#98578
emitter = simple shape : square set in ceiling of a a 600x600x300 cm room (imported via DXF)
> 1st test-rendering made - ok.
> emitter object selected
> "show normals" activated
> "change orientation" activated (normals point to opposite direction)
> file saved
> new rendering

result: no effect / no change of light direction in rendering

tried several times - different files - same story.

So, is this a known issue?