8

IES Sun Light (Photometric) 1163
Icons for Free Area light with diffuse and web distribution
See also
Lights (page 2–1126)
Diffuse Distribution (Photometric Lights) (page
2–1168)
Web Distribution (Photometric Lights) (page
2–1169)
Name and Color Rollout (Lights) (p age 2–1127)
General Lighting Parameters (page 2–1175)
Intensity/Color/Distribution Rollout (page
2–1197)
Shadow Parameters (page 2–1181)
Advanced Effects Rollout (page 2–1185)
Pr ocedur es
TocreateaFreeArealight:
1.
OntheCreatepanel,clickLights.
2. Choose Photometr ic from the drop-down list.
(Standard is the de
fault.)
3. IntheObjectTyper
ollout, click Free Area.
4. Click the viewpor t
location where you want the
light to be.
The light is now part of the scene. It points away
from you in the viewport you clicked.
5. Set the creation parameters.
Yo u c a n
position the light (page 2–1136) and
adjust its direction with the tra nsform tools.
You can a lso adjust the light’s position with the
Place Highlig ht (page 1–452) command.
To a djust the light:
1.
Select the lig ht.
2. On the Main toolbar, click Rotate. Drag
the select ion to adjust the light.
Tip: You can also adjust the light’s position with
the
Place High light (page 1–452) command.
IE S Sun Light (Photometr i c)
Create panel > Systems > Create a Daylight system in
your scene. > M odify panel > Daylight Parameters rollout
>Sunlight>ChooseIESSun.
Create panel > Li ghts > Photometric > IES Sun
Create menu > Lights > Photometric > IES Sun
IES Sun is a physically-based lig ht object that
simulates
sunlight (p age 3–1112) .Whenused
in conjunction with a
daylight system (page
1–394)
, its values are set automatically based on
geographic location, time, and d ate. (IES stands
for Il luminating E ngineer ing Society; see
IES
Standard File Format (page 2–1172)
.)