Kate Ferris

Shapes

Methods like NeRF and Gaussian Splats model the world as radioactive fog, rendered using alpha blending. This produces great results.. but are volumes the only way to get there?🤔 Our new SIGGRAPH'25 paper directly reconstructs surfaces without heuristics or regularizers.

my first successful implementation of importance sampling - traced emission spectra taken as input PDFs, compute CDF and then iCDF via projection of 2d points along the graph... upload the result to the GPU as a texture with linear filtering and sample with a random number 0..1

this is HP sodium

base SDF, displaced, then with materials

Bunnies are all playing volleyball on the beach, while wearing aviator glasses and dog tags like in the movie "Top Gun". One bunny runs to intercept a spike, while his teammate is distracted.

Daily bunny no.3022 is playin' with the boys

YouTube video by Wookash Podcast Legendary Software Rendering Era | Sean Barrett

For that weird, narrow segment of technically-minded programmers who want to know how we programmed 3D graphics in the 90s and also want to know about 80% of the stuff I programmed before RAD, I sat down for a 5 hour interview on the Wookash Podcast.

www.youtube.com/watch?v=T1tX...

Keeping the pencil lines. Feels better than going in and inking everything

[ #art #fanart #gundam #gquuuuuux #nyaan #machu #nyachu ]

I’m sorry but this is fucking sick.

messing with this again, converted to a forward approach... it's more efficient at resolving the caustics, but I haven't figured out what to do for the artifacts where it clips in bright areas and the aliasing patterns that happen near the refractive surfaces... something to do with the line drawing

I'm surprised you want to do postfx bokeh instead of lens sampling, since you have an RT pipeline 🤔 is it just that postfx bokeh is more common in industry?

Little update on my renderer Seraph. 🧵

I got tiled light culling implemented, so now I'm focusing on shadow techniques. I reimplemented my CSM code and hard RT shadows code, will be experimenting with raytraced soft shadows now.

good luck ❤️ get well soon

*chef's kiss* (arxiv.org/abs/2506.08872)

Illustration of six species of crocodilians (from top to bottom, left to right: american alligator, freshwater crocodile, chinese alligator, morelet's crocodile, dwarf caiman and gharial) in a cutesy simplified style on a flat colored teal background with ripples of water and lilypads.

🐊 It is world croc day! 🐊

Caeruleum Sora

Using ReSTIR to importance sample the brightest pixels on an image

www.shadertoy.com/view/XfycWw

Over the last two winters, I have had some fun with creating ice abstracts in my yard and then photographing them--a little collaboration with nature. Here are a few recent favorites.

You can read a little more about the process and see more photos here: smallscenes.com/blog/backyar...

I got up close with a Portuguese man-o-war and my god these animals are shockingly beautiful.

프리스비!

Rendering nerds! Check out our latest work "Vector-Valued Monte Carlo Integration Using Ratio Control Variates" that has just gotten the best paper award at SIGGRAPH 2025. This paper presents a method that reduces variance of a wide range of rendering and diff. rendering tasks with negligible cost.

Sphere surface partitioning

Halvorsen attractor in Sponza.
#metalrt #rendering

Plankton of symmetric attractors
Made with #sympy #numpy #matplotlib

Continuing my crossbreed series, have some bulbies 🌱🌿🍀

GitHub - mxcop/src-dgi: Surfel Radiance Cascades Diffuse Global Illumination Surfel Radiance Cascades Diffuse Global Illumination - mxcop/src-dgi

I decided to open source my implementation of Surfel Radiance Cascades Diffuse Global Illumination, since I'm not longer actively working on it. Hopefully the code can serve as a guide to others who can push this idea further :)
github.com/mxcop/src-dgi

Breakdown of a 64k intro: the contents of Tension (www.youtube.com/watch?v=48nL...) look like this after compression. Green is visual data, blue is audio code+data, brown/yellow is engine code and red is the exepacker+stub.

Postprocessing was crucial in the final look of Empires, especially depth of field and color grading. #postprocessing #colorgrading #vfx #64k #realtime

"Extinguish"
for(float i,z,d;i++<5e1;o+=.001/d){vec3 p=z*normalize(FC.rgb*2.-r.xyy);p.z+=8.;for(d=1.;d<9.;d/=.8)p+=cos(p.yzx*d-vec3(t+t,t,0))/d;z+=d=.01+.1*length(p.xz);}o=tanh(o);