Red arrows highlight steps to reproduce SHREC data from which we use the last tomogram for testing. All methods except SHREC were filtered using a reverse-engineered filter (see sectionData S2) because the SHREC filtering step is under-documented. The style projections never feature the same contents as the simulated ones (see sectionData S1). Grandmodels, noiseless artificial samples containing randomly scattered particles, were created using existing models of biological macromolecular structures, represented as Coulomb density volumes.
