Artifacts on brickwork

Support Materials and Textures
1


After I extruded my walls up from a vertex drawn shape and smoothed, they were textured with a brick & brick bump . So far so good. I extruded the thin gray strips around the building which caused a distortion of the brick texture below them. I have reset the normals to outside and changed the lighting, but it keeps happening, even after several restarts. Any suggestions please.
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2

Maybe problematic geometry? In edit mode, grab verts or edges and move them around (cancel, don’t accept) to see if something separates.

3

I sorted it. Even though the shape of the building was square , I mapped the brickwork on the bay windows as a cylinder and it was OK
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