Why do I get shadow artifacts after baking?

Development Rendering
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1

I get weird blobs of shadows over my meshes.

. Not quite sure how to go about it.

EDIT: Thus far the only way I know how to fix this issue is to make all these objects Movable (aka DYNAMIC). But As I understand this means that these objects will be taking more CPU usage, I have a lot of custom content and I can’t really make everything dynamic.

EDIT2: I re-use texture space on these models which means that I STACK UV faces on top of each other on the texture segments to re-sue those textures parts again. I mean I don’t think that You need to make a dedicated texture segment for each face, now do you? You’re bound to be able to re-use a part of a texture on more than jsut one part of a mesh.

EDIT3: I use MAYA 2012 with the updated FBX exporter.

2

It will be a low resolution lightmap or incorrectly done lightmap, you have override lightmap resolution to 32x32px which is pretty low for a piece that size. Try upping the size or post the UV layout for the lightmap UV.

3

I have unbaked that one light and it appears that I have some artefacts all over the light affected are which are not only custom meshes but also Unreal Geometry with textures for walls. Perhaps problems in the light source instead?

4

All the search results keep referencing to creating a second UV set in your 3D editor.