room,
but there is a trick we can use to reduce the amount of lights present in the scene.
Using the fill light
Why might we use this light? This is a good question, and the answer is that with
one fill light, we can create good illumination for the entire room. As the name
suggests, it is a fill light, and the benefit of this light is that it provides a good
illumination but doesn't produce any shadows. So, let's keep these points in mind
because later we will see how to use the Global illumination effect to drastically
improve the lighting in the scene:
• Lights, in general, are memory consuming and need to be used carefully
• The fill light can be used to provide a good overall illumination in one go
• The Global illumination effect reduces the use of lights
With these points in mind, let's have a look at another way to tweak and improve the
quality of the lights in use.
Tweaking lights with the Properties menu
Let's have a look at the fill light. This light has the simplest settings to configure, as
shown in the following screenshot:
