A small library for LÖVE which can be used to switch through different colour palettes.
It originally was created to simulate different gameboy palettes, but can do a lot more.
The shader uses the red color component of the target fragment to decide what color it should pick from the LUT (Look-Up Table).
An example LUT with five palettes:
A red component of 0 would tell the shader to pick the leftmost color from the LUT, whereas a value of 255 would pick the rightmost color. Each line on the y-axis in the LUT represents a different palette.
The more pixels a line has the more colours the shader will use to replace the original colours.
The example included in the repository shows how the colour switcher can be used in a LÖVE game. You can use the left and right arrow keys to switch through different palettes. The 1, 2, and 3 keys will switch to a different LUT.
The first LUT has four colours, the second one has eight colours and the third one uses only two colours.
Copyright (c) 2014 Robert Machmer
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