Greg Bollella

GregBollella

About Me

専門知識
Generalist
業界:
Design

Connect

LOCATION
Redwood City, United States

Houdini Engine

ADVANCED
Python
INTERMEDIATE
プロシージャルワークフロー  | キャラクタ & アニメーション  | VEX
BEGINNER
Environments  | Animation  | Hair & Fur  | Cloth  | Solaris

Availability

I am available for Contract Work

Recent Forum Posts

Per-Source Particle Cohesion in FlipSolverSOP Workflow 2025年6月10日11:40

Hi All!

I have five sources for a Flip Solver SOP. Currently, I have the nodes to allow me to color, apply velocity, and mesh the particles from each source *individually*.

What I would like to know:
How might I cause the particles of a particular source to stick together more tightly than to mix with particles from the other sources.

Note: I have the viscosity set to 100 and this goes a long way to keeping the particles of a source together but I'd like to lower the viscosity and get some nice swirly tendrils all flowing around each other but sticking together with only the particles of a source.

I've attached a hip file with what I have so far.

Thanks,
Greg

Waveform Generation in MotionFX for Sequential Blend SOP 2025年5月20日7:57

cncverkstad
Find CHOP drive deform file on Odforce forum or Here on Forum. Use Quantize!
I couldn't find either of those references. Could you post a link?

Also, I found a partially procedural solution. I animated a point along that curve above with a Carve SOP (animating the U percent) then used P.y to generate the values 0-2. This is ok-ish except I have to construct the curve differently for the number of variations of an attribute I want to blend. The above curve works for 3 versions of an attribute.

Any ideas for a fully procedural technique?

Cheers,
Greg

Waveform Generation in MotionFX for Sequential Blend SOP 2025年5月19日16:28

I'm using a Sequential Blend SOP for n parameters. I'd like to create a waveform that steps up smoothly to each parameter 0 - n-1 holding for a bit at each integer value. A rough pic of the kind of waveform I'd want to create below.

Any and all suggestions greatly appreciated!!!

Greg