for a scientific project I textured a plane and then wrapped it to a sphere with Blender 2.56. In Blenders camera perspective it looks fine (seamless), but when rendering the texture has a seam (please compare middle part of attached picture; the white blobs should all have about the same size). The texture and the camera are inside the sphere!
Now, what I noticed is that if I look in the preview area of the texture tab I see the same seam as in a rendered picture:
But then, if I switch the preview to ‘Large sphere with sky’ it looks correct as in the ‘UV/Image editor’. So I was wondering if I am just missing the right option here to make the rendered output look like in the ‘UV/Image editor’??
It depends what you want as a final result. If it’s just the render from your camera you can set the Mapping to Generated and the Projection to Sphere. Because of the orientation this gives to the image mapped to your sphere you’ll need to swap the X and Z options.
You can make stars smaller by increasing the Size value