My MOPs course on Houdini.School is now free! If you want a start to finish course on how (almost) everything works, plus the math background, you can watch it all here: www.houdini.school/courses/mops...
You should contact support about that, as it's most likely a bug. I believe both are making the exact same USD primitive, but there is probably an error in the one parameter.
Tonight (1/28/2026 at 6pm EST), with the series ending over the holidays, we're building a #StrangerThings inspired portal. We'll use #Vellum to animate it breaking apart and healing. This will probably be a multiple week project, but we'll see how far we get.
#houdini #vfx
They should both be exactly the same, and shouldn't matter which you use.
I honestly haven't really gotten into OCIO controls in Karma yet, so I can't really speak to how important it is to get cleaner renders. I might be doing further conceptual courses on Karma in the future, and if so I will definitely be looking into OCIO.
I would certainly expect Karma's rendering performance to improve over the years. It's only been "production ready" for a couple of years, so there's a lot of ground to make up to some of the more mature render engines.
Sorry for the contrived example. I'm definitely on the more technical/conceptual side of things, and not a highly accomplished artist. The idea with the example was to show the mechanisms that can be used to get better results.
Every renderer definitely has it's strengths and weaknesses.
Unfortunately, I can't really speak to what Pixar is doing with Renderman. I've never used that renderer.
Also, if you're talking about XPU samples, you can't set a minimum value. You can only use the Path Traced Samples and the variance threshold parameter as your sampling control.
Path Traced convergence mode is more efficient in shots where there is a very shallow DoF. It's also the default for XPU.
Thanks so much for the kind words!
Tonight (1/7/2026 at 6pm EST) we're going to get back to streaming after the holidays! To ease back in, we're going to do a Q&A session. We do these from time to time, and they're usually a lot of fun. Bring your thoughts and questions!
houdinihangout.com
#Houdini #vfx
Tonight (11/26/2025 at 6pm EST), I'm going to try to finish up the laser project that I started last week. This time we'll add some volumetric effects to try to make the scene a lot more dynamic.
houdinihangout.com for stream info
#houdini #vfx #motiondesign #copernicus
Tonight (11/19/2025 at 6pm EST) I'm going to try to create some lasers using some of the new tools in #Copernicus. Last time I wasn't so successful, but I'm hoping that this time we'll come up with something much better.
info: houdinihangout.com
#houdini #vfx #motiondesign
Tonight (11/12/2025 at 6pm) we're going to try to work with some fluid sims, and make slightly sticky collisions. I've had a couple of questions about this on the Discord, so it would be worth trying out. Hope to see you then!
#houdini #vfx #FLIP #simulation
Tomorrow night (11/05/2025 at 6pm EST), we're going to have Kate Xagoraris as a guest. She's worked on a couple of really interesting HDA toolkits for star catalogs and proteins. It should be a great chat with a lot of science nerdiness!
#houdini #sidefx #vfx #sciviz
Tomorrow (10/29/2025 at 4pm EDT) we're going to have Valentina Malavasi join us. She'll be talking about some of her projects that she's worked on as a student at #BUAS. Her work focuses on bridging #Houdini and #Unreal. Hope to see you there!
#SideFX #gamedev #vfx #procedural
Tonight (10/22/2025 at 6pm EDT) we'll have another guest on the stream, Ferry Taswin! If you're curious about ways to make your own custom workflows in #Houdini this stream should be really interesting for you. Hope to see you there!
#sidefx #python #vfx
We’re thrilled to announce that you can now become a Houdini Certified Instructor! Apply to take the Houdini Exam and join our growing community of certified instructors.
More details are available here: www.sidefx.com/education/edu...
#sidefx #houdini #instructors
Tonight (10/1/2025 at 6pm EDT) we're going to to another live Q&A on the stream. If you have any questions about how to do something in #Houdini this is a great time to ask on the stream. We'll all do our best to get you an answer.
houdinihangout.com for more info
Tomorrow night (9/17/2025 at 5pm EDT), Carlos Dordelly will be joining the stream to talk about some practical workflows and tips in #Solaris. He'll especially focus on things for solo artists and small teams. See you there with your questions!
#sidefx #houdini #vfx #mograph
Tonight (9/10/2025 at 6pm EDT) we're going to try to connect a #Copernicus Flow sim to a #Vellum sim. We'll use the velocity from one to drive the other. Hope to see you there!
For more stream info and Discord link: houdinihangout.com
#sidefx #houdini #motiondesign #vfx
Tonight (9/3/2025 at 6pm EDT) we're going to try to get something working with the new Shot Builder tools. There won't be anything grand or expansive shown off, but we'll do our best to do something interesting with them.
houdinihangout.com
#houdini21 #sidefx #vfx #openusd
Houdini 21 is released! Tonight (8/27/2025 at 6pm EDT) we're going to open it up and play around with some of the new features. There are lots of features that weren't covered in the Keynote, and we'll try some of those. Bring your questions!
#sidefx #houdini #vfx #motiondesign
Just a reminder that we'll have Danny Laursen as a guest tonight (8/13/2025), but this time starting 2 hours earlier at 4pm EDT. Hope that will be a nice change of pace for any Europeans wanting to watch.
Come join us to talk about Danny's awesome flower workflow and HDAs!
I love that those timecodes are in hh:mm, and not mm:ss. Hahaha! It was quite the marathon of features. :)
Soo many incredible goodies coming in #Houdini 21!
- Animation, rigging and muscles: 0:10
- Quad-remesher, texture baking and terrain erosion: 1:02
- Rendering: 1:20
- COPs texture gen: 1:40
- Simulations: 2:07
www.youtube.com/watch?v=C--0...
#techart #simulation #procedural #3dart #texture #anim
Watch the Houdini 21 Keynote from SIGGRAPH 2025! Discover new KineFX motion mixer, muscle system improvements, MetaHumans integration, Copernicus GPU Pyro solver, built-in ML tools, Vulkan support, and more. Today at 10 am PST!
youtu.be/C--08SipCNU
This week (8/13/2025 at 4pm EDT) we'll have Danny Laursen on the stream to talk about his awesome flower tools. We'll look at the logic behind the HDAs, and then go into the tool's functions. Hope to see you there!
www.youtube.com/@Dan...
#sidefx #houdini #3dFlowers #FLOPs
Tonight (8/06/2025 at 6pm EDT) we're going to chat about the H21 Sneak Peak video that was released on Monday. I'm sure you've seen and heard about it by now, but if you want some more analysis of the video come join us!
youtu.be/aq7JQCV51CY...
#houdini #sidefx #vfx #H21
We are thrilled to announce #houdini HIVE Equinox (Sept 23–25, 2025), join us for IGNITE workshops, HIVE presentations, and social events. Building on last year’s Horizon, this year goes bigger with more ways to learn, connect, and be inspired.
www.sidefx.com/equinox/
