Panel: Rules

These settings are employed by the Generator/Complex function and describe the rules for the pattern rendering. The rules are defined by mathematical expressions, which are processed by the Expression Parser.

At first a number is calculated and checked against zero. If it's greater than zero or equal to zero, the variable C is set to one, and to zero otherwise.

The second and third expression pair each define a condition and a consequence. If the result of a pair's first expression is greater than zero, the result of the second expression is assigned to C.

The last two expressions describe two values, that are interpolated (mixed) with the valence of C. C is always bound between 0 and 1.

Example:

If 0£x-0.5, then C=1 else C=0
If 0<y-0.5, then C=1-C
Interpolate between 1 and 0

These settings set C=1 if x is in the right half of the texture. After this y is checked against being in the lower half of the texture. If this happens, C gets inverted (1-C). The resulting value is either zero or one, because C can only be zero or one in this example.

Name

Range

Description

rules initial

none

set c=1 if result>=0

rules first rule

none

first condition

rules first set

none

first new value for c

rules second rule

none

second condition

rules second set

none

second new value for c

rules lowervalue

none

lower output value (for c->0)

rules uppervalue

none

upper output value (for c->1)