Game Development Reference
In-Depth Information
treeClone.setLocalTranslation(location);
treeNode.attachChild(treeClone);
9. After parsing the whole terrain, tell the
treeNode
field to batch its contents to
optimize the performance and then attach it to the supplied
Spatial
.
10. Now, create an application class to test this. It's recommended that you use a test
case such as
TestTerrainAdvanced
to get a start.
11. Create a new
Node
class called
worldNode
, which we attach to
rootNode
and then attach the terrain to.
12. Then, create a new
TreeControl
class and load and set a suitable model that
we can use as
treeModel
.
13. Finally, add the
TreeControl
class to
worldNode
.
After running the application, we will see trees spread out across the terrain—in valleys as
well as on top of the mountains. Depending on the environment, trees might not grow on
mountains. If we don't want this, we can add a simple check in the
TreeControl
class.
By adding a field called
treeLimit
, we can clamp the growth of the tree above a cer-
tain height; also, make sure the
terrainHeight
field is lower than the value supplied
from
fractalSum
.
