Emissive material + use emissive for static lighting = superbad quality lighing

Development Asset Creation
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1

I was trying to mimic a common area light that is available on any 3d package but the quality is really really bad even using production settings.

unrealA.jpg
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UnrealB.jpg
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Any tip on this?

2

You’ll probably need to increase your lightmap resolution on your meshes. But also you can try adjusting the global lightmass settings, from there I would increase lightmass quality and lower smoothing.

3

Lightmass settings are pretty decent (production preset) and the resolution was high (512 px), I really miss area lights on Unreal Engine.

4

There’s more lightmass settings beyond the Production preset. Lightmass quality will increase the number of samples, and smoothing will adjust how much they get smoothed together.

5

Using exclusively emissive materials for lighting is a horrible idea, the results won’t be good. You’ll have to try to get by on area point lights, you can make them tubes as well.

6

[DevOptions.StaticLightingMaterial] Baselightmass.ini

I found this … it’s useful? EmissiveSampleSize=128 ?? MeshAreaLightGridSize=100 the parameter can control?