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Create a directional light source by clicking Create Directional
Light
.
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Only directional light sources
can cast real time ground shadows. |
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Create an environment (you
can also apply textures on the walls). The model should look something
like this:
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In case no environment exists, a default
environment (very big and with transparent walls) is created. |
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In the specification tree, select the Bottom
wall and display its lighting properties by right-clicking then selecting
Properties.
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Click the Lighting tab and make sure that the
On check box is selected.
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Access the lighting
properties dialog box (by selecting the light in the specification tree
then Properties or Light object > Definition),
click the Shadows tab then select
the On Environment check box:
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Set the following parameters using the
corresponding slider or enter directly a value in the corresponding box:
-
Smoothing:
defines the shadow attenuation, i.e. the limit between light and
shadow. The higher the value, the more attenuated the limit. For
instance, "0" means a clear break with no attenuation
at all
-
Color:
lets you define the color of the shadow by clicking the
button to select the
desired
color. The slider sets the color intensity
-
Transparency: sets the opacity of the shadow. The
higher the value, the less opaque the shadow.
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Click OK to validate when satisfied with your
parameters.
The shadow of the lamp now appears on
the bottom wall as shown below: |
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You can move the created shadow
simply by dragging and dropping the compass onto it. |
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