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  <author_name>ktkray</author_name>
  <author_url>https://blog.hatena.ne.jp/ktkray/</author_url>
  <blog_title>ktkrayの日記</blog_title>
  <blog_url>https://ktkray.hatenadiary.org/</blog_url>
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  <description>This is the rendering equation of computer graphics, which is a very basic principle to define the interaction of the ray hitting the surface of an object. This was made in public in 1986, almost 20 years ago. Path tracing softwares, including my software &quot;ktkray&quot;, should follow this equation or res…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2007-02-12 00:00:00</published>
  <title>The Rendering Equation</title>
  <type>rich</type>
  <url>https://ktkray.hatenadiary.org/entry/20070212</url>
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