Pencil+ 4.05 Line for Blender is the latest add-on from PSOFT. In this update, version 4.05, support for viewport rendering has been added. This feature allows you to render image sequences from animations in a mode that's close to real-time, enabling you to preview the results.
In previous updates, the ability to export lines to EPS format was added.
Pencil+ 4.05 Line for Blender is compatible with Blender 3.0 and above, but only for Windows 10 and higher. The add-on is free, and its source code is available under the GNU Public License. Pencil+ Render is available for Windows 10 and above. The cost of a standalone license is around $474, and a network license is around $711.