Author Topic: is 4% reflectance value is in linear or srgb?  (Read 58 times)

Here is one of those confusing topic again.  I remember I've asked long ago how come using designer to convert from metal/rough to spec/gloss the spec value is grey.  And someone has answer it is because all object has spec and its 4% in linear and 2% in srgb (or the other way around)

Assuming my render engine will "add" gamma to any linear input(image get brighter when I set the input as linear).  Do I still put 4% gray on my spec/reflection map? or should I degamma that to 2% (or simply set the input as srgb)