Formula to convert 0-1 linear into sRGB

Jazon99

Hi!

Sorry if that was asked a lot. I need a formula to convert 0-1 linear(which is used in material sliders like 3ds Max,...) like 0.7 into Photoshop sRgb(0-255), what is used in PS histogram. I need that for non color maps, like roughness.

I don't know if the correct formula is x(linear)*255, or do I need to factor in Gamma correction(=x^(1 / 2.2)*255) as well?

Edit 1: is this formula and conversion correct?

ZacD

Looks right to me, here's a color chart with linear and sRGB values and if you multiply them by 255 it matches closely with your sheet.

poopipe

these are slightly more scientific - yours should be ok though

linear to sRGB
https://www.desmos.com/calculator/mbo3tblrmx

sRGB to linear
https://www.desmos.com/calculator/5iq5km52h7