When new Gaussians are added in the adaptive density step, we can sort them spatially to improve L2 cache efficiency in the forward and backward pass. This is done by sorting according to the Morton codes on the 3d means of the Gaussians. This will place spatially close Gaussians close together in memory.
When new Gaussians are added in the adaptive density step, we can sort them spatially to improve L2 cache efficiency in the forward and backward pass. This is done by sorting according to the Morton codes on the 3d means of the Gaussians. This will place spatially close Gaussians close together in memory.