Polymer Deficiencies
This is a list of problems in the Polymer renderer that need to be fixed.
- certain major optimizations remain to be done
 - limited to one skybox
 - no voxel support
 - showview command does not work
 - doesn't save known good geometry in savegames for use as a fallback when map effects become corrupt, revealing errors that otherwise would be avoided
 - not hooked up to TX's Sector Effector-based ROR (which remains useful for retrofitting existing maps)
 - level geometry is displayed through skyboxes when it should not