dr. Sybren

@drsybren

Blender developer on Animation & Rigging + Flamenco, photographer, secretly a cat. Posts are my own, I don't represent Blender. #b3d #animation #rigging

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Bluesky

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dr. Sybren@drsybren· 19d

Online Asset browsing in Blender 5.2.1 is going to be a bit faster than in 5.2.0. Also scrolling through the asset browser will manage the download of thumbnails better; 5.2.0 may not be able to keep up with your scrolling. #b3d #blender3d #assets #OnlineAssetLibraries #development #devfund

dr. Sybren@drsybren· May 27

Donating blood plasma again. This time while showing off some Amsterdamian architecture. #donate #TheBloodIsTheLife #BloodIsLife #sanquin

Me with a needle in my arm, and a plasma separation machine behind me. In the background: water and Amsterdam architecture.

dr. Sybren@drsybren· May 6

Every year, Africa Geographic organizes 'Photographer of the Year'. For 2026, you can still submit photos until May 8. Wild cats are exceptionally photogenic. And so there are many stunning photos of these animals that are submitted, including this one. africageographic.com/photographer... #Cats

Black & white photo of a leopard leaping across (I hope) a river.

dr. Sybren@drsybren· May 3

3 May: International Leopard Day. A day that draws attention to the leopard. Although an all-rounder, this animal is increasingly under pressure. Including due to poaching because body parts are sought after in traditional medicines. #leopard #InternationalLeopardDay #BigCats #cat #CatsOfBluesky

Photo of a leopard chilling in a tree. The hazy background suggests that the tree branch it's laying on is quite high up.

Photo: Africa Wildlife Safaris

dr. Sybren@drsybren· Apr 29

Donating blood plasma. You know, saving lives and stuff. #donate #TheBloodIsTheLife #sanquin

Me in a black t-shirt with a heartbeat line that's a cat in the middle. A needle sticks into my arm, and behind me a machine that separates the plasma from the red blood cells.

dr. Sybren@drsybren· Apr 23

Today, 23 April, is International Pallas’s Cat Day. A day dedicated to raising awareness of the Pallas’s cat, also known as the Manul. This animal, which looks so very different from other felines, has a special place in our hearts. I think it’s absolutely adorable! 😻 #cat #PallasCat #Manul

dr. Sybren@drsybren· Mar 4

Loop control coming to Blender 5.2! Now you finally have control over playback looping. Loop infinitely, or stop it at the end, at the start, or restore where you started playback from. And the most fun one: make it bounce! #animation #b3d #blender3d #development #devfund

Screenshot of Blender's "Playback" popover menu. It now has a Loop menu, with options "Infinite", "Stop at End Frame", "Stop at Start Frame", "Restore Frame", and "Bounce".

dr. Sybren@drsybren· Mar 2

I'm celebrating 10 years of being employed by Blender! And after 10y, you don't get a watch, but something way cooler: a heavy metal (literally) statue of Suzanne 😻 Here's to many more years of being a small part in this awesome project! 🍻🥳 #b3d #Blender3D #Anniversary #devfund #personal

dr. Sybren@drsybren· Feb 25

Donating blood plasma again! #TheBloodIsTheLife #BloodIsLife #sanquin

Me in a blue Blender shirt, with a needle in my arm to donate plasma

dr. Sybren@drsybren· Jan 25

WHYYYY is this popup telling me to go somewhere else to click a button? Why is that blue button not just "Restart & Update"? #ui #ux #usability #EpicGames

dr. Sybren@drsybren· Jan 13

Can the world please STOP with the "NOT NOW" nonsense? Let me make my choice, instead of having some lingering feeling that this choice can pop up again and again without me ever being able to get rid of it. Just let me say "No". #firefox #complaint

dr. Sybren@drsybren· Dec 23

Donating plasma again! Last one of the year. #TheBloodIsTheLife #BloodIsLife #donate

Me with a needle in my arm for the donation, wearing a black NDSM Fightclub tshirt.

dr. Sybren@drsybren· Aug 14

Lunch at Marios, with Blender on my iPad. #b3d #blender3d #ipad #development #siggraph #siggraph2025 #vancouver

Wide-angle photo of a small table at a small coffee shop. Some nice lunch, coffee, and my iPad showing the cube diorama.

