Particles Deformation Blur for Houdini (SOP HDA)
Particles Consistent Point Count (Houdini HDA)
Stable particle counts for perfect deformation motion blur
Use Code MOTIONBLUR & get 50% OFF (Offer limited to first 10 sales)
Overview
Randomly emitted particles often break deformation motion blur — giving you jittery, inconsistent results and forcing you to rely on less-accurate velocity blur.
Particles Consistent Point Count solves this by reconstructing a stable, frame-to-frame point count for your cached particle simulations.
With a consistent ID stream, you can now:
- Render true deformation blur in Karma, Mantra, or 3rd-party renderers
- Create smooth deformation trails without artefacts
- Gain precise control over motion blur length and style
Key Features
- Consistent Point IDs: Maintain stable topology across the frame range for clean blur.
- Deformation Blur Ready: No more reliance on velocity blur hacks.
- Substep Matching: Match incoming cache frame sampling for maximum accuracy.
Compatibility
- Houdini Version: 20.5.370 & above
- License: Houdini Indie & Apprentice Only
What’s Included
- 1x Black-Boxed HDA – Particles Consistent Point Count
- Example HIP file for quick start
FAQ
Q: Does this work on fluids or only particles?
A: It’s designed for particle caches but can be adapted for other point-based sims.
Q: Is the HDA editable?
A: No, it’s fully black-boxed to protect the workflow.
Q: Do I need high substeps?
A: Substeps should match your incoming cache for best results — defaults are included.
Why You Need This
If you’ve ever struggled with noisy, inconsistent blur in particle renders, this HDA is a drop-in fix. Whether it’s for rain, sparks, embers, sand, or custom FX — you’ll get stable IDs and perfect deformation blur every time.
Stable particle counts for perfect deformation motion blur