It isn't possible to seamlessly texture a sphere without some artifacting. If using one texture and one surface.
There are a few tricks you can pull by splitting the sphere into two halves and mapping each half - that will remove the distortion if you use two textures.
The problem you are having is a uv coordinate problem.
There are a few tricks you can pull by splitting the sphere into two halves and mapping each half - that will remove the distortion if you use two textures.
The problem you are having is a uv coordinate problem.