I am changing the ini file. Better results.
it looks great !!
thank you for the download, will have a look.
from your experience, what are the most important elements to edit in the ini file of 4.11 ?
depends. for example when you have a big scene you need a lot more photons for a clean soft lighting.
NumHemisphereSamples
NumIrradianceCalculationPhotons
DirectIrradiancePhotonDensity
IndirectPhotonDensity
IndirectIrradiancePhotonDensity
i usually tweak these settings.
i’ll investigate that, thx
Hi jazvec. Great work!
You use gray material or final materials for a final light building?
no, that would ruin the GI. the gray screenshots are in lighting only mode.
Great work jazvec! What settings are you using for exposure / autoexposure? I always get really dark results using skylight only…
exposure bias 0.2. everything else is default.
So autoexposure enabled I guess. How the scene looks without autoexposure? Did you use skylight only?
i used bounce cards.
does’nt work.
miss *uproject
theres an ArboriaFlat_v3.exe
its not an unreal project file.
yes but it’s the error i get 
aah sorry. it doesn’t work couse i use a LAN for the project.
in the :/C dir now working perfectly 
can u share your pretty settings?
thx so much!
ini settings:
NumHemisphereSamples=64
NumIrradianceCalculationPhotons=3000
DirectIrradiancePhotonDensity=1000
IndirectPhotonDensity=8000
IndirectIrradiancePhotonDensity=4000
IrradiancePhotonSearchConeAngle=2
world settings:
static lighting: 0.15
indirect bounces: 100
lighting quality: 5
lighting smoothness : 1.2
production quality
can I ask your building time? with a waaaaaaay lighter tweak of the .ini I’m reaching about 1 day of building time and I’m struggling to understand where I’m doing wrong! yeah I’m using 4.10 instead of 4.11 but it really shouldn’t be so long!
5820K@4.4GHz 3.30h.
i recommend you start using 4.11. it supports embree which means faster build times and also portals are very handy for this kind of work.
also turn off lightmap compression in world settings and dont use 4k lightmaps.
I have an Intel i7-3970X 3.5ghz with 32gb ram and I’m using the 4.10 because when I started working on my project 4.11 was still a preview and so I’m trying to finish it with 4.10
Basically I’m following all the threads here and in other forums about lights/lightmass/.ini files and-so-on, and I’ve tried to follow all the basic rules without exagerating (to say the truth my settings are way lower than all the setting I’ve read around):
World setting
Static lighting level scale: 0.3
Num indirect lighting bounces: 20
Indirect lighting quality: 10
Indirect lighting smoothness: 1
Lightmap compression: off
Medium quality building light
.ini setting (I’ve started from rafaeris ones and gone low)
NumIrradianceCalculationPhotons = 4096
NumHemisphereSamples = 64
IndirectPhotonDensity = 500
IndirectIrradiancePhotonDensity = 250
IndirectPhotonSearchDistance = 180
my lightmaps reach 2048 just for the floor and the ceiling (that are huge) 1024 just for some walls (really long ones) and then decades from 512 (for other walls and complicated items) to 64 (for bushes outdoor, really tiny/simple objects)
Looking to my project with this setting I wouldn’t say “it will take a lot” for the build, even just because I’m looking at your project, or at other projects, full of objects (which seem to be high quality ones), with way higher settings than mine, built in 3-5 hours (rafaeris’ last is built in 40-50 minutes!)
So that’s why I’m struggling: what am I doing so wrong? which is the huge mistake I’m missing?
While on the topic of "Let’s make Lightmass… understandable’ - Perhaps it’s worth clearly covering in the same topic, the stages of Lightmass’ build process (Emitting Photons, Collecting Photons, Processing Mappings, Exporting Results).
I see this thread being the largest source of information covering lightmass, so having someone describe what’s going on would be a good idea 
Hey guys, Im new in Unreal, I just download the example project in page1, I get this error “This project requires the Substance plugin”, I know what is this, but its necesary for the project?, I can open the project but when I press the build buttom, render never start… Any suggestion?, is Subsustance necesary?, I can skip any object in the project to delete subsustance initial message?..
Thanks in advance…