https://dasilvagf.github.io/categories/physics/Recent content in Physics on Gabriel da SilvaHugoen-us<a href="https://creativecommons.org/licenses/by-nc/4.0/" target="_blank" rel="noopener">CC BY-NC 4.0</a>Fri, 26 Mar 2021 00:00:00 +0000https://dasilvagf.github.io/posts/2021/03/a-more-in-depth-introduction-to-radiance/Fri, 26 Mar 2021 00:00:00 +0000https://dasilvagf.github.io/posts/2021/03/a-more-in-depth-introduction-to-radiance/<h2 id="introduction">Introduction</h2> <p>Back in 2017, I wrote a <a href="https://dasilvagf.github.io/posts/2017/11/irradiance-radiance/">post</a> on the basics of Radiance and Irradiance. Although nothing is wrong with the concepts explained in the text, there are some flaws in how the core fundamentals are presented. This post is a more detailed introduction to the topic, with the intention of better explaining those fundamental quantities. Beware! This is a BRAIN DUMP!</p> <h2 id="so-what-is-radiance">So, What is Radiance?</h2> <p>Normally, Radiance is thought of as energy per ray of light. This makes sense and is coherent with the units of radiance:</p>https://dasilvagf.github.io/posts/2017/11/irradiance-radiance/Mon, 13 Nov 2017 00:00:00 +0000https://dasilvagf.github.io/posts/2017/11/irradiance-radiance/<p><em>This is an updated repost from my old, deactivated blog or from notes of my past studies. The date follows the original time of writing.</em></p> <h2 id="introduction">Introduction</h2> <p>Rendering is an evolving science: every day new papers are published, new posts show up on our Twitter feed and we learn new techniques, tricks and mathematical proofs. With new technologies come new topics to be studied and applied, but the foundations stand still as the building blocks, constant over time (most of the time, at least!).</p>