Light Falloff

Light Falloff lets you control the relationship between the intensity of a light and the distance from the light. In the real world, the farther you are from a light source, the less influence it has on the illumination of your surroundings. In other words, the greater the distance, the weaker the light.

In Bryce there are four falloff types you can apply to a light:

• None (No Falloff) causes the intensity of the light to stay the same regardless of the distance.
• Linear Falloff causes the light's intensity to fall off at a constant rate. When you use this type of falloff, the light's range is rather large. This type of falloff is useful for creating outdoor lights like searchlights.
• Squared Falloff causes the light's intensity to fall off rapidly. When you use this type of falloff, the light's range is quite limited. This is useful for creating indoor lights, like lamps.
• Ranged Falloff causes the light to change abruptly from full intensity to zero (no illumination) after a distance range you define.

To set a light's Falloff in the Light Lab, enable one of the following options: None, Linear, Squared, or Ranged.

To define the Range of a light's Ranged Falloff:

1. In the Light Lab, enable the Ranged option in the Falloff area.
2. Drag the Amount control right to define a greater range or left to define a smaller range or enter a value in the Amount field. The default Amount is 10 but can vary from 0 to 9999.
   
   

Examples:

• Falloff - None
  
  
• Falloff - Linear
  
  
• Falloff - Squared
  
  
• Falloff - Ranged = 10
  
  
• Falloff - Ranged = 100
  
  
• Falloff - Ranged = 200
  
  
• Falloff - Ranged = 1000
  
  

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