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Taremin/hue_shift.osl

Created February 7, 2020 04:39
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hue_shift.osl
shader hue_shift (
float Hue = 0.0,
float Scale = 1.0,
output float Highlight = 0.0,
output float Shadow = 0.0
) {
float tmp = Hue * 3;
Shadow = ((round(tmp) - tmp) * Scale + tmp) / 3.0;
Highlight = ((floor(tmp) + 0.5 - tmp) * Scale + tmp) / 3.0;
}
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