WorldBuilder
4 Tutorials - Volcano - Page 3: Adding Trees
In the Size & Density property, use low values in the
Height Range and Average Density parameters -under
10- to make the trees appear smaller (so that our volcano appears
larger).
Use
Placing Conditions to limit tree growth to certain parts
of the furrowed areas. Basically, we want to have our forest
of fir trees growing in the upper and lower parts of the furrows.
You
may have to experiment with different
Altitude Range
settings to confine the tree growth properly (the
example scene file uses a high value of 40 and a low value
of -20).
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When
seen from the Top viewport, we can observe how the Placement
Conditions property effects the distibution of our trees
(in this screenshot, the Camera and Parallel Light have
been hidden to more clearly how the tree).
For
added realism you may also want to enable both Cast Shadow
and As Flipboard, in the Shadows & Reflections
property.
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rendering, select the Objects List property (for the
Area2 Scattered Vegetation) and enable Draw as Flipboards.
This will greatly reduce render times.
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As
a finishing touch for the terrain, let's add two more Materials
on top of the one you added previously. Select and drag grass20
from the Library onto Area 1 (full).
Let' s
use a time-saving trick to limit the placement of this new material:
In
Area2, select the Placing Conditions property for
the scattered GrandFir 1 trees. At the top of the Property
Page, select Copy from the Property Toolbar. This will
‘capture' the settings for this property.
Now
select grass20 in Area 1 (full) and then select its
Placing Conditions property. In the Property Toolbar
click on Paste to apply the settings we copied from the
Area2 Scattered Vegetation.
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Here's the rendered result, with the trees hidden....
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