 	// Shared memory for the CTA
 	SmemStorage				&smem_storage;
 
+	bool 					bitmask_cull;
+
 
 	//---------------------------------------------------------------------
 	// Helper Structures

			d_row_offsets(d_row_offsets),
			d_source_path(d_source_path),
			d_collision_cache(d_collision_cache),
			work_progress(work_progress) {}




		}

		// Cull using global collision bitmask
		if (bitmask_cull) {
			tile.BitmaskCull(this);
		}

		// Cull using vertex visitation status
