autotrace
rayopt
| autotrace | rayopt | |
|---|---|---|
| 3 | 2 | |
| 478 | 236 | |
| 2.9% | 2.1% | |
| 7.9 | 2.7 | |
| 6 days ago | 9 months ago | |
| C | Python | |
| GNU General Public License v3.0 only | GNU Lesser General Public License v3.0 only |
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autotrace
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Inkscape as a purely command line tool
If you look at the installation instructions for the extension, it links you to more recent releases for autotrace with some installers.
- Watertight vector maps from raster images
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Inkscape Ray Tracing – an extension for Inkscape to draw optical diagrams
There is also autotrace: https://github.com/autotrace/autotrace
rayopt
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this Guy Flipped an Element in an Old Lens and Got 'Magic' Bokeh
Hey, thanks for the info.
I was looking at https://github.com/quartiq/rayopt (found on HN) earlier. (Check out https://github.com/quartiq/rayopt-notebooks for examples.) I've also tinkered a bit with Lytro files; they have maybe 8 "angle" samples per "pixel" - not quite enough to do much.
My idea was to try to use something like a privacy filter (blocks some angles of light) inside a lens for the purpose of having a nonlinear bokeh falloff. One of the issues with using something like F1.2 for a portrait is that while the background will be nice and blurry, so will the ear and the nose if you focus on the eyes. But if you're able to set up a "smart aperture" that filters out rays that are just out of focus, and keep the ones that are either perfectly in focus or way out of focus, you'd get a really blurry background while keeping the depth of field workable.
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Inkscape Ray Tracing – an extension for Inkscape to draw optical diagrams
I've played around a bit with that myself, modelling a Voigtländer Color-Skopar.
[1] https://github.com/quartiq/rayopt
What are some alternatives?
inkscape-centerline-trace - A bitmap vectorizer that can trace along the centerline of a stroke. The builtin inkscape 'trace bitmap' can only trace edges, thus resulting in double lines for most basic use cases. It uses 'autotrace -centerline' and an optimal threshold to vectorize a pixel image.
rayopt-notebooks - RayOpt Example IPython Notebooks
Inkscape-raytracing - [Moved to: https://github.com/damienBloch/inkscape-raytracing]
gdal-js - This is an Emscripten port of GDAL, an open source X/MIT licensed translator library for raster and vector geospatial data formats.
UC2-GIT - Respository for Open-Science modular microscope system.
kepler.gl - Kepler.gl is a powerful open source geospatial analysis tool for large-scale data sets.
Astree - Astree is a free open source optical ray tracing and design software