I have read some report, about UE2.
it cause wrong direction shadow and AO effect.
I thought it seems updated and removed alerady, so did not care it.
(and I have not tried UE2 before, so do not think much)
but,, a few weeks ago,, I want to try IBL then study and did some test.
Now I believe,, the IBLmap and effect are different direction.
these pic show it clear.
sphere is sopt light rendered prmitive sphere with ds default shader,
left sphere is UE2 light. applied KHpark.dsa.
just change scale.
the green part of rendered primitive,,should be caused by underground lawn glass of image map.
but the direction is different. it show the axis of rotation is titled.
daz can not correct this wrong rotation?
and how to fit your gackground image and effect of UE2 ?
simply rotate parented sphere, and adjust it?