Autodesk LIGHTSCAPE, Manual

Page: 209 / 362

Using Workplanes
201
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For more information on enabling, disabling, and
adding surfaces to layers, see “Working with Layers”
on page 82. For information on creating surfaces, see
“Creating Surfaces” on page 100.
Defining Surfaces as Workplanes
The properties of a workplane that are not part of the
scene should be set so that they do not affect the
lighting in your model.
The workplane is typically an additional surface
positioned and oriented anywhere in 3D space
where you are interested in measuring the photo-
metric performance.
To define a surface as a workplane:
1.
Choose Edit | Selection | Surface, then select the
surface.
2.
Right-click your model, then choose Process
Control.
The Surface Processing dialog appears.
3.
Enable Receiving.
Note: A workplane must receive light so that it can
register the incoming illuminance and store it in a
radiosity mesh, like any other surface in the scene.
4.
Disable the Reflecting and Occluding options.
Note: This ensures that the surface does not affect
the propagation of light through the environment.
5.
Click OK.
The properties are applied to the selected surface.