Rendering in SketchUp

Fig. 29.17: 
Each point light was set to 125 candelas.

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Part 6: Shaderlight by ArtVPS
Fig. 29.18: 
In this rendering, Exposure is set to +3.
Fig. 29.19: 
In the rendering, Exposure is set to +5.

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Chapter 29: Shaderlight Simulated Lighting
Fig. 29.20: 
Additional point lights are placed.
Fig. 29.21: 
In this rendering, Exposure is set to +5.

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Part 6: Shaderlight by ArtVPS
Fig. 29.22: 
In this rendering, Exposure is set to +7.
Spotlights
In comparison to point lights, spotlights need 
to have a high Candela value. A good baseline 
value is 3000 and can range even higher. These 
high values will ensure that the spotlights 
function well with Point Light Candela values 
and overall exposures ranging from +2 to +7. 
Spotlights have a second value called Spread. 
Spread defines the radius of the cone of light as 
it emits from the spotlight. The default value 
is 60 degrees (Fig. 29.23, Fig. 29.24, Fig. 29.25, 
Fig. 29.26).
Fig. 29.24: 
The Spotlight Spread starts at 60 degrees (left). The spread radius can be adjusted to be narrow (middle) 
or wide (right) by adjusting the Spread value.
Fig. 29.23: 
Spotlight In the Shaderlight Lighting menu. 
A Candela of 3000 is a good baseline for spotlights.

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Chapter 29: Shaderlight Simulated Lighting
Fig. 29.25: 
Each spotlight has a value of 3000 but varying degrees of spread.