The diffuse textures seem fine in the substance viewer but when I try to export them they come out too bright and its ruining all my work. been trying ages to find out whats doing it.
This is definitely a colour space issue. the viewer needs to interpret the data correctly - many (ue4 included) will assume that a 16bit per pixel file should be read as if the data is in linear space and thus will apply a gamma curve to it for viewing. We use painter to output 16bit sRGB diffuse maps at work and haven't…