2008

surface perpendicular to its normal. The illuminance data ignores material
characteristics such as reflectance and transmittance.
Illuminance is not related to surface properties.
For best results, render with mental ray or another renderer that supports
32–bit floating-point output and set the output format to PIC, HDR, or
EXR. If using the scanline renderer or another renderer that doesn't support
32–bit floating-point output, set the Scale Factor parameter, which acts as
a multiplier, to adjust the range of values for the output data.
■ Ink: The Ink component (borders) of
Ink 'n Paint materials on page 5580 .
■ Lighting: The effect of direct and indirect lights and shadows in the scene.
The Lighting element displays an additional
Lighting Texture Element
rollout
on page 6163 .
■ Luminance HDR Data: Generates an image containing 32–bit floating-point
data that can be used for analyzing the perceived brightness of a surface
after light has been “absorbed” by the material of the surface. The
luminance data considers material characteristics such as reflectance and
transmittance.
Render Elements Panel and Rollout | 6145