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[1/3/3] The texture of stars on the celestial sphere

Not only the spiral galaxy but c
a lot of stars on the celestial sphere are required to render to make impressive CG images. However it had a technical problem to render point objects that theoretically has no finite areas by the ray tracing method. To solve this problem I revised the CG program to treat stars as special objects by applying a special extended rendering method. The following movie shows an example when we are watching the celestial sphere including a galaxy and a lot of stars.
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