The primitive manager contains spatial data structures used to efficiently render primitives. Once a primitive is constructed, it must be added to the primitive manager before it will be rendered.
  Add | Adds a primitive to the manager. Primitives must be added to the manager to be rendered. | 
  Clear | Removes all primitives from the manager. | 
  Contains | Determines whether the manager contains a primitive. | 
  Remove | Removes a primitive from the manager. The primitive is no longer rendered unless it is added back into the manager. | 
  Count | Gets the number of primitives in the manager. | 
  TranslucentPrimitivesSortOrder | Gets or sets the sort order for translucent primitives in the primitive manager. This determines a trade-off between rendering speed and quality. It is only recommended to use PrimitivesSortOrderBackToFront when translucent primitives along the same line of sight cause blending artifacts. | 





