Is there any software that will take a 3d model (in any format) and allow you to render it as a 2D vector image (preferable as either an .SVG or .PDF)?

My intention is to render LEGO building instructions this way. While there are many tools that let you view them or generate nice, rasterized output, I'd really like to be able to generate vectorized output. Textures are not needed, and hidden line removal may not be needed.

I could use a tool that works on any platform (although my preference is OS X, Linux, then Windows). Open source is preferred.

If no one knows of a tool that does this, does anyone have a good recommendation of something to hack on and add a feature to output via Cairo?

4 Answers 4


Google Sketchup has an option to print images using 2D vectors. If you have a "print to PDF" option on your computer, you can then have a nice .pdf. If necessary, one can import the .pdf into Inkscape to generate an .SVG file.


You don't find vector output for renderers since they do a lot of work on calculating the right light on the surfaces. This is a hard problem already, but outputting that in a vector format will be as hard.

If you require simpler line art and are fine with some manual tweaking give PantoGraph for Blender a try.

  • Once a renderer has gone to the trouble of transforming polygons and lighting their vertices, it could simple emit the result as a 2D polygon. Pantograph does sound interesting; thanks. Sep 13, 2010 at 17:36

If you have a wallet, there is a package (I believe windows only) called 'Deep Exploration' that will open most 3D CAD and model formats. You can easily output to 2d vector formats including pdf and AI.

Price is a little steep, yet this package is specifically designed to generate assembly instructions.

  • That sounds really interesting. Given that you have to contact them for a quote, it is likely well beyond what I am willing to pay. Feb 21, 2012 at 3:17

There is an experimental and seemingly abandoned vector-renderer for Blender, called PantoGraph. According to description, it can generate .SVG output. Never tried myself though.

See here: http://severnclaystudio.wordpress.com/bluebeard/

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