MOPs
@motionoperators.com
Motion Operators, a motion graphics toolkit for Houdini created by Henry Foster (Toadstorm).
https://www.motionoperators.com
https://linktr.ee/motionoperators
https://www.motionoperators.com
https://linktr.ee/motionoperators
A new MOPs+ release is out! This introduces the MOPs+ Camera, a fully-featured camera rig with all kinds of fun and quick controls for animating cameras easily in the viewport. Check the demo videos and the full release notes here: motionoperators.com/blog/index.p...
Introducing MOPsCam – MOPs Blog
motionoperators.com
October 24, 2025 at 2:00 AM
A new MOPs+ release is out! This introduces the MOPs+ Camera, a fully-featured camera rig with all kinds of fun and quick controls for animating cameras easily in the viewport. Check the demo videos and the full release notes here: motionoperators.com/blog/index.p...
Happy Labor Day! I just added Houdini 21 / Qt6 hotfixes for both MOPs and MOPs Plus, and a few cool little upgrades to MOPs... now you can easily cycle falloffs! Check the blog for details: motionoperators.com/blog/index.p...
September 1, 2025 at 11:30 PM
Happy Labor Day! I just added Houdini 21 / Qt6 hotfixes for both MOPs and MOPs Plus, and a few cool little upgrades to MOPs... now you can easily cycle falloffs! Check the blog for details: motionoperators.com/blog/index.p...
Happy Houdini 21 release day! H21 is compatible with both MOPs and MOPs Plus (for Python 3.11) so you shouldn't have to worry about any upgrades. Have fun!
August 26, 2025 at 5:28 PM
Happy Houdini 21 release day! H21 is compatible with both MOPs and MOPs Plus (for Python 3.11) so you shouldn't have to worry about any upgrades. Have fun!
I wrote a little article here for VFX artists about what environment variables are, how to manipulate them, what various .env files are actually doing, and how to roll your own pipelines to organize your projects at home. Look here: www.toadstorm.com/blog/?p=1010
A VFX Artist’s guide to the System Environment – Toadstorm Nerdblog
www.toadstorm.com
August 5, 2025 at 2:26 AM
I wrote a little article here for VFX artists about what environment variables are, how to manipulate them, what various .env files are actually doing, and how to roll your own pipelines to organize your projects at home. Look here: www.toadstorm.com/blog/?p=1010
The MOPs website (and toadstorm.com) will be offline for less than 1 hour for some maintenance and improvements. Thanks for your patience!
May 21, 2025 at 5:47 PM
The MOPs website (and toadstorm.com) will be offline for less than 1 hour for some maintenance and improvements. Thanks for your patience!
A new Experimental release of MOPs is now available! This is mostly just minor bugfixes and QoL improvements. Details on the release page: github.com/toadstorm/MO...
Release MOPs v1.10.1 Experimental · toadstorm/MOPS
MOPs Instancer will now pack all inputs except for packed Alembics or disk sequences. This is for consistency so that multi-primitive inputs are correctly grouped together.
Fixed a broken channel l...
github.com
May 13, 2025 at 4:45 PM
A new Experimental release of MOPs is now available! This is mostly just minor bugfixes and QoL improvements. Details on the release page: github.com/toadstorm/MO...
I'm looking for software developers who can help me write a floating license server for MOPs+. Some experience in Houdini is a plus but not required. If you're interested or know someone who is, please reach out to me at henry@motionoperators.com.
April 21, 2025 at 6:11 PM
I'm looking for software developers who can help me write a floating license server for MOPs+. Some experience in Houdini is a plus but not required. If you're interested or know someone who is, please reach out to me at henry@motionoperators.com.
Reposted by MOPs
Apex is still pretty scary and new for most existing Houdini artists, but there’s no need to be scared anymore! Matt (@cgwiki.bsky.social) will provide a jargon-free explainer of Apex at #EPC2025!
Get your tickets now: everythingprocedural.com
#everythingproc #ProcGen #Apex #GameDev
Get your tickets now: everythingprocedural.com
#everythingproc #ProcGen #Apex #GameDev
April 7, 2025 at 9:16 AM
Apex is still pretty scary and new for most existing Houdini artists, but there’s no need to be scared anymore! Matt (@cgwiki.bsky.social) will provide a jargon-free explainer of Apex at #EPC2025!
