Autodesk LIGHTSCAPE, Руководство пользователя

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Daylight 10
162
Lightscape
receives somewhat more light than it should while
the floor receives somewhat less. The result,
however, is still natural-looking.
Defining Surfaces as Windows
When you create a window through which natural
lighting passes, Lightscape automatically calculates
the illumination from the sky, and applies the results
to the window. The window is then treated as a
diffuse light source that illuminates the room. The
material of the window will affect the amount and
color of the light that passes through it.
Defining Surfaces as Openings
When a surface is marked as an opening, it is not
considered as part of the scene and does not receive
or reflect light. Instead, it is used as a placeholder to
indicate that natural lighting can go through it to
reach the surfaces of the interior environment.
Surfaces marked as openings are not rendered and
are not displayed in the model.
To define a surface as a window or opening:
1.
Select the surface in your model.
2.
If you are defining it as a window, make sure you
have applied a transparent material to the selected
surface.
Note: If you have modeled a window with two
surfaces, only the surface facing into the space
must be defined as a window. However, both
surfaces should be assigned the same transparent
material.
3.
Right-click the surface, then choose Process
Control.
The Surface Processing dialog appears.
4.
Do one of the following:
• To define the surface as a window, enable Window.
• To define the surface as an opening, enable Open-
ing.
5.
Click OK to define the selected surface as indi-
cated.
Illuminating Your Model with
Daylight
You can control the quality of natural light in your
model by adjusting the following daylight settings:
• Sun and Sky Color
• Sun Position (using Direct Control or Place and
Time).
Setting the Sun and Sky Color
Use the Sun and Sky tab of the Daylight Setup dialog
to define information about the sun and sky. With
these parameters, you can simulate the color of the
sun and sky during a sunrise or sunset, or light your
model with a bright, white, noonday sun. You can
experiment with sun and sky colors to create
unusual lighting effects.