beez is a vector-drawing editor/animator to create SVG animations based on W3C's specifications and Adobe's implementation. The program is completely based on Bezier cubic-interpolated shapes (you now know why it's called so). Even rectangles and ellipses are animatable curves. You can create your movie by arranging, duplicating, and giving motion & effects to the layers. Program includes (on Windows platform with Adobe SVG Viewer 2+) integrated SVG preview.
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