John Mather
johnmather
About Me
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Developer
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LOCATION
Canada
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Houdini Skills
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SideFX Staff
Since Aug 2019
Recent Forum Posts
Otis sim are slow on a machine with good GPU March 1, 2026, 3:08 p.m.
Is the GPU actually being used? You can use a tool such as nvtop to verify.
Houdini will fall back to calculating everything on the CPU if it can't access the GPU. Do you have the official Nvidia drivers installed? The open source Nouveau drivers won't work.
Houdini will fall back to calculating everything on the CPU if it can't access the GPU. Do you have the official Nvidia drivers installed? The open source Nouveau drivers won't work.
Animated texture not playing in the Viewport H21 Feb. 27, 2026, 3:02 p.m.
You can file a bug or RFE here: https://www.sidefx.com/bugs/submit/ [www.sidefx.com]
How to launch & control houdini programmably Feb. 24, 2026, 1:53 p.m.
You can pass a python script to Houdini when launching it. Simply put the code you want to execute once it's started and then run it like so:
houdini my.hip script.py