Issues with Spectrum TOP

I’m trying with no success to get the spectrumTOP working. Even passing in a 64x64 ConstantTOP hangs TouchDesigner, in both modes. Win10Pro, Nvidia 3090 with driver 456.38. Does CUDA need to be installed separately?

Installing CUDA 10.1 separately didn’t seem to help. And there were no errors in alt-c console.

So I left an instance of touch running in the background that had hung, and eventually it loaded. Perhaps this is first time compilation of something relating to CUDA? It takes at least 2 minutes to load, will try to nail down the exact timing. It’s maxing out a cpu core and sustaining 3MB/s read for several minutes when I load a patch that has the spectrumTOP saved.

Edit: I also seem to have run across this error.experimental_error

Moved this over to bugs.

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Based on the error message, it looks like there is a problem loading a PLY point file. Is that error repeatable? Would you be able to share the file that’s causing it?