.SPZ Gaussian Splate Format Support

vvvv gamma feature
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.SPZ support might be interesting concerning Gaussian Splats in vvvv?

The format was just open sourced by Niantic:

Blog: Open-sourcing .SPZ: it’s .JPG for 3D Gaussian splats — Scaniverse
Github: GitHub - nianticlabs/spz: File format for 3D Gaussian splats. About 10x smaller than the PLY equivalent with virtually no perceptible loss in visual quality. Offered as open source by Niantic Labs. More details at https://scaniverse.com/spz #3dgaussiansplats #gaussiansplatting

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Looks nice, but it would only help store clouds in smaller files on disc. Loading the data was never the issue, the rendering pipeline needs to be developed to display the data.

@motzi has started to develop it with @texone and me. You can expect results later this year or beginning of 2025.

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