Large-scale semi-discrete optimal transport with distributed Voronoi diagrams, Final version available here: www.sciencedirect.com/science/arti...

Most people: I cant understand why you like math so much, math is boring Meanwhile in math:

here's a video demo of my little desktop shadow renderer (calling it deskshade for now). i've also added the ability to set keyframes at different times of day and interpolate between them! #screenshotsaturday #indiedev

very successful porting this for pathtracing usage in Daedalus, neat to be able to look at these patterns with so many spheres

messing with parabolic reflectors

If you're a fan of the movie Sneakers, the late Robert Redford (RIP) or just geeky things, you can ssh into [email protected] and watch the movie in glorious 24-bit colour ANSI :) Enjoy!

Graphics Programming weekly - Issue 409 - September 21st, 2025 www.jendrikillner.com/post/graphic...

Golden light #macro #nature #photography

very successful porting this for pathtracing usage in Daedalus, neat to be able to look at these patterns with so many spheres

Vintage radio dials from the 1930s

Differentiable rendering has transformed graphics and 3D vision, but what about other fields? Our SIGGRAPH 2025 introduces misuka, the first fully-differentiable path tracer for acoustics.

forgot to put this up somewhere so here you go. visualize your favorite zlib stream! lynn.github.io/flateview/

Sacred places

If you're curious about how Boost.PFR works, this blog article explains the basics: akrzemi1.wordpress.com/2020/10/01/r... It's clever but not too crazy! I definitely see potential uses for it

I was trying to think of other ways of presenting panoramic images that are awkward to post...

Art by • Daniel Merriam

found a simple little iterative algorithm for sphere packing on the GPU, uses a lot of memory and it's not fast but it works... www.shadertoy.com/view/mtfcDf - basically you keep a minimum distance for every pixel + identifier for nearest sphere, it's building up a voronoi-type structure

Just stumbled upon this ancient PcPersective article on real-time ray tracing.. In 2008. :) pcper.com/2008/06/ray-... It details the story of nine students (Karim, Wussie, Rick, Jan, Rutger, Trevor, Mathijs, Roel, Wilco) who worked in various roles on CPU-ray traced games using the Arauna engine.

TECHNLGY/RAY.GIF

Just spent some time digging through old Maxar/DigitalGlobe blogs to find a reference image and found this incredible capture of Mt Fuji. Incredible. The satellite was only three degrees above the horizon when it captured this image. blog.maxar.com/earth-intell...

messing with parabolic reflectors

SPACE/NEPTUNE5.GIF

Kevin Hughes, British, b. 1947 Lane to the Sea Watercolour on paper

Finally a virtual library I can live with. monogon.net/books/

Shapes

Commonly known as the Pacman nebula due its resemblance to the video game character, this is NGC 281, an emission nebula in Cassiopeia, at a distance of around 9000 light years. I took this through my small telescope during August. 15 hours total exposure, processed in the SHO Hubble palette 🔭

something mentioned in passing during a talk on materialX at HPG - something I had never heard of, I guess it must be taken for granted in certain industries - fresnel weight term on emissive surfaces is subtle, adds a lot of interesting character, almost subsurface-y

experimenting with using textures from polyhaven to displace a plane SDF

RayGaussX: Accelerating Gaussian-Based Ray Marching for Real-Time and High-Quality Novel View Synthesis Hugo Blanc, Jean-Emmanuel Deschaud, Alexis Paljic tl;dr: empty-space skipping and adaptive sampling+reordering of primitives&rays+scale-regularization arxiv.org/abs/2509.07782

Optical blur (PSF) is a laundry list of degrading effects, e.g. defocus, diffraction, and aberrations.
 It’s hard to calibrate as it varies with sensor position, focus, target distance & image plane location.
 We introduce Lens Blur Fields—tiny MLPs that can model this high-dimensional PSF.

Graphics Programming weekly - Issue 407 - September 7th, 2025 www.jendrikillner.com/post/graphic...

Every lens leaves a blur signature—a hidden fingerprint in every photo. In our new #TPAMI paper, we show how to learn it fast (5 mins of capture!) with Lens Blur Fields ✨ With it, we can tell apart ‘identical’ phones by their optics, deblur images, and render realistic blurs.

Fantastic, interactive article about realtime blur algorithms by FrostKiwi! blog.frost.kiwi/dual-kawase/

米街に向かう 9 #art #photo #photography #alley #lanterns #temple #nightphotography #streetphotography #EastCoastKin ©️skinskin

Archival footage like this of a place that no longer exists is the kind of ref you should just let wash over you and watch it when it suddenly appears in your recommendation like this just did for me. A Space is not just how it looks but its how its used and the people that do so and their history.

Parkkolonnade Sadová kolonáda Karlovy Vary #photography #stunday #classicmono