Create panel > Lights > Photometric Lights > Create a photometric light. > Intensity/Color/Distribution Parameters rollout > Choose Web distribution type.
The Web Parameters rollout is displayed on the Modify panel when you create or select a photometric light with a web distribution. Use these parameters to select a photometric web file and to adjust the orientation of the web.
Autodesk VIZ can use the IES, CIBSE, or LTLI photometric web formatting.
Target Point Light (Photometric)
Free Point Light (Photometric)
Target Linear Light (Photometric)
Free Linear Light (Photometric)
To select a photometric web file:
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On the Web Parameters rollout for a selected light, click the Web File button.
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Navigate to the location of the file you want to import. Select the file and click Open.
If you are modifying a light, the light's icon is replaced by a wireframe outline of the photometric web. If you are creating a light, the photometric web icon appears when you drag your cursor in the viewport to create the light.
Note: You can obtain photometric web files from various lighting manufacturers. You can use the Content Browser to download IES files or use IES files available in the Lightscape Libraries provided with Lightscape software.
Web File—Selects an IES file to use as a photometric web. The default web is a diffuse distribution shining from one edge.
X Rotation—Rotates the photometric web about the X axis. The center of rotation is the photometric center of the web. Range=-180 degrees to 180 degrees.
Y Rotation—Rotates the photometric web about the Y axis. The center of rotation is the photometric center of the web. Range=-180 degrees to 180 degrees.
Z Rotation—Rotates the photometric web about the Z axis. The center of rotation is the photometric center of the web. Range=-180 degrees to 180 degrees.
Photometric web icon—Shows a three-dimensional representation of the light distribution. See Web Distribution.