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Why baked light looks so bad?

I enabled "Use emissive for static light" and set lightmap resolution to 4096 x 4096.

Product Version: UE 4.17
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asked Aug 30 '17 at 08:50 PM in Rendering

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This is because your lightmass settings are very low and emissive alone is not really ideal for lighting a scene. Default unreal has standard lightmass settings and defaults to preview quality. Also it doesn't look like you're using a lightmass importance volume. This helps confine to photons to the location they are actually relevant.

  • Firstly add a lightmass importance volume to your scene

  • Change your lightmass resolution back down to something much lower. Default is 64x64, but feel free to go up to 512-1024.

  • You could change the lightmass quality up to 2-3, smoothness to .75, and try a bake at a setting above preview.

Hopefully you get better results then. Adding a few lights will make a big difference though as it just adds a source of photons to process. I wish emissive was better on its own, but Iv found it needs some help from actual lights.

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answered Aug 31 '17 at 11:15 AM

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