Ethanfel
8d8407ec9d
Make cupy import optional so the module loads without cupy installed. Replace @cupy.memoize decorator with a simple dict cache to avoid crash at import time. Add _pytorch_softsplat() using scatter_add_ as a fallback when cupy is unavailable or tensors are on CPU. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>