Question by AOshi2001 · Jul 31, 2020 at 03:04 AM · error lighting scene graphics lightmap

Lightmapping Black Seam Issue With Modular Scene Pieces

Hi everyone, I'm having a weeklong issue with Unity's garbage lightmapper. Whenever I bake using the progressive GPU or CPU lightmapper my models generate fine black seams between each other. They are modular pieces with custom UV0 (for albedo/AO/Normal) and UV1 (for lightmapping). The console throws no errors regarding overlapping UVs yet the issue still persists. Generating UV's is also out of the question as even more issues arise when doing so. I am on Unity 2019.4.3f1 using the Universal Render Pipeline version 7.4.1. I've tried increasing the resolution of the lightmaps and disabling AO but none of these seem to get rid of the issue.

I think what i'm asking for is peace of mind that the issue is strictly on the side of the game engine and not an issue with my models. Any help is appreciated though.

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