https://jk.rubberdax.xyz/tags/jolt-physics/Recent content in Jolt Physics on Jan Kelemen - Personal siteHugoen© [Jan Kelemen](https://www.rubberdax.xyz)Sun, 27 Apr 2025 00:00:00 +0000https://jk.rubberdax.xyz/post/2025-04-27-the-invisibles/Sun, 27 Apr 2025 00:00:00 +0000https://jk.rubberdax.xyz/post/2025-04-27-the-invisibles/<p>It&rsquo;s quite easy to spend weeks making almost no visible progress on my game engine <a href="https://github.com/jan-kelemen/niku">jan-kelemen/niku</a>.</p> <div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/-syid1NaFCg?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <h1 id="shadow-mapping">Shadow mapping</h1> <p>After postponing working on shadows from the beginning of this project, I&rsquo;ve finally implemented shadow mapping in the <code>gltfviewer</code>. At the start of the video, there is a comparison of the Sponza scene rendered just with the ambient lighting, then with the added directional light and then with the shadows cast with that directional light.</p>