Iray+ Emission

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

Parameters

• 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 IES profiles in conjunction with a textured emission map
• X, Y, 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: Controls temperature and intensity parameters manually
  • Color Temperature: Specifies color temperature in Kelvin.
  • Tint: Add a 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:
  • Lumens: The total amount of light emitted will be independent of the size of the light source geometry. Increasing the surface area will mean each part of the surface becomes dimmer, so that the sum total light emitted stays constant.
  • Lux This is based on Power per Unit Area. The total amount of light emitted will be proportional to the surface area of the light source geometry. Increasing the surface area will mean more light enters the scene.

Light Details

• Iray+ Lights
• Physical Sky
• IBL

See Also:

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

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