Get your tickets now: everythingprocedural.com
#everythingproc #ProcGen #Apex #GameDev
Get your tickets now: everythingprocedural.com
#everythingproc #ProcGen #Apex #GameDev
I wrote a little primer on rigid body dynamics in Houdini after seeing a lot of similar questions online. Bullet is a pretty deep rabbit hole to fall into and there's a lot of legacy stuff that's very confusing for new artists... hopefully this helps you get started!
www.toadstorm.com/blog/?p=1123
www.toadstorm.com/blog/?p=1123
A Houdini RBD Primer, Part 1 – Toadstorm Nerdblog
www.toadstorm.com
March 25, 2025 at 12:57 AM
I wrote a little primer on rigid body dynamics in Houdini after seeing a lot of similar questions online. Bullet is a pretty deep rabbit hole to fall into and there's a lot of legacy stuff that's very confusing for new artists... hopefully this helps you get started!
www.toadstorm.com/blog/?p=1123
www.toadstorm.com/blog/?p=1123
A new release of MOPs+ is now available! This adds the new MOPs+ Rig Aim node, as well as a new streamlined version of MOPs+ Collision Geo. More details on the MOPs Blog: motionoperators.com/blog/index.p...
March 11, 2025 at 7:34 PM
A new release of MOPs+ is now available! This adds the new MOPs+ Rig Aim node, as well as a new streamlined version of MOPs+ Collision Geo. More details on the MOPs Blog: motionoperators.com/blog/index.p...
I'm trying to get another fun new toy done for the next release: MOPs+ Rig Aim. Enjoy watching it wave Paul around!
motionoperators.com/blog/index.p...
motionoperators.com/blog/index.p...
February 19, 2025 at 4:37 AM
I'm trying to get another fun new toy done for the next release: MOPs+ Rig Aim. Enjoy watching it wave Paul around!
motionoperators.com/blog/index.p...
motionoperators.com/blog/index.p...
Some info about the upcoming improvements to MOPs+ Collision Geo:
motionoperators.com/blog/index.p...
motionoperators.com/blog/index.p...
MOPs+ Collision Geo 1.1 – MOPs Blog
motionoperators.com
January 14, 2025 at 11:13 PM
Some info about the upcoming improvements to MOPs+ Collision Geo:
motionoperators.com/blog/index.p...
motionoperators.com/blog/index.p...
I've updated the MOPs blog page to use a new Wordpress format so it's easier to post about updates and development in general, and so people can use RSS to get updates instead of social media. The updated page is here: motionoperators.com/blog/
MOPs Blog – The less scary part of Houdini since 2018.
motionoperators.com
January 12, 2025 at 3:25 AM
I've updated the MOPs blog page to use a new Wordpress format so it's easier to post about updates and development in general, and so people can use RSS to get updates instead of social media. The updated page is here: motionoperators.com/blog/
🚨 Black Friday sale! Today through 12/1, get a MOPs Plus license for 20% off using the coupon code MOPSFRIDAY2024.
November 27, 2024 at 6:25 PM
🚨 Black Friday sale! Today through 12/1, get a MOPs Plus license for 20% off using the coupon code MOPSFRIDAY2024.
i know this is a business account or whatever but i just baked some really good bagels and you can't stop me from posting them
November 23, 2024 at 6:08 PM
i know this is a business account or whatever but i just baked some really good bagels and you can't stop me from posting them
Reposted by MOPs
Little Apex explainer targeted at experienced Houdini folk. It's rough (got a cold, ugh), but figured it'll be useful to people like me who were simultaneously interested and apprehensive. Will likely re-record later when my voice recovers and I learn more things... www.youtube.com/watch?v=U9-e...
apex overview
YouTube video by matt estela
www.youtube.com
November 21, 2024 at 11:13 AM
Little Apex explainer targeted at experienced Houdini folk. It's rough (got a cold, ugh), but figured it'll be useful to people like me who were simultaneously interested and apprehensive. Will likely re-record later when my voice recovers and I learn more things... www.youtube.com/watch?v=U9-e...
A new build of MOPs Plus is now available! This introduces Infection Falloff 1.1, with a better interface and support for "healing" and reinfection, some improvements to MOPs Typography and Apply Attributes, and more! Details on the changelog: www.motionoperators.com/changelog/
October 24, 2024 at 7:37 PM
A new build of MOPs Plus is now available! This introduces Infection Falloff 1.1, with a better interface and support for "healing" and reinfection, some improvements to MOPs Typography and Apply Attributes, and more! Details on the changelog: www.motionoperators.com/changelog/
A new Stable release of MOPs is now available! Lots of bugfixes, nitpicks, UI improvements, and a unit testing module for developers. Details on the Release page: github.com/toadstorm/MO...
