Release 4.0

Description - <parametername>.default

Name: <parametername>.default

Type: Same as parameter: Either quaternion, complex, or real, or int, or bool

Description:

This attribute lets you specify a default value for the parameter. Choose it suitable, so that the formula produces a reasonable image if all parameters are set to their defaults. The data type of this attribute must conform to the data type of the parameter itself. But there is an exception to this rule: The parameter datatype array needs a string containing the filename (with path) to an image.
Not only you can specify a constant, but also you can specify an expression: So you can set the default value of a parameter according to the current screen center, for example.

Examples:

• aspect.default=0.5;
• sc.default=center*sin(angle);