dr. Sybren@drsybren· Aug 14

Ik heb meegedaan met de campagne van NDSM Fightclub omdat ik het geweldig vind dat ze uitbreiden en meer mensen in beweging brengen.We zitten al op 50%, wie wordt mijn +1? 👉 crowdaboutnow.nl/ndsm-fightclub #Amsterdam #NDSM #Kickboxing #Kickboksen #sport #health

dr. Sybren@drsybren· Jul 23

Donating plasma again, representing @dubioza.org‬ #BloodIsLife

Me wearing my BOSA t-shirt (Dubioza Kolektiv), hooked up to the plasma machine.

dr. Sybren@drsybren· Jul 2

Donating blood plasma again. They have aircon here, so that's my main reason today 😹 #donateblood #BloodIsLife #sanquin

Me in a donation chair, with a smile on my face.

dr. Sybren@drsybren· Jun 12

Thank you, Clément 💜 #b3d #blender3d #development

Screenshot of Blender's tracker. A commit by Clément Foucault with the message "Make Sybren's brain hurt less".

dr. Sybren@drsybren· Jun 10

Bad KLM, bad! Translation: "Achternaam" is Dutch for "Last Name", and the error reads "Fill in a valid name". My name is perfectly valid. You are asking for my name, as it is in my passport. This is my name. It says so on my passport and on every single identifying document I own.

Web form asking for my last name ("Achternaam"). I entered my last name. It is highlighted in red, with an error message "Fill in a valid name" ("Vul een geldige naam in").

dr. Sybren@drsybren· May 4

Sjaak. Moersleutel brewery, Alkmaar. Original: fedi.stuvel.eu/p/sybren/824... #photography #blackandwhite #beer #brewery #square

Black & white photo of a man between the shiny metal of large beer brewing equipment. He is bending forward to pour some beer into a drain. The foreground has some hoses, one of which leads to the brewing tank the man leans on.

dr. Sybren@drsybren· Apr 30

Donating plasma, in Zaandam this time.

Me in a comfy chair, hooked up to the machine to donate plasma.

dr. Sybren@drsybren· Mar 26

Donating plasma, of course donning some Blender wear. #donating #plasma #BloodIsLife #b3d #blender3d

Selfie of a happy me with a needle in my arm, hooked up to a plasma filtering machine. I’m wearing a green BCON ‘20 Blender tshirt.

dr. Sybren@drsybren· Mar 23

I do wonder what #Flow would have looked like if the main character was a little goat, @gintszilbalodis.bsky.social 😻

a small goat balancing on the head of a capybara that seems content in a park

dr. Sybren@drsybren· Mar 18

Blender 4.4 has been released! Slotted Actions are now a thing. And they're here to stay :) www.blender.org/download/rel... #b3d #blender3d #animation #release #devfund

WHAT ARE
ACTION SLOTS?

Before Action Slots, each data-block specific animation—like an object’s position, a camera’s depth of field, or a material’s shader properties—needed its own separate Action. This made it difficult to animate multiple elements together or share animations between objects or even projects.

For example, if you wanted to animate a camera moving while also changing its depth of field, you’d need two separate Actions, which couldn’t be easily linked or reused.

Now you can mix all sorts of animations such as an object’s position, its material properties, even compositing effects—all within a single Action.

dr. Sybren@drsybren· Mar 11

Made a new front panel for the door opener system at Blender HQ. Designed with Blender & Inkscape, using my add-on Flatterer of course! extensions.blender.org/add-ons/flat... #b3d #blender3d #lasercutting #electronics

dr. Sybren@drsybren· Mar 3

Celebrating Flow winning the Oscar 😻 at Blender HQ! Congratulations @gintszilbalodis.bsky.social and the enitre team 🍻🎉🥳 #flow #oscars #b3d #animation #blender3d

Apple pie, cat food, and a coffee cup with a cat saying "all you need is love and a cat"

dr. Sybren@drsybren· Mar 1

Dubioza Kolektiv was amazing as always 💛🖤💛🖤 @dubioza.org #balkan #music #Paradiso #Amsterdam

Very enthusiastic people: my friends, me, and between us one of Dubioza's singers

dr. Sybren@drsybren· Feb 25

Made a friend at the zoo. He didn't want me to leave, and flew back to me a few times, even when I put him on someone else's shoulder. #Hoenderdaell #dierenpark

Selfie with a colourful Lori (kind of bird) on my shoulder

dr. Sybren@drsybren· Feb 22

If you see this, post your orange art! 🧡😻😻

Our two orange-and-white cats, curled up against each other on a chair.

dr. Sybren@drsybren· Feb 19

Donating plasma #bloodIsLife #donating #donatingPlasma

Me, in a blue chair. Holding out my arm, with a needle, hooked up to the plasma filtering machine.

dr. Sybren@drsybren· Feb 2

I like my skircle circle.