Weird wireframe appears when baking curvature map

wari1212

I have a question, why after baking curvature map weird wireframe appears on my low poly model?

TheGabmeister

Maybe it has something to do with the current normal map? If I recall correctly, curvature map bakes will sample an existing normal map.

wari1212

Yes you have right, I checked my normal map and when I zoom in, it was blocky, I forgot smooth my high poly model.