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According to Wikipedia, Anti-Grain Geometry (AGG) is a high-quality 2D rendering library written in C++. It features anti-aliasing and sub-pixel resolution.


  • According to the BuildMatrix page,
    • AGG has the best quality output of all the renderers.
    • All rendering is done in software.
    • AGG is not particularly heavy on FP calculations.
    • AGG has been the default renderer since Release 0.8.1.
  • Udo at Nova Systems added the 2D backend for Gnash using AGG, and framebuffer gui support.
  • According to the Glossary, AGG is faster than OpenGL on systems without hardware graphics acceleration, and as of Release 0.7.2 it is the more (most?) feature complete renderer.