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[1/5/1/3/2/2] The image distortion of a spiral galaxy (2 of 2)

The rotation speed of the black hole increases gradually.
The view point (camera) is at the 45 degree incline position of the equatorial plane of the black hole. We can see less green area in this movie. The reason is unknown but I guess that most of all the light rays from the camera pass through the ring singularity or there may be a bug on the CG program for numerical calculation.
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