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JCDenton

Is this aliasing?

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EmDeeZee

The same thing happens for images. Downsampling is lossy, and upsampling is just the generation of a higher resolution image/mesh, which is not guaranteed to be the same as the original. The loss of information prevents perfect reconstruction, which degenerates over time.

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WonderWoman

I realized that this is exactly what happened when I was playing with my Scotty3D after I implemented upsample() and downsample()

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wenere

It's sad we cannot recover a broken image...