Sorry for the late reply, as you can see there is not much activity on the forum last weeks and as any human we're also having some summer breaks so I'm checking less often.
Most of the Envtex features indeed work with truesky, actually, only the sky textures, precipitations and clouds will not be displayed when truesky is enabled, everything else is compatible.
Hello @mick_m
Sorry for the late reply, as you can see there is not much activity on the forum last weeks and as any human we're also having some summer breaks so I'm checking less often.
Most of the Envtex features indeed work with truesky, actually, only the sky textures, precipitations and clouds will not be displayed when truesky is enabled, everything else is compatible.