Blogs / Personal blogs

Aras Pranckevičius

aras-p.info

Popular posts
10
Total points
2,310
HN comments
979
Rank
#689 personal

Visit aras-p.info → RSS feedOn Hacker News Aug 2016 – Jul 2025

Software Engineering 6Games & Graphics 6Math & Algorithms 2AI & Machine Learning 2Systems & Performance 1Programming Languages 1

1

I accidentally Blender VSE

A bit over two months ago I started to contribute a bit of code to Blender’s Video Sequence Editor (VSE). Did you know that Blender has a suite of video editing tools? Yeah, me neither :) Even the feature page for it on the website looks… a bit empty lol.

4

Curious lack of sprintf scaling

Some days ago I noticed that on a Mac, doing snprintf calls from multiple threads shows curious lack of scaling ( see tweet ). Replacing snprintf with {fmt} library can speed up the OBJ exporter in Blender 3.2 by 3-4 times . This could have been the end of the story, filed under a “eh, sprintf is bad!” drawer, but I…

6

Lossless Float Image Compression

Back in 2021 I looked at OpenEXR lossless compression options (and I think my findings led a change of the default zip compression level , as well as change of the compression library from zlib to libdeflate . Yay blogging about things!) . Then in 2023 I looked at losslessly compressing a bunch of floating point data…