I have a problem in the texture produced in BlenderGIS addon.
After the creation of the mesh (with height, all modifiers applied to obtain the true mesh) and rendered using the Cycles engine and interpolated texture, many dark lines appeared on the textured surface. Some of the dark lines coincide with the mesh cell edges, some are triangular shape.
I have tried scale down / up the mesh in UV editor but the dark lines still persist.
The darks lines will disppeared if texture interpolation was NOT used or the mesh height removed (i.e. become a flat plane).
How can we solve this problem?
This problem does not appear in EEVEE render.