Sean Lewkiw
mrCatfish
About Me
I have almost 30 years of VFX production experience as a VFX Supervisor, DFX Supervisor, CG Supervisor and Houdini FX artist. My credits include Lord of the Rings, Superman Returns, Golden Compass, Watchmen, Mazerunner, and many many more, and stints at Weta, DNEG, Method, Framestore, Cinesite and ... more
I have almost 30 years of VFX production experience as a VFX Supervisor, DFX Supervisor, CG Supervisor and Houdini FX artist. My credits include Lord of the Rings, Superman Returns, Golden Compass, Watchmen, Mazerunner, and many many more, and stints at Weta, DNEG, Method, Framestore, Cinesite and others. Please see my IMDB profile at https://www.imdb.com/name/nm0507909/
I have extensive teaching experience as both Lead FX Instructor at Lostboys School of VFX in Montreal, and I am currently Head of CG for Onboarding (new hire training) at Cinesite. I focus on the fundamentals, so that you understand what you are doing and why you are doing it -- that you can take what you learned and actually use it to create new content.
I have also been using Houdini since its inception, way way back in the before days. I still love what I do and hope to keep on doing it for many years to come! less
EXPERTISE
CG Supervisor
INDUSTRY
Film/TV
Connect
LOCATION
Montreal,
Canada
WEBSITE
Houdini Skills
Availability
I am currently employed at Cinesite Montreal
My Tutorials
Recent Forum Posts
Copernicus Terrains - How to Paint an Interactive Mask Oct. 13, 2026, 8:56 a.m.
Hmmm... yes, you are right that works not sure what I was doing. Thank you!
Copernicus Terrains - How to Paint an Interactive Mask Oct. 2, 2026, 12:16 p.m.
Thanks, that's what I was trying to do, but I couldn't get it to display in 3d with the 2-flag workflow. After playing around with it a bit, I see I have to put a null downstream of the paint node with the 3d flag enabled and I can see the results in real time on the geo. However, I only seem to be able to paint "height" and all my attempts to paint a brand-new mask were not working.
Basically, I wanted to paint a brand new mask to modulate a HF blur. A collegue of mine came up with this workflow, which works, but is not obvious to say the least!
Is there a better way to do this? (All attempts to paint a mask using the built in tools failed miserably.)
Basically, I wanted to paint a brand new mask to modulate a HF blur. A collegue of mine came up with this workflow, which works, but is not obvious to say the least!
Is there a better way to do this? (All attempts to paint a mask using the built in tools failed miserably.)
Copernicus Terrains - How to Paint an Interactive Mask Oct. 1, 2026, 4:20 p.m.
Houdini 22.0.368 - Is this possbible? I want to flatten an area of my terrain. The heightfield clip COP takes a mask.. how do I paint one on my terrain?