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106 lines
4.3 KiB
Markdown
106 lines
4.3 KiB
Markdown
[](http://hackage.haskell.org/package/reanimate)
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[](https://dev.azure.com/lemmih0612/reanimate/_build/latest?definitionId=1&branchName=master)
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[](https://reanimate.readthedocs.io/en/latest/?badge=latest)
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# Reanimate
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Reanimate is a library for programmatically generating animations with a twist towards
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mathematics / 2D vector drawings. A lot of inspiration was drawn from 3b1b's manim library.
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Reanimate aims at being a batteries-included way of gluing together different technologies: SVG as
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a universal image format, LaTeX for typesetting, ffmpeg for video encoding, inkscape/imagemagick
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for rasterization, potrace for vectorization, blender/povray for 3D graphics, and Haskell for
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scripting.
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In more practical terms, reanimate is a library for turning code like this:
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```haskell
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main = reanimate $ docEnv $ playThenReverseA $ mkAnimation duration $ \t ->
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partialSvg t $ pathify $ mkCircle radius
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where duration = 2; radius = screenHeight/3
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```
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... into animations like this:
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# Prerequisites
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Reanimate is built using the Haskell Tool Stack. For installation instructions, see: https://docs.haskellstack.org/en/stable/README/
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Optionally, you can install one or more of these programs to enable additional features:
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* [ffmpeg](https://www.ffmpeg.org/), enables rendering animations to video files.
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* [latex](https://www.latex-project.org/), enables mathematical typesetting.
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* [inkscape](https://inkscape.org/)/[imagemagick](https://imagemagick.org/index.php), enables SVG->PNG convertions.
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* [potrace](http://potrace.sourceforge.net/), enables PNG->SVG tracing.
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* [povray](https://www.povray.org/), enables raytracing.
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* [blender](https://www.blender.org/), enables 3D graphics.
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I highly recommend that you install at least 'ffmpeg' and 'latex'.
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# Installing / Running an example
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Reanimate ships with a web-based viewer and automatic code reloading. To get a small demo
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up and running, clone the repository, run one of the examples (this will install the library),
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and wait for a browser window to open:
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```console
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$ git clone https://github.com/Lemmih/reanimate.git
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$ cd reanimate/
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$ stack build
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$ stack ./examples/doc_drawCircle.hs
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```
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This should render the `doc_drawCircle` example in a new browser window. If you then change the
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animation source code, the browser window will automatically reload and show the updated animation.
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# Documentation
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* API reference: http://hackage.haskell.org/package/reanimate/docs/Reanimate.html
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* Design overview: https://reanimate.readthedocs.io/en/latest/glue_tut/
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* Gallery with source code: https://reanimate.readthedocs.io/en/latest/gallery/
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# Examples
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The example gifs are displayed at 25 fps.
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# Authors
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* David Himmelstrup.
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* Jan Hrcek.
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# License
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This is free and unencumbered software released into the public domain.
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Anyone is free to copy, modify, publish, use, compile, sell, or
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distribute this software, either in source code form or as a compiled
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binary, for any purpose, commercial or non-commercial, and by any
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means.
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# Acknowledgments
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* Huge thanks to 3b1b's [manim](https://github.com/3b1b/manim) which inspired this library.
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* Thanks to [svg-tree](https://github.com/Twinside/svg-tree) for their SVG library.
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* Thanks to [CthulhuDen/chiphunk](https://github.com/CthulhuDen/chiphunk) for making a 2D physics
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library easily available.
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# YouTube
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Completed animations are uploaded to the [Reanimated Science](https://www.youtube.com/channel/UCbZujyI7i6JbI-I0shPvDgg) channel.
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Animation snippets are uploaded to the [Reanimated Science Playground](https://www.youtube.com/channel/UCL7MwXLtQbhJeb6Ts3_HooA) channel.
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