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

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1 In a project view, select a lighting fixture, and click (Element Properties).
2 In the Element Properties dialog, click Edit/New.
3 Click Duplicate to create a new type.
4 Enter a name for the type, and click OK.
5 In the Type Properties dialog, for Light Loss Factor, click in the Value column.
6 In the Light Loss Factor dialog, specify the desired value.
See Light Loss Factor Parameters on page 1123.
7 Click OK 3 times.
Dimming Lights
When you dim lights in a 3D view for rendering, the settings are saved as part of the view properties, and
the lights are dimmed for that view only. The dimmed light settings do not affect rendered images for any
other 3D views.
NOTE To specify the color temperature shift for dimmed lights, change type properties for the lighting fixtures.
Modify the value of Dimming Lamp Color Temperature Shift. See Changing a Lighting Fixture in a Building Model
on page 1129.
To dim lights
1 Open the 3D view to render.
2 Define render settings.
See Defining Render Settings on page 1159.
3 In the Rendering dialog, under Lighting, for Scheme, select a setting that includes artificial
lights.
4 Click Artificial Lights.
5 In the Artificial Lights dialog, in the Dimming column, enter dimming values for light groups
or individual lighting fixtures.
Enter a value between 0 and 1 to indicate the relative amount of dimming. A value of 1 means
that the light is completely on (not dimmed). A value of 0 means that the light is completely
dimmed (off).
NOTE If a lighting fixture is a nested family that contains multiple light sources but is not shared,
you cannot dim individual light sources in the fixture. See Sharing a Lighting Fixture Family on page
1107.
6 Click OK.
7 To see the effects of dimming the lights, render the image.
See Creating the Rendered Image on page 1168.
Light Groups
You can create groups of artificial lights in a building model. For example, you may want to create groups
for functional areas of a building, such as exterior lights, kitchen lights, hallway lights, and so on. Light
groups can include one or more lighting fixtures of multiple types.
1134 | Chapter 17 Rendering