Lewis Taylor
lewis_T
About Me
FX Technical Director at Weta FX
EXPERTISE
Technical Director
INDUSTRY
Film/TV
Houdini Skills
ADVANCED
Procedural Modeling | Environments | Digital Assets | Motion Editing | Hair & Fur | Cloth | Solaris | Mantra | Karma | Pyro FX | Fluids | Destruction FX | VEX
INTERMEDIATE
Character Rigging | Animation | Crowds | Muscles | PDG | Python
BEGINNER
Realtime FX
Availability
I am currently employed at Weta FX
Recent Forum Posts
Particle Motionblur Madness Oct. 18, 2026, 5:24 a.m.
As mentioned, you don't need to use the motion blur/cache LOP, you aren't doing deformation blur here.
Make sure you are calculating velocity in SOPs, using point vel SOP, set to center frame, and use "id" attribute.
You can use acceleration blur for this btw, it will be nicer than linear velocity blur.
The reason you get tripped up, is the SOP import is trying to manage you OBJ parameters. So if point v isn't enabled, it's
going not going to make it visible in LOPs.
Cheers,
Lewis
Make sure you are calculating velocity in SOPs, using point vel SOP, set to center frame, and use "id" attribute.
You can use acceleration blur for this btw, it will be nicer than linear velocity blur.
The reason you get tripped up, is the SOP import is trying to manage you OBJ parameters. So if point v isn't enabled, it's
going not going to make it visible in LOPs.
Cheers,
Lewis
SideFX should use forum posts to report bugs themselves Aug. 30, 2026, 1:43 a.m.
You may not like this approach, but it doesn't mean the one you suggesting is better.
I don't really see an issue reporting a bug via the proper channel, with a repro if possible.
The team is pretty quick to let you know that it has been either previously reported, or that your repro was able
to be confirmed on their end.
If you've worked in any form of development you know that a public forum based issue tracker is insane to manage.
What examples do you have of a bug not being addressed, or a post discussing it being locked?
L
I don't really see an issue reporting a bug via the proper channel, with a repro if possible.
The team is pretty quick to let you know that it has been either previously reported, or that your repro was able
to be confirmed on their end.
If you've worked in any form of development you know that a public forum based issue tracker is insane to manage.
What examples do you have of a bug not being addressed, or a post discussing it being locked?
L
Is there a way to put display flag on subnet input? July 10, 2026, 9:25 p.m.
CYTE
Sry Gaalvk, but if you don't understand what the discussion is about, why do you participate?
It's about the INPUT nodes of a subnet. They are not flaggable atm. It would be great if they were.
Cheers
CYTE
But you're only in a subnet temporarily, the result of the subnet matters. It is a little annoying on occasion, but a null is
an easy temp or permanent solution while you are building it out.