I have been messing around with this for ages
I have a sketch up model imported but cant get it tom render with baked lighting
materials converted
i did note the were Metailc I change to Specular although they don’t have normal’s etc
I let Unity create UV maps on import if i don’ do that it crashes on bake
All surfaces are static
can anyone give me a clue to where i am going wrong or is it the model problem and sketchup
Seems like Unity has really struggled generating lightmap UVs for this asset, hence the artifacts that you are seeing. You could try the following:
Author lightmap UVs in a DCC package yourself.
If the imported object is one single mesh, try splitting it into smaller meshes. This way Unity’s unwrapper will have an easier time generating lightmap UVs for it.
If that does not fix it, try rebaking the scene and use Texel Validity view mode to check for invalid texels. If the majority of the scene is marked as red, then you need to fix your lightmap UVs and look for one-sided objects that could be potentially invalidating those texels.
