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Background geometry

Try removing the background Sphere, or just remove the texture that was applied to the inside of the Sphere. What happens if you remove the ORed flag Primitive.GENERATE_NORMALS_INWARD when the background Sphere is created?

What happens if you remove the Primitive.GENERATE_TEXTURE_COORDS flag from the Sphere

when it is created?

Load the background image into a graphics editor and experiment by modifying it. Can you see how the rectangular image was applied to the inner surface of the background Sphere?