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Possible to make the sam3 segmenting nodes work without triton? #181

@Utpal95

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@Utpal95

On my main PC with a newer GPU, there are no problems, however I also have an older PC using a gtx 1070 (using Pytorch 2.9.1 and cu126).
Since triton isn't supported on this older card, the nodes involving SAM3 fail to load. I have installed and can run SAM3 models on the system just fine, so I suppose it should be possible to run the RMBG-sam3 nodes without issue.

Unfortunately it seems that Triton is set as mandatory to use the SAM3 nodes. Is it possible to implement an attention fallback system, so that systems without Triton can also use the RMBG SAM3 nodes?

Thanks.

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