In addition to
parameter, which defines the variables for a part, you can also use
variable. A variable is only used inside a part and are not exposed outside. Parameters are similar to arguments in functions in programming languages and variables are internal variables. In the object below we define a variable
b to set the size of a leaf. The variable is defined by an expression that includes a
random fraction function, wich can be found under the
math menu. A random fraction is a number between
0.12345. The random fraction is multiplied by 5 and then 4 is added. This means that the size of the leaf, variable
b will always between
9. The leaf itself is create from a sphere that is scaled
0.5 in X-direction to make it a bit flat. It is scaled in Z-direction to make it long. Another random expression is used to set a random turn around the Y-axis and Z-axis.
Palmtop object is included in a tree. The tree consists of a number of cones that are randomly rotated a between
5 degrees. Note that every time that you generate the tree it will look a bit different.