Release MOPs v1.10.0 · toadstorm/MOPS
A new Stable release!
This includes all Experimental changes between 2023-12-14 and now. Highlights include:
Added official unit tests for developers! (please contribute T___T)
Fixed a broken chan...
github.com
October 22, 2024 at 11:01 PM
A new Stable release of MOPs is now available! Lots of bugfixes, nitpicks, UI improvements, and a unit testing module for developers. Details on the Release page: github.com/toadstorm/MO...
The Houdini HIVE Horizon talks from Toronto are now available online, including my talk about MOPs and UX in Houdini! Check them out here: www.sidefx.com/houdini-hive...
HIVE Horizon 2024 | SideFX
HIVE Horizon 2024
www.sidefx.com
September 23, 2024 at 9:20 PM
The Houdini HIVE Horizon talks from Toronto are now available online, including my talk about MOPs and UX in Houdini! Check them out here: www.sidefx.com/houdini-hive...
Trying to solve an age-old Houdini problem here. Whenever it's done, I'll release the full toolkit for creating self-installing Houdini packages as open source software. Doing my best to keep making Houdini easier!
September 17, 2024 at 4:23 PM
Trying to solve an age-old Houdini problem here. Whenever it's done, I'll release the full toolkit for creating self-installing Houdini packages as open source software. Doing my best to keep making Houdini easier!
I'm going to be presenting at Houdini HIVE in Toronto next month! Hope to see some of you nerds there...
www.sidefx.com/houdini-hive...
www.sidefx.com/houdini-hive...
August 22, 2024 at 10:00 PM
I'm going to be presenting at Houdini HIVE in Toronto next month! Hope to see some of you nerds there...
www.sidefx.com/houdini-hive...
www.sidefx.com/houdini-hive...
Hi MOPs+ Users,
I know times are tough for motion designers right now, and every subscription you need for your job can start to add up. To that end I'm applying a 15% discount to all active MOPs+ personal license renewals, effective immediately...
I know times are tough for motion designers right now, and every subscription you need for your job can start to add up. To that end I'm applying a 15% discount to all active MOPs+ personal license renewals, effective immediately...
July 30, 2024 at 6:48 PM
Hi MOPs+ Users,
I know times are tough for motion designers right now, and every subscription you need for your job can start to add up. To that end I'm applying a 15% discount to all active MOPs+ personal license renewals, effective immediately...
I know times are tough for motion designers right now, and every subscription you need for your job can start to add up. To that end I'm applying a 15% discount to all active MOPs+ personal license renewals, effective immediately...
A new Experimental release of MOPs (1.9.2e) is now available. This fixes a number of minor UX errors and an issue with the MOPs Noise Modifier. Details on the release page: github.com/toadstorm/MO...
Release MOPs v1.9.2 Experimental · toadstorm/MOPS
Updated the group mask channel link in MOPs Plain Falloff.
Fixed another group mask dropdown in MOPs Pivot.
The MOPs Instancer should no longer accidentally generate duplicate id attributes from me...
github.com
July 15, 2024 at 5:37 PM
A new Experimental release of MOPs (1.9.2e) is now available. This fixes a number of minor UX errors and an issue with the MOPs Noise Modifier. Details on the release page: github.com/toadstorm/MO...
A new release of MOPs Plus is now available! This adds compatibility with Houdini 20.5 (Python 3.11) and a number of bugfixes and improvements. Details on the release page: www.motionoperators.com/changelog/
MOPs+ Changelog – MOPs
www.motionoperators.com
July 10, 2024 at 8:48 PM
A new release of MOPs Plus is now available! This adds compatibility with Houdini 20.5 (Python 3.11) and a number of bugfixes and improvements. Details on the release page: www.motionoperators.com/changelog/
Here's a little post I made about how to drive rigid bodies in Houdini with handmade animation, using constraints (and MOPs): www.toadstorm.com/blog/?p=1090
Animating RBDs by Hand – Toadstorm Nerdblog
www.toadstorm.com
May 24, 2024 at 5:35 AM
Here's a little post I made about how to drive rigid bodies in Houdini with handmade animation, using constraints (and MOPs): www.toadstorm.com/blog/?p=1090