2008

Lighting Data Exporter Utility
Utilities panel > Utilities rollout > Lighting Data Export
The Lighting Data Exporter renders the active viewport to images that include
luminance on page 7833 and illuminance on page 7813 data that can be used
for lighting analysis.
The Lighting Data Exporter does not render the files unless you have applied
an
exposure control on page 6531 to the scene.
You can render to either the
TIFF file on page 7164 format. If you export to a
TIFF file, the utility renders a single image file that has separate channels for
luminance and illuminance (the file is of the 32-bit SGI LogLUV image type).
You can also render to the
PIC file on page 7151 format. If you export to a PIC
file, the utility renders two images: one containing luminance data, and the
other containing illuminance data (see the description of the File Name button,
below).
Interface
File Name Click the button to specify a file name for the rendering.
When you export to the PIC format, the Lighting Data Exporter renders two
files. It appends the string “_Illuminance” to the name of one file, and
“_Luminance” to the other. For example, if you type house as the file name,
the exporter renders to house_illuminance.pic and house_luminance.pic.
Image Size group
Width Sets the output width, in pixels. Default=640.
Exposure Controls | 6559