NPR for architectural visualization with Blender 2.50 and FreeStyle • Blender 3D Architect
Freestyle SVG Exporter — Blender Manual
Freestyle Linesets for more detailed linework Tutorial in Blender 2.8 - Stylized Station - Learn Stylized Art
GitHub - zippy731/vamp: Vector Art Motion Processor - Blender Add-on to remove hidden edges from meshes. Generates silhouettes and line drawings similar to Blender Freestyle