Blog
HPG Student Competition 2025: Percentile-based Adaptive SVGF
We describe the algorithm currently used to denoise our Quake path-tracing demo, Merian-Quake, which won first place at the 2025 High-Performance Graphics (HPG) Student Competition.
Publications
Real-Time Markov Chain Path Guiding for Global Illumination and Single Scattering
We present a lightweight and unbiased path guiding algorithm tailored for real-time applications with highly dynamic content. The algorithm demonstrates effectiveness in guiding both direct and indirect illumination. Moreover, it can be extended to guide single scattering events in participating media.
Blog
Traveler’s Guide to Colombia
Navigating this beautiful country was a bit tricky at times. For this reason I made some notes during my travel which I’ll drop here.
Publications
Continuing to Catch Up with State of the Art Continuous Integration Pipelines in Palladio–The Experience Report Strikes Back
This research paper presents a case study on the migration from Jenkins to GitHub Actions for automated builds in the development workflow for Palladio.
QuickTipp
[QuickTipp] Renew an expired GnuPG subkey
It’s that time of the year again… Let’s renew our subkeys! Checking for an expired subkey GPGs messages are not that clear when a subkey expires. For example, Git may refuse to sign a commit with the cryptic message gpg Read more…
Publications
Cost-aware Adaptive Sampling for Global Metamodeling Using Voronoi Tessellation
We introduce a novel Voronoi-based cost-aware adaptive sampling algorithm for global metamodeling that is independent of the choice of sampling strategy and metamodel. The method is evaluated on a variety of randomly generated black-box and cost functions, where it has shown to vastly outperform existing sampling strategies.
Server
KeyHelp – Der Schlüssel zum entspannten Webhosting
Webhosting mal ganz entspannt! Das verspricht das Control Panel mit schnell wachsendem Funktionsumfang und schicker Oberfläche. Kommandozeilen-Kung-Fu und Skriptmagie soll nun der Vergangenheit angehören. Im Gegensatz zu den etablierten Alternativen cPanel und Plesk gibt es KeyHelp sogar kostenlos. Zumindest wenn Read more…
Tutorials
Beautiful Plots with Matplotlib and LaTex
Stop resizing, cropping and pixelated plots. Matplotlib integrates very well with LaTex — if configured correctly.
Server
PHP-fpm unter Apache2 aktualisieren
Es ist mal wieder so weit, die aktuelle PHP-Version läuft aus und eine Aktualisierung von PHP steht an, um die neusten Sicherheitsupdates zu erhalten. Der Beitrag stellt die Vorgehensweise PHP-fpm unter Apache2 zu aktualisieren nur beispielsweise am Upgrade von 7.2 Read more…
Music
Lautsprecher selber bauen | Teil 2: Frequenzweiche
Die Frequenzweiche spielt eine entscheidende Rolle im Lautsprecher und ihre Verschaltung kann den Klang grundlegend beeinflussen, umso wichtiger ihr also einen eigenen Teil der Reihe zu widmen. Hier gehts zu Teil 1 der “Lautsprecher selber bauen” Reihe. Funktion Die Frequenzweiche Read more…