Geometry Types¶

graph TD
    A[Geometry] --> B[Points]
    A --> C[Voxels]
    A --> D[Grid]
    A --> E[FactorGrid]

    B -->|neighbor search| F[PointConv]
    C -->|hash table kernel map| G[SparseConv3d]
    D -->|regular indexing| H[GridConv]
    E -->|factorized views| I[FactorGridConv]

Each geometry type pairs with specific convolution operations. Points uses real-valued neighbor search (KNN or radius). Voxels builds a kernel map via hash table lookup. Grid and FactorGrid use regular grid indexing.