jb
@jbakergraphics.bsky.social
Previously Engine/Rendering Tech @idSoftware
interested in: C++/OpenGL/Vulkan/GPUs/Voxels/SDFs/Pathtracing/Photography/CpE/Electronics
Co-organizer of Graphics Programming Virtual Meetup
Project writeups, blog posts:
https://jbaker.graphics/index.html
interested in: C++/OpenGL/Vulkan/GPUs/Voxels/SDFs/Pathtracing/Photography/CpE/Electronics
Co-organizer of Graphics Programming Virtual Meetup
Project writeups, blog posts:
https://jbaker.graphics/index.html
Pinned
Writings
jbaker.graphics
any further updates, you can find on my website
jbaker.graphics/writings/ind...
jbaker.graphics/writings/ind...
any further updates, you can find on my website
jbaker.graphics/writings/ind...
jbaker.graphics/writings/ind...
Writings
jbaker.graphics
January 25, 2026 at 5:39 AM
any further updates, you can find on my website
jbaker.graphics/writings/ind...
jbaker.graphics/writings/ind...
Reposted by jb
Hi #portfolioday !
I'm Megan Llewellyn and I'm a freelance medical illustrator available for new work! I specialize in highly detailed surgical scenes, and I have a lot of experience in drawing pathology, anomalous anatomy, and novel procedures.
✉️ m.rose.llewellyn@gmail.com
🫀 meganllewellyn.com
I'm Megan Llewellyn and I'm a freelance medical illustrator available for new work! I specialize in highly detailed surgical scenes, and I have a lot of experience in drawing pathology, anomalous anatomy, and novel procedures.
✉️ m.rose.llewellyn@gmail.com
🫀 meganllewellyn.com
January 13, 2026 at 8:40 PM
Hi #portfolioday !
I'm Megan Llewellyn and I'm a freelance medical illustrator available for new work! I specialize in highly detailed surgical scenes, and I have a lot of experience in drawing pathology, anomalous anatomy, and novel procedures.
✉️ m.rose.llewellyn@gmail.com
🫀 meganllewellyn.com
I'm Megan Llewellyn and I'm a freelance medical illustrator available for new work! I specialize in highly detailed surgical scenes, and I have a lot of experience in drawing pathology, anomalous anatomy, and novel procedures.
✉️ m.rose.llewellyn@gmail.com
🫀 meganllewellyn.com
Reposted by jb
the 2nd part of my dithering visual article is finally out!
🔗 visualrambling.space/dithering-pa...
this one mainly explores the threshold map and how it generates those unique visual patterns
hope you enjoy this as much as I enjoyed making it!
made with #threejs & #animejs
🔗 visualrambling.space/dithering-pa...
this one mainly explores the threshold map and how it generates those unique visual patterns
hope you enjoy this as much as I enjoyed making it!
made with #threejs & #animejs
January 22, 2026 at 2:06 PM
the 2nd part of my dithering visual article is finally out!
🔗 visualrambling.space/dithering-pa...
this one mainly explores the threshold map and how it generates those unique visual patterns
hope you enjoy this as much as I enjoyed making it!
made with #threejs & #animejs
🔗 visualrambling.space/dithering-pa...
this one mainly explores the threshold map and how it generates those unique visual patterns
hope you enjoy this as much as I enjoyed making it!
made with #threejs & #animejs
Reposted by jb
And one of my very first works in the PSX low-poly style. As for me, this is the simplest direction of 3D model design, but also the most interesting)
skfb.ly/oT6Wp
skfb.ly/oT6Wp
January 7, 2026 at 12:10 PM
And one of my very first works in the PSX low-poly style. As for me, this is the simplest direction of 3D model design, but also the most interesting)
skfb.ly/oT6Wp
skfb.ly/oT6Wp
Reposted by jb
Assuming uniform weights and frequencies, and random colors and anisotropy directions, this is what an example gaboronoi diagram would look like.
January 4, 2026 at 1:32 AM
Assuming uniform weights and frequencies, and random colors and anisotropy directions, this is what an example gaboronoi diagram would look like.
vkCmdBlitImage2 is an extremely cool feature - if there is not a 1:1 pixel correspondence between src and dst, it actually uses the texture hardware to do a copy. Really interesting mix of high and low level feature, would typically have to write a little shader to do this.
January 20, 2026 at 8:39 AM
vkCmdBlitImage2 is an extremely cool feature - if there is not a 1:1 pixel correspondence between src and dst, it actually uses the texture hardware to do a copy. Really interesting mix of high and low level feature, would typically have to write a little shader to do this.
Reposted by jb
Speechless, jaw-dropping displays tonight. Fairbanks, Alaska. iPhone photos.
January 20, 2026 at 8:35 AM
Speechless, jaw-dropping displays tonight. Fairbanks, Alaska. iPhone photos.
Reposted by jb
Ever seen one of these, and wondered *why* they work? 🧵
This is a so-called Bitonic sorting network, and the illustrations show the two common ways to implement them. From an implementation point of view the two methods are effectively the same, so which one you pick just comes down to preference.
This is a so-called Bitonic sorting network, and the illustrations show the two common ways to implement them. From an implementation point of view the two methods are effectively the same, so which one you pick just comes down to preference.
