Alpha Blending and sRGB help!

LovelyBro · 2021-05-16T16:33:34

Hello,I am so confused about sRGB alpha blendingif you have a destination of pure white (255,255,255) aka (1,1,1)and a source of pure black (0,0,0)then we know these values are the same in sRGB and Linear (1^2.2=1) and (0^2.2=0).now, we want to blend the black with 0.5 alpha.(src * alpha) + (dest * (1-alpha)) = new color((0,0,0) * 0.5) + ((1,1,1) * (1-0.5)) = (0.5,0.5,0.5)now please, what color space is this new color?? If we say its linear, then later on display we have to convert it to srgb and so we do (0.5,0.5,0.5)^(1.0/2.2) = WRONG (too bright). if the new color is sRGB already, isnt it funny we can do from linear colors to sRGB inside the alpha blending suddenly?