How Function Based Shading is working ??

Question

The Function Based Shading is the Shading Type 1.Can anybody give the example of Function Based Shading....

jdeubert · Answer

Here's an example taken from my Advanced PostScript course. It creates a shaded region by interpolating

among two rows of six samples.

Hope this is useful.

John Deubert

Acumen Training

PostScript & PDF consulting and training

www.acumentraining.com

============== Cut here ================

%!PS

% SH1.ps

% Acumen Training

% Advanced PostScript course

/sinFcn <<

/FunctionType 0

/Domain [ 0 1 0 1 ]

/Range [ 0 1 0 1 0 1 ]

/BitsPerSample 8

/Size [ 6 2 ]

/Encode [ 0 5 0 1 ]

/DataSource < 00 00 00 96 96 00 F3 F3 00 F3 F3 00 96 96 00 00 00 00

00 00 00 00 96 96 00 F3 F3 00 F3 F3 00 96 96 00 00 00

>

/Decode [ 0 1 0 1 0 1]

>> def

/TestShade <<

/ShadingType 1

/ColorSpace /DeviceRGB

/Domain [ 0 1 0 1]

/Matrix [ 288 0 0 288 0 0]

/Function sinFcn

>> def

0 0 288 288 rectclip

TestShade shfill

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