Writing transformations

Transformations are put in transformation files with the .uxf extension. They can have the following 

sections, in this order:

G     

global

G     

transform

G     

default

If a transformation does not start with a label, it is assumed to start with the transform section. The 

optional setting within parentheses after the entry identifier is ignored.

The global section is executed only once per image and can be used to fill look up tables and 

initialize read only variables. See 

Global sections

.

The transform section contains one or more statements. The purpose of these statements is to take 

the predefined symbol 

#pixel

, which contains the coordinates of the pixel currently being calculated, 

transform it and put the result back in #pixel. They can also set the predefined boolean symbol 

#solid

 to true to give the pixel a solid color instead of calculating it. In this case, no further 

calculations are done for the pixel. The 

solid color

 is adjustable on the Mapping tab of the 

Layer 

Properties

 tool window.

The default section can contain the following settings:

G     

helpfile

G     

helptopic

G     

precision

G     

render

G     

title

It can also contain one or more 

parameter blocks

.

Next: 

Writing fractal formulas

See Also

Writing formulas

Transformations

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