Autodesk 24000-000000-9860 - Revit Architecture - PC, User Manual

Page: 1164 / 1646

Description Parameter
surface itself. The lux (lx) is the International System (SI) unit of illuminance. The American
System (AS) unit for illuminance is the footcandle (fc), equivalent to 1 lumen per square
foot.
Illuminance is a function of the distance from the light source. Specify the distance at
which the illuminance is measured. At a distance of
Defining the Initial Color
When defining a lighting fixture, you can specify the initial color of its light source. The initial color is the
color appearance of the emitted light, before it is affected by color filters or environmental factors.
To define the initial color of a light source
1 Open the lighting fixture family.
2 On the Design Bar, click Family Types.
3 For Name, select the family type to modify.
4 Scroll down the list to locate the Initial Color parameter, and click in its Value column.
5 In the Initial Color dialog, specify values for the parameters.
See Initial Color Parameters on page 1126.
6 Click OK.
The Family Types dialog displays the new Initial Color value.
7 Click OK.
8 Save changes to the lighting fixture family.
Initial Color Parameters
When defining the Initial Color for the light source of a lighting fixture, define the parameters as follows.
Description Parameter
Select a value from the list, or select Custom to specify a Color Temperature. Color Preset
The color appearance of the light produced by the light source, expressed on the Kelvin
scale (K). Color Temperature
Using Lighting Fixtures in a Building Model
After using the Family Editor to define lighting fixtures, you can add lighting fixtures to the building model.
When you render an image, you can specify whether Revit Architecture is to include artificial lights in the
image, and which lights are turned on and off or dimmed.
1126 | Chapter 17 Rendering