https://github.com/lancelet/raindrop

2D renderer
https://github.com/lancelet/raindrop

2d canvas graphics haskell renderer

Last synced: 3 months ago
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2D renderer

• Host: GitHub
• URL: https://github.com/lancelet/raindrop
• Owner: lancelet
• Created: 2019-07-11T07:35:13.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2020-06-14T07:16:52.000Z (almost 5 years ago)
• Last Synced: 2025-01-13T21:27:25.693Z (4 months ago)
• Topics: 2d, canvas, graphics, haskell, renderer
• Language: Haskell
• Homepage:
• Size: 83 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst

Awesome Lists containing this project

README

        
========

Raindrop

========

.. image:: https://travis-ci.org/lancelet/raindrop.svg?branch=master

    :target: https://travis-ci.org/lancelet/raindrop

.. image:: https://coveralls.io/repos/github/lancelet/raindrop/badge.svg?branch=master

    :target: https://coveralls.io/github/lancelet/raindrop?branch=master

Raindrop is a 2D renderer. It uses a signed-area scanline rasterization

algorithm, similar to the algorithm used by `Pathfinder 3`_.

.. _Pathfinder 3: https://github.com/servo/pathfinder

Approximate TODO list

=====================

- [X] Tile-based alpha stencil rendering.

- [ ] Converting paths to tiles.

- [ ] Tile filling.

- [ ] Stroking paths.

Background reading

==================

The following articles provide useful background documentation:

- `stb_truetype v2`_ describes the signed-area alpha stencil rendering algorithm

  that is generally credited to Raph Levien in the `libart` library.

- `A look at Pathfinder`_ describes the higher-level tiling that Pathfinder uses

  to identify fully-filled tiles and re-caps the signed-area approach.

.. _stb_truetype v2: https://nothings.org/gamedev/rasterize/

.. _A look at Pathfinder: https://nical.github.io/posts/a-look-at-pathfinder.html