code/__DEFINES/matrices.dm

TRANSLATE_MATRIX	Helper macro for creating a matrix at the given offsets. Works at compile time.
COLOR_MATRIX_IDENTITY	The color matrix of an image which colors haven't been altered. Does nothing.
COLOR_MATRIX_INVERT	Color inversion
COLOR_MATRIX_SEPIATONE	Sepiatone
COLOR_MATRIX_GRAYSCALE	Grayscale
COLOR_MATRIX_POLAROID	Polaroid colors
COLOR_MATRIX_BRG	Converts reds to blue, green to red and blue to green.
COLOR_MATRIX_BLACK_WHITE	Black & White
COLOR_MATRIX_LIGHTNESS	Adds/subtracts overall lightness 0 is identity, 1 makes everything white, -1 makes everything black
COLOR_MATRIX_CONTRAST	Changes distance colors have from rgb(127,127,127) grey 1 is identity. 0 makes everything grey >1 blows out colors and greys

Define Details

Black & White

Converts reds to blue, green to red and blue to green.

Changes distance colors have from rgb(127,127,127) grey 1 is identity. 0 makes everything grey >1 blows out colors and greys

Grayscale

The color matrix of an image which colors haven't been altered. Does nothing.

Color inversion

Adds/subtracts overall lightness 0 is identity, 1 makes everything white, -1 makes everything black

Polaroid colors

Sepiatone

Helper macro for creating a matrix at the given offsets. Works at compile time.