File talk:AnimWIKISTAR-laurier-WT.gif

Reconstruction of animation

The original animation used incorrect width scaling for the individual frames, apparently a series of linear steps. This caused an unnatural "breathing" or "bellows" effect as the image got narrower and wider. To create a realistic rotation effect, I started with a 5x scale version of the static PNG image, replicated it an appropriate number of times and applied a width factor of cos(n*4.5°) to successive frames for a series of 4.5° rotation steps, 80 in all for a full 360° "rotation". Also, since the "W" is asymmetric, it required doubling the number of frames compared to the original animation in order to simulate the front and back views of the image, something that was overlooked in the original animation. The final version was saved at 1/5 scale, i.e., the original 100x100 pixel size. The reason for working in large scale was to minimize 1-pixel jitter in the animation due to limited numeric resolution during width scaling. By working at five times scale, then reducing the image size, the apparent jitter was reduced to one-fifth, essentially negligible. — Quicksilver^@ 19:30, 26 November 2014 (UTC)