December 20, 2025 at 12:26 AM
Ever seen one of these, and wondered *why* they work? 🧵
This is a so-called Bitonic sorting network, and the illustrations show the two common ways to implement them. From an implementation point of view the two methods are effectively the same, so which one you pick just comes down to preference.
This is a so-called Bitonic sorting network, and the illustrations show the two common ways to implement them. From an implementation point of view the two methods are effectively the same, so which one you pick just comes down to preference.
converted 3D physarum from DDA traversal to delta tracking and seeing a roughly 2x speedup in the worst case when there is a lot of scattering
January 12, 2026 at 3:53 AM
converted 3D physarum from DDA traversal to delta tracking and seeing a roughly 2x speedup in the worst case when there is a lot of scattering
Reposted by jb
A sneak peak of what I've been working on: A strand based hair system for Jolt Physics (WIP): youtu.be/Rl19G0c003o
A strand based hair simulation running on GPU
YouTube video by Jorrit Rouwe
youtu.be
January 10, 2026 at 9:08 PM
A sneak peak of what I've been working on: A strand based hair system for Jolt Physics (WIP): youtu.be/Rl19G0c003o
Reposted by jb
Good idea using gaussians for tiled floor vegetation:
yunfan.zone/gswt_webpage/ #3dgs #gamedev #rendering
yunfan.zone/gswt_webpage/ #3dgs #gamedev #rendering
December 3, 2025 at 8:28 PM
Good idea using gaussians for tiled floor vegetation:
yunfan.zone/gswt_webpage/ #3dgs #gamedev #rendering
yunfan.zone/gswt_webpage/ #3dgs #gamedev #rendering
Reposted by jb
this is something I came across in the xRite literature. The qualitative saturation difference actually corresponds to the emission between the two illuminants - xenon has more wideband activity, and so it is "less saturated".
January 8, 2026 at 9:11 PM
this is something I came across in the xRite literature. The qualitative saturation difference actually corresponds to the emission between the two illuminants - xenon has more wideband activity, and so it is "less saturated".
Reposted by jb
Time for more Menu Cube posting 😌
January 10, 2026 at 5:29 AM
Time for more Menu Cube posting 😌
Reposted by jb
magazine screenshot (1993) archive.org/details/BYTE...
January 10, 2026 at 2:54 AM
magazine screenshot (1993) archive.org/details/BYTE...
Reposted by jb
Computer Animation Celebration VHS : 587s
January 7, 2026 at 12:00 PM
Computer Animation Celebration VHS : 587s
Reposted by jb
With my rtgi i am also doing something, that i believe, is a novel technique that i have not seen done before.
While probes are often used in rtgi for indirect diffuse on hit shading, i use them to replace all rtgi hit shading.
On each hit i project the closest probes radiance into the hits.
While probes are often used in rtgi for indirect diffuse on hit shading, i use them to replace all rtgi hit shading.
On each hit i project the closest probes radiance into the hits.
January 9, 2026 at 1:56 AM
With my rtgi i am also doing something, that i believe, is a novel technique that i have not seen done before.
While probes are often used in rtgi for indirect diffuse on hit shading, i use them to replace all rtgi hit shading.
On each hit i project the closest probes radiance into the hits.
While probes are often used in rtgi for indirect diffuse on hit shading, i use them to replace all rtgi hit shading.
On each hit i project the closest probes radiance into the hits.
Reposted by jb
Marvelling the red brick reflections in the leather glove material from the sun hitting the red brick house next to me.
December 26, 2025 at 9:30 AM
Marvelling the red brick reflections in the leather glove material from the sun hitting the red brick house next to me.
really digging this for a light config UI
January 9, 2026 at 9:43 AM
really digging this for a light config UI
Reposted by jb
5 months & 22 day exposure from Fort Point looking across the harbor to South Station Tower #solargraphy #pinholephotography
January 8, 2026 at 9:54 PM
5 months & 22 day exposure from Fort Point looking across the harbor to South Station Tower #solargraphy #pinholephotography
this is something I came across in the xRite literature. The qualitative saturation difference actually corresponds to the emission between the two illuminants - xenon has more wideband activity, and so it is "less saturated".
January 8, 2026 at 9:11 PM
this is something I came across in the xRite literature. The qualitative saturation difference actually corresponds to the emission between the two illuminants - xenon has more wideband activity, and so it is "less saturated".
Reposted by jb
An analog calculation: All the code, all the mistakes, all the debugging, all the documentation ... all on a single sheet of paper! :)
Physics of the gyroscope again: this time Poinsot's ellipsoid rolling but not slipping in the plane defined by angular momentum.
#MathArt #SciArt
Physics of the gyroscope again: this time Poinsot's ellipsoid rolling but not slipping in the plane defined by angular momentum.
#MathArt #SciArt
January 8, 2026 at 8:28 PM
picked up a swatchbook of filters corresponding to the gel data I found. cool to see the correspondence... saturation differences, I think here is because of the CRI of the LED relative to the xenon curve I have
January 8, 2026 at 8:48 PM
picked up a swatchbook of filters corresponding to the gel data I found. cool to see the correspondence... saturation differences, I think here is because of the CRI of the LED relative to the xenon curve I have