Baking Lightmaps with Skylightportals with option "store with irradiance map" produces inhomogenous brightnesses at baked objects

[Robert1977]

Dear all,

I have the issue that when I bake with LC and Irradiance Map, while having skylightportals in front of the windows, the baked interior objects have inhomogenous brightness. With different brightnesses I mean, that one panel has another overall brightness than the other, even if both form a continuous wall. When I switch "store with irradiance map" off, brightnesses are correct, but due to the noise, i cannot use the lightmaps, since the noise is scaled up to tiny little splotches, when having quite small lightmaps. Irradiance Map is smooth and I want to use it (at least in Vray 3.x, in Vray 5 I would like to use bruteforce and the denoiser).

Did anybody experience the same?

Kind regards
Robert

[Robert1977]

Update, this happened because reflective caustics was on, and this doesn't work reliable with irradiance map during baking.
But I will switch to lightcache-bruteforce, which will work better.