Jacco Bikker 🎦

The #MSX2 game DELTA (entry #30 for #MSXDev25) has been patched to v1.01 to address many of the gameplay concerns: Track layouts have improved, insta-deaths replaced by an energy bar and much more. Scores can be shared online via qr-codes as well!
Play v1.01 here: www.file-hunter.com/MSXdev/?id=d...

I am currently listening in on a conversation between two first year IGAD / BUas Games students where one student is explaining to the other how ASVGF deals with dynamic light sources.
Tears in my eyes.

Pretty sure you really wanted to see all the 14 uniform polyhedra with only regular 3, 4, 6 or 8-gons as faces today

Real-time Rendering with a Neural Irradiance Volume
Delivering fast inference (~1ms/frame), a tiny memory footprint (1-5MB), 10x quality gains over probe-based methods @ equivalent mem budgets, bringing neural rendering within reach of consumer hardware without RT or denoising.
arnocoomans.be/eg2026

YouTube video by Gamefromscratch FragCoord - Shadertoy 2.0?

youtu.be/o16gPvcVMBY

Graphics Programming weekly - Issue 429 - February 22nd, 2026 www.jendrikillner.com/post/graphic...

MSXdev25 #30 - DELTA

Play online: file-hunter.com/MSXdev/?id=d...
Have fun!

#MSX

YouTube video by daivuk How I made a shooter game in 64 KB

Highly recommend this video, which is a super deep dive into the techniques used to create a 64kb demoscene-style '90s FPS:

www.youtube.com/watch?v=qht6...

Yes, so a low res map that catches 95% of the opaque or fully transparent pixels. For the remainder, use your current method.

The opacity map is just your early-out test.

Is using opacity micomaps an option? A bit per pixel for alpha testing may also help.

DELTA for #MSX2 is now available to play:
www.file-hunter.com/MSXdev/?id=d...
Developed together with Peter van Dranen of Breda University, DELTA is a full 3D game for an 1986 8-bit platform, running at 20fps. This uses an 8MB ROM and Konami's custom sound chip.

I've been working with Spherical Gaussians recently as a representation for irradiance in realtime raytracing.

Ended up deriving quite a few new approximations relating to SGs and diffuse lighting. Ended up with something both cheap and accurate. Check it out:

www.shadertoy.com/view/WX3fRB

🧵 I've been experimenting with caching the best lights in world space to improve NEE sampling. Inspired by ReGIR, MegaLights, and www.yiningkarlli.com/projects/cac....

Graphics Programming weekly - Issue 428 - February 15th, 2026 www.jendrikillner.com/post/graphic...

Dear ImGui 1.92.6 released!
github.com/ocornut/imgu...
~80 fixes/improvements/additions
(incl. new default scalable vector font matching classic font, color markers on multi-components widgets, many fixes for fonts, tables, tree nodes, text input, navigation, viewports, backends...)

Dutch news NOS today shows an MSX2 on their frontpage. :) Celebrating 40 years of electronic banking. It's a Philips VG-8235, a rather pretty device.

Glorious! I am using "Fenster" right now for TinyBVH examples, but if this starts gaining Linux / Apple support, I would move over right away. Love the 13h vibe.

High-Performance Graphics 2026 CFP High-Performance Graphics 2026 Call for Participation

In 2026, I reprise my role as High-Performance Graphics papers chair, joined by Markus Kettunen.
The papers deadline is 8 weeks from now. Submit your performance-oriented graphics research and present it in LA, just before SIGGRAPH (July 17-19 2026)!
www.highperformancegraphics.org/2026/call-fo...

Here are some techniques I discovered through 14 years of shader programming:

Great tool! Looks like I am in great company. :) Made several new contacts too today!

Well Sony basically kept doing that.

We had the Grand Finals of the Teapot Rendering Competition this week. These are original scenes by students at the #UniversityofUtah, rendered using their own ray tracers written in C++, commemorating the famous #UtahTeapot. You can see them all here:
graphics.cs.utah.edu/trc/
#raytracing

Cornell box rendered by ray tracing using the pinhole camera model and the camera model with radial distortion - a comparison.

Want to build your own ray tracer or path tracer on AMD GPUs? Our #Raytracing using #HIP paper covers:

🎇 The essential math
🎇 Camera setup, intersections, NEE, BVH
🎇 How to accelerate everything with HIPRT

Find it with our papers: gpuopen.com/learn/public...

30MB PDF: gpuopen.com/download/202...

Marcin Zalewski informed me that his blog post on real-time hair rendering using ray tracing is now available:
mmzala.github.io/blog/hair-ge...
This is nice work, in which he compares NVidia's hardware accelerated hair to several alternatives, including Reshetov's Phantom Ray Hair Intersector.

Graphics Programming weekly - Issue 426 - February 1st, 2026 www.jendrikillner.com/post/graphic...

Preparing #DELTA for #MSX2 / #MSXDev25! Final beta testing, bug fixing, polishing and tweaking art with Peter van Dranen. Testing on a beautiful Sony MSX1 with "Goa'uld" (instead of z80) for MSX2+ functionality, and the awesome MSX laptop (FPGA). Development hardware: Carnivore 2 and Pico+. Joy!

Buffer
vec2 p=(FC.xy*2.-r)/r.y;
float l=length(p)-.6,a=atan(p.y,p.x)+t*.5;
o=tanh(.3*(.7+vec4(-p,p))*dot(p,cos(t+vec2(0,2)))/length(vec2(min(l*4.,l)*4.,cos(a*8.)-.9)));

New post on how to do real-time diffuse global illumination using surfels and #WebGPU: juretriglav.si/surfel-based... #threejs

GitHub - BoyBaykiller/IDKEngine: OpenGL Toy-"Engine" with Wavefront Path Tracer and Rasterizer with Voxel Cone Tracing/Global Illumination OpenGL Toy-"Engine" with Wavefront Path Tracer and Rasterizer with Voxel Cone Tracing/Global Illumination - BoyBaykiller/IDKEngine

Awesome writeup on the power of pre-splitting for producing high-quality BVHs:
github.com/BoyBaykiller...
One interesting quote: "You may notice PreSplitting improves performance but increases the SAH cost. SAH is not a perfect predictor of performance."