Karl

We optimized draw calls by 99% (lol) in Hidden Folks 2 by writing some tools to find all textures used in a level, generate a level-specific atlas, and replace individual texture references with atlas textures. Thread below 🧵👇🏼 #godotengine

I spent the last month obsessed with finding colors that can't be displayed on a conventional screen. This is what I found. moultano.wordpress.com/2026/06/19/w...

For anyone who couldn't make it to GodotCon, the recording of my talk "Integrating Vulkan Ray Tracing in Godot" is now up on YouTube! #Godot #Vulkan #RayTracing

INTRODUCTION TO SPHERICAL HARMONICS FOR GRAPHICS PROGRAMMERS finally done. gpfault.net/posts/sph.html

Did you know you can set up a scene and render it to a texture without any nodes in #Godot, by directly using the RenderingServer? We automatically generate billboard sprites for meshes this way. There's not much info about the RenderingServer online, so I wrote about it: hexaquo.at/pages/using-...

'A simple (perfect) life' - my spring landscape is finally finished! An apple orchard in bloom, old railway, sheep with their lambs and an allotment being prepared for growing :) Zoom in to see all the other tiny details too... I think this might be my favourite aerial embroidery I've ever done!

Implemented a variable-density Poisson disk sampler as a C++ GDExtension for #Godot: github.com/boku-ilen/go... It generates random points with a variable density, based on e.g. an image. should be very useful for scattering vegetation. based on this article: www.vertexfragment.com/ramblings/va...

I just open-sourced a real-time datamosh CompositorEffect for Godot 4.4+ using motion vectors and temporal accumulation. Demo scene and presets included. github.com/goosegarden/... #Godot #gamedev

Orchard #godot #gamedev

Graphics Programming weekly - Issue 423 - January 11th, 2026 www.jendrikillner.com/post/graphic...

Fractal mitosis 3. #metalrt #rendering

#godot #gamedev

Lens Flare update: exposed all configurable parameters now. There's probably still a lot of potential for performance optimization, but I'd say it's somewhat usable :) You can check it out here, should work in any project (though requires some HDR care): github.com/kb173/godot-... #Godot #gamedev

Gaussian splats are quite the rage lately (for good reason). Yet the technique is actually quite old!
 35 years ago, Lee Westover created the worlds first splat with the “UNC Head” dataset. A high-res CT scan...much too detailed for computers at the time.

If you want your #Godot game to look like Battlefield 3, I got you

My "No Graphics API" blog post is live! Please repost :) www.sebastianaaltonen.com/blog/no-grap... I spend 1.5 years doing this. Full rewrite last summer and another partial rewrite last month. As Hemingway said: "First draft of everything is always shit".

Finally learning CompositorEffects #Godot Lens flare based on this blog: john-chapman-graphics.blogspot.com/2013/02/pseu...

Graphics Programming weekly - Issue 419 - December 7th, 2025 www.jendrikillner.com/post/graphic...

Good idea using gaussians for tiled floor vegetation: yunfan.zone/gswt_webpage/ #3dgs #gamedev #rendering

I often talk about bent normals for billboards, and I keep having to mention the "if (!FRONT_FACING) NORMAL = -NORMAL" workaround for correct backface lighting. I realized I could fix that myself, so I opened a PR for an intuitive material option and render_mode: github.com/godotengine/... #Godot

I don't understand how they could get (?:(?:\"|'|\]|\}|\\|\d|(?:nan|infinity|true|false|null|undefined|symbol|math)|\`|\-|\+)+[)]*;?((?:\s|-|~|!|{}|\|\||\+)*.*(?:.*=.*))) so wrong

On my way home from #GodotFest. Thanks so much to everyone for this incredible event! Hope to see you all again soon :) My presentation on foliage rendering in #Godot is already up on YouTube: www.youtube.com/watch?v=U2nB... And I also shared my slides here: slides.com/hexaquo/plan...

I’m now seeing a talk about large scale vegetation rendering in Godot, by Karl Bittner. He mentions there is an open source alternative to speedtree, which he has barely heard mentioned: EZ tree: www.eztree.dev It even has an in-browser 3D viewer in which you can try different seeds for the trees!

on my way to #GodotFest! hope to meet some of you there :)

The easiest way to create action lines in a shader is to take some noise and convert its UVs to polar coordinates 🙂 #godot #indiedev #gamedev

🔜 #GodotFest Want to see these slides (and many more) live? Then join my presentation on November 11th at GodotFest in Munich :) #godot #gamedev

Graphics Programming weekly - Issue 413 - October 19th, 2025 www.jendrikillner.com/post/graphic...

Sharp Bilinear Filters: big clean pixels for Pixel Art #gamedev #gamedevelopment #indiedev #pixelart #gameart

Here's how to scatter objects in Blender 5.0 with just a few nodes ✨

Trying out 2 different approaches to leaf rendering on trees. The first is a custom mesh, where each quad of the mesh is extended along the normals. The second is are multimeshes of quads, where the normal is based on the vertex position relative to the center of the multimesh. #GodotEngine

Graphics Programming weekly - Issue 411 - October 5th, 2025 www.jendrikillner.com/post/graphic...

So-called #genAI means the abolition of the future through the proliferation of endless streams of stochastically rendered generic pasts. Having turned large parts of the cultural archive into training data, it now traps us in a foreverized pastness, a 24/7 nostalgia for a past that never existed

New blog post: Outlining an alternative path to learn graphics programming. themaister.net/blog/2025/10...

In light of EA's upcoming change of ownership... here's your annual reminder that Will Wright's original GDC 2005 demo of Spore was one of the most incredible game demos every presented, before the game was utterly and totally ruined by EA's meddling. www.youtube.com/watch?v=ofA6...

This is not only introducing a new approach to OIT, but it's a comprehensive overview of various OIT techniques and a history of transparency in COD. One thing that seems to be missing is CPU-side depth sorted transparency, which I implemented in SHG's COD branch and IIRC Treyarch had also

It sure is windy here 🍃 Rendering is based on this great tutorial (hexaquo.at/pages/grass-...) by @hexaquo.at Placement is done with ProtonScatter (github.com/HungryProton...) by @hungryproton.bsky.social #GodotEngine #IndieDev #shader #grass #rendering

Graphics Programming weekly - Issue 408 - September 14th, 2025 www.jendrikillner.com/post/graphic...

How to make a light beam shader in godot + download

Mother nature has created a beautiful place for us. The green and lush forests of the world calm our souls... until we have to render them! Let's hear Karl Bittner's virtual gardening wisdom @ #GodotFest!

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.