Synfig Latest Version
Synfig Studio is a free and open-source 2D animation software, designed as powerful industrial-strength solution for creating film-quality animation using a vector and bitmap artwork. It eliminates the need to create animation frame-by frame, allowing you to produce 2D animation of a higher quality with fewer people and resources. Synfig Studio is available for Windows, Linux and MacOS X.
Most elements are vector-based, and all layers are parametrically generated, hence even when changing the target resolution of a project, the only pixelation will occur in imported raster images, not the built-in components. The draw tool already reads the pressure sensitivity channel off your favorite tablets, for natural line weighting, and more to come!
Animation-keyframes are automatically interpolated by the computer, resulting in smooth motion. By using floating-point math in the image calculations, HDRI processing allows canvases to internally understand a far greater range of pixel luminance, resulting in better lighting effects, and improved color composition. There are many more features that can be read from developer’s site.