
Masoud Saadatmand
Masoud
About Me
VFX/FX supervisor.
EXPERTISE
VFX Artist
INDUSTRY
Film/TV
Connect
LOCATION
Erbil,
Not Specified
WEBSITE
Houdini Skills
ADVANCED
Lighting | Pyro FX | Fluids | Destruction FX
INTERMEDIATE
Procedural Modeling | Environments | Motion Editing | Animation | Cloth | Solaris | Mantra | Karma | VEX
BEGINNER
Digital Assets | Hair & Fur | Python
Availability
I am available for Freelance Work
My Gallery
My Tutorials
Recent Forum Posts
Is it possible to simulate fluid dynamics around a spherical Feb. 21, 2025, 10:45 a.m.
Hi everyone,
I'm looking to simulate Flip-Fluid dynamics around a round shape like a sphere, torus, or similar objects—rather than a flat tank or river.
Does anyone know of a good tutorial or have any tips on achieving this effect?
Here are some examples of links:
https://www.youtube.com/watch?v=GwIX9fzkxQY&t=195s [www.youtube.com]
https://www.youtube.com/watch?v=N4pxuDvSXaM&t=1s [www.youtube.com]
Thanks for helping.
I'm looking to simulate Flip-Fluid dynamics around a round shape like a sphere, torus, or similar objects—rather than a flat tank or river.
Does anyone know of a good tutorial or have any tips on achieving this effect?
Here are some examples of links:
https://www.youtube.com/watch?v=GwIX9fzkxQY&t=195s [www.youtube.com]
https://www.youtube.com/watch?v=N4pxuDvSXaM&t=1s [www.youtube.com]
Thanks for helping.
Different mass to each RBD fractured pieces, How? Feb. 9, 2025, 6:14 a.m.
Hi cncverkstad
In your HIP file, you used RBD with whole objects as a single piece. To separate them, I switched it to Bullet, but the simulation is very unstable now and always sink..!
And I don't know what are they white collision proxies in the middle of each geometry!

According to my researches:
- Packed RBDs are more efficient and are the go-to solution when you're dealing with large numbers of objects or large-scale destruction and want to optimize performance.
- Fractured RBDs are more suitable when you need individual control over each fractured piece or if the number of fractured objects is relatively small and you need to manage them individually for specific behaviors.
In your HIP file, you used RBD with whole objects as a single piece. To separate them, I switched it to Bullet, but the simulation is very unstable now and always sink..!
And I don't know what are they white collision proxies in the middle of each geometry!
According to my researches:
- Packed RBDs are more efficient and are the go-to solution when you're dealing with large numbers of objects or large-scale destruction and want to optimize performance.
- Fractured RBDs are more suitable when you need individual control over each fractured piece or if the number of fractured objects is relatively small and you need to manage them individually for specific behaviors.
Different mass to each RBD fractured pieces, How? Feb. 9, 2025, 5:25 a.m.
cncverkstad
can you use in your Project PackedRBD.
Is this image a Packed-RBD?
I tried to use Fractured-RBDs because I need to have direct control over each fractured piece, like applying different forces or tweaking specific interactions, fractured RBDs allow me to manipulate each piece independently.
In the image you uploaded, both of boxes are sinking, why?