Iray+ Emission

Iray+ Emission allows any geometry to have emissive properties, enabling you to create objects such as screens, LEDs, light bulbs and projections. Emissive materials can use standard light profiles or textured emission via bitmaps. Iray+ Emission can be set on the Geometry layer of any Iray+ material.

Parameters

Emission:

• On: toggles Emission on or off without losing chosen settings.
• Use Profile: add a photometric/IES file to define characteristics of the emission. You will not be able to use an IES profile in conjunction with a textured emission map.
• X Rotation/Y Rotation/Z Rotation: transforms the orientation of the photometric light distribution.
• Template: choose from a dropdown list of common lighting types with fixed, accurate values.
• Custom: control temperature and intensity parameters manually:
  • Temperature:
    • Color Temperature: specifies color temperature in Kelvin.
    • Tint: adds an optional color value or textured emission map which acts as a 'gel' or projection in front of the light.
    ✱ Note: IES/Photometric profiles are not compatible with textured emission.
    
    
  • Intensity: controls the intensity of the light, measured in Lumens or Lux:
    • Lumens: the total amount of light emitted is independent of the size of the light source geometry. Increasing the surface area will mean each that part of the surface becomes dimmer, so that overall emission remains constant.
    • Lux: the total amount of light emitted is proportional to the surface area of the light source geometry. (This is based on Power per Unit Area.) Increasing the surface area will mean that more light enters the scene.

Light Details:

• Iray+ Lights
• IBL
• Physical Sky

See Also:

• Lighting Concepts
• Lighting Analysis
• 3ds Max Light Compatibility

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