UlyssesZhan<p>I probably have discovered a thousand bugs in softwares developed by people other than myself, but this time, for the first time in my life, I found a bug without producing a buggy phenomenon first but by staring at the source codes and deducing mathematical formulas by hand. That was an amazing experience. I wrote a blog article about it: <a href="https://ulysseszh.github.io/programming/2025/07/17/blur-filter.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">ulysseszh.github.io/programmin</span><span class="invisible">g/2025/07/17/blur-filter.html</span></a></p><p><a href="https://mastodon.social/tags/development" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>development</span></a> <a href="https://mastodon.social/tags/debugging" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>debugging</span></a> <a href="https://mastodon.social/tags/graphics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>graphics</span></a> <a href="https://mastodon.social/tags/graphicsprogramming" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>graphicsprogramming</span></a> <a href="https://mastodon.social/tags/imageprocessing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>imageprocessing</span></a> <a href="https://mastodon.social/tags/shader" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>shader</span></a> <a href="https://mastodon.social/tags/pixijs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pixijs</span></a></p>