The BLI_bitmap had the potential to eat a lot of memory as it was a dense map between all the vertices in the mesh. Now we instead use BLI_edgeset so that we only store data when needed (creating a spare map instead of a dense).
The BLI_bitmap had the potential to eat a lot of memory as it was a dense map between all the vertices in the mesh. Now we instead use BLI_edgeset so that we only store data when needed (creating a spare map instead of a dense).