<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>hxtqy · 千面之眼</title><description>CS、AI、Math、Poem 四类笔记。</description><link>https://hxtqy.com/</link><language>zh-cn</language><item><title>把虹膜画在 GPU 上</title><link>https://hxtqy.com/writing/cs/iris-render-loop/</link><guid isPermaLink="true">https://hxtqy.com/writing/cs/iris-render-loop/</guid><description>一次渲染循环的拆解：几何怎么排、凝视怎么阻尼、滚动怎么解构，以及为什么最后没有用 bloom。</description><pubDate>Mon, 12 Oct 2026 00:00:00 GMT</pubDate><category>cs</category><category>webgl</category><category>glsl</category><category>threejs</category></item><item><title>终态优先：别把正文交给动画时间线</title><link>https://hxtqy.com/writing/cs/terminal-state-first/</link><guid isPermaLink="true">https://hxtqy.com/writing/cs/terminal-state-first/</guid><description>一次浏览器验证发现，入场动画把文字的不透明度押在 requestAnimationFrame 上；后台标签页里，56 秒后标题仍然只有 0.34 的不透明度。</description><pubDate>Mon, 05 Oct 2026 00:00:00 GMT</pubDate><category>cs</category><category>animation</category><category>gsap</category><category>performance</category><category>accessibility</category></item><item><title>重读注意力：它到底在近似什么</title><link>https://hxtqy.com/writing/ai/attention-reread/</link><guid isPermaLink="true">https://hxtqy.com/writing/ai/attention-reread/</guid><description>把 softmax 注意力还原成一种核平滑：查询在键上做加权平均，温度决定它有多&quot;自信&quot;。</description><pubDate>Thu, 24 Sep 2026 00:00:00 GMT</pubDate><category>ai</category><category>transformer</category><category>attention</category><category>reading</category></item><item><title>Parseval 恒等式的一个短证明</title><link>https://hxtqy.com/writing/math/parseval/</link><guid isPermaLink="true">https://hxtqy.com/writing/math/parseval/</guid><description>从正交投影的角度看傅里叶系数，Parseval 恒等式就只是勾股定理在希尔伯特空间里的样子。</description><pubDate>Tue, 08 Sep 2026 00:00:00 GMT</pubDate><category>math</category><category>fourier</category><category>hilbert-space</category><category>proof</category></item><item><title>夜海</title><link>https://hxtqy.com/writing/poem/night-sea/</link><guid isPermaLink="true">https://hxtqy.com/writing/poem/night-sea/</guid><description>一首关于潮汐与观测的诗。</description><pubDate>Tue, 18 Aug 2026 00:00:00 GMT</pubDate><category>poem</category><category>诗</category><category>夜</category></item><item><title>观测笔记</title><link>https://hxtqy.com/writing/poem/observatory/</link><guid isPermaLink="true">https://hxtqy.com/writing/poem/observatory/</guid><description>关于光到达得太晚这件事。</description><pubDate>Thu, 02 Jul 2026 00:00:00 GMT</pubDate><category>poem</category><category>诗</category><category>光</category></item></channel></rss>