Difference between revisions of "Reference:User Defined Pattern"
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| − | <p>{{New}} in version 3. | + | <p>{{New}} in version 3.8 a special pigment pattern <code>user_defined</code> has been added to define the pigment color directly in terms of a set of functions.</p> |
<p>The syntax is a follows:</p> | <p>The syntax is a follows:</p> | ||
Revision as of 10:20, 26 June 2017
New in version 3.8 a special pigment pattern user_defined has been added to define the pigment color directly in terms of a set of functions.
The syntax is a follows:
pigment {
user_defined {
function { RED_FUNCTION },
function { GREEN_FUNCTION },
function { BLUE_FUNCTION },
function { FILTER_FUNCTION },
function { TRANSMIT_FUNCTION }
}
}
Each function is optional, in which case the corresponding component is set to 0. For example, the following sets the color to rgbft <x,y,0,0,z>:
pigment {
user_defined {
function { x },
function { y },
,,
function { z }
}
}
The pattern is similar to image_map in that it directly specifies colors rather than using a Color Map or Pigment Map.