Well, if you generate a tangent based normal map, texture your entity, and make all your lights blue, it produces a decent enough effect. The edges aren't correct, but it might pass for me...
Try it out. Arrow keys move the camera around the sphere. I don't really notice much difference using the cubemap colour normals too much.
http://www.rosscrooks.pwp.blueyonder.co.uk/kid-08.zip
Try it out. Arrow keys move the camera around the sphere. I don't really notice much difference using the cubemap colour normals too much.
http://www.rosscrooks.pwp.blueyonder.co.uk/kid-08.zip