/usr/share/aqsis/shaders/imager/filmgrain.slx is in aqsis 1.8.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | imager
AQSIS_V 2
segment Data
USES 8830976
varying color CiHSV
varying float CiV
varying float MidV
varying float grain
segment Init
segment Code
pushv Ci
pushis "hsv"
ctransform
pop CiHSV
pushif 2
pushv CiHSV
comp
pop CiV
pushif 4
pushif 3.14159274
pushv CiV
mulff
sin
divff
pop MidV
pushv t
pushv s
noise2
pop grain
pushv grain
pushv MidV
mulff
pushif 1
subff
setfc
pushv Ci
mulcc
pop Ci
pushif 1
setfc
pop Oi
pushif 1
pop alpha
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