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I'm looking forward to the first native optimized WebGPU implementation of 3DGS rendering. I'm also curious how scene data could be compressed and decompressed

• raphlinus 3y ago
  I'm also looking forward to it. One of the big challenges is the sorting, for which I'm unaware of a good WebGPU implementation. I have some more notes on this question in a Zulip thread[1]. [1]: https://xi.zulipchat.com/#narrow/stream/197075-gpu/topic/Gaussian.20splatting https://xi.zulipchat.com/#narrow/stream/197075-gpu/topic/Gau...
  • boywitharupee 3y ago
    Does the sorting need to be done in the renderer, or is that part of the training process?
    • raphlinus 3y ago
      It needs to be done in the renderer. I think it's doable though, the FidelityFX library looks like it can be ported, it'll just run a bit slow because of the lack of subgroups. This particular library isn't based on a fancy scan implementation, as the state-of-the-art CUDA implementations are. There's a bit more followup in the linked Zulip thread.
• blovescoffee 3y ago
  I’m working on this right now!