So, I have been having this issue for a long time. I am trying to make a house of sorts, and I need different types of walls. For example, I need Wall_400x300, Wall_Door_400x300, and Wall_Window_400x300. I am also using M_Basic_Wall with the color changed in the 1st and 3rd images and on the roof, but there is one problem. The lighting is drastically different on the nearby objects. Here are some images:
I think your lightmap resolutions are too low and this is why you get a “random” result.
…also if you could show us your lightmass settings + a few info about your scene (lights, portals…).
Can I ask why do you have those spot lights in the windows?
Thank you!
I don’t know what quality you’re after…
I would say that since we have portals there is no need to use the old bounce card method.
I would delete all the “fill” lights you have. I would set a cube map (HDRI image) for the Skylight to get nice realistic lighting. I would put portals in your openings and a lightmass importance volume around your building.
Static lighting level scale (0.1<1 depends on the lighting detail you want)
NILB: depends if you want to use any other lights than your directional sun and the skylight (5<10)
NSLB: 5<10
ILQ: if you see those circle artifact it means it’s too low! 10 is the archviz setting… again: you know what quality you want…
ILS: details again! If you want stronger indirect shadows you’ll need to go down to 0.6… The higher this is the result will be more blurred out…
I tend to turn off compression: it can cause strange results…
Also if you use modular pieces: you had to use SLLS 0.1 and ILS 0.6 to have the same shade between those panels or else there was always a visible line between the two!
Oh and I forgot: lightmap resolution!!
You can set in in your mesh’s properties or override that in the editor!
If you want to achieve nice results you’ll have to go a lot higher with your lightmap resolutions!! 512(1024)<4096 per wall!!
The spot lights that you mentioned are pointed at bounce cards. Also, by lightmap resolutions, do you mean in the details panel of the object itself, or somewhere else? Here are my Lightmap settings in the World Settings panel:
For my lighting I have 9 spotlights pointing at bounce cards, and a light source. I also have 3 spotlights pointing at the ground, and I have 8 flame particle systems, which omit light. Oh, and one dust particle system, which also omits light. Here’s an image from top down wireframe view:
Sorry, I just deleted my previous comment on accident.
The lights that you mentioned are pointed at bounce cards. Also, here is what happens when I increase the light map resolution in the details panel of the object.