does anyone know if GPU mipmap generation takes colour space into account when blending the source image pixels?

[gsuberland@chaos.social]

does anyone know if GPU mipmap generation takes colour space into account when blending the source image pixels? (or I guess texels? I'm not a graphics guy)

I ask because blending linear RGB values produces different results to blending nonlinear RGB values (with the transfer function pre-applied, e.g. sRGB OETF, HLG, or PQ) and that can be quite important for colour accuracy.

I remember tackling this years ago but I can't remember what my conclusion was.

[erincandescent@akko.erincandescent.net]

@gsuberland it probably gets it right if you set the colour space because these days they tend to do it with render to texture