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Effective TDs ships Storm 0.2.5

Friday, July 5th, 2019 | Posted by Jim Thacker

Originally posted on 26 June 2018. Scroll down for news of the 0.2.5 update.

Effective TDs has released Storm, an interesting new standalone granular solver for simulating materials like sand and snow, developed by Scanline VFX artist Sebastian Schäfer.

A fast, reasonably priced standalone granular solver, compatible with most DCC tools
Storm pitches itself as a fast, intuitive, robust granular solver compatible with major DCC applications.

According to the documentation, the software is highly multithreaded, and features an accelerated viewport display capable of displaying “millions of particles in real time” on a standard modern workstation.

It supports stiffness controls and constraint forces, making it possible to simulate materials “from sand to jelly”, with animation controls planned for a future release.

Storm imports base geometry as .obj or Alembic .abc files, and exports completed simulations as Alembic caches, or as particles in Krakatoa’s .prt format or RealFlow’s .bin format.

At under $300, it is competitively priced against more fully featured simulation tools, and may yet gain its own multiphysics capabilities: Effective TDs describes it as the start of “a potential multisolver framework”.

As well as Schäfer’s VFX work, the firm has its own track record in production, being a new joint venture between Stormborn Studios co-founder Goran Pavles and Demolition Master developer Eloi Andaluz.


Updated 24 November 2018: Storm 0.2 is out. (Actually, it’s been available for a couple of weeks, but Effective TDs just just released a new demo version for both Windows and macOS.)

As well as the new Mac version, the update improves performance: the video above claims that the viewport display is up to 4x faster on large scenes, and that simulations themselves are up to 3x faster.

In addition, it is now possible to interact with a simulation in progress in real time.

New functionality includes the option to use any sim as the initial state for another, to use deflectors to activate a simulation only on particles they contact, and to use any volume to kill particles.

It is also now possible to create or import camera animations into Storm.

Originally priced at $279 for a node-locked licence, the product has now been split into a $349 Studio edition and a $149 Indie edition, intended for artists with annual revenue of under $90,000.


Updated 5 July 2019: Storm 0.2.5 is out, making the software available for Linux as well as Windows/macOS.

New features include a Smoothed Particle Hydrodynamics (SPH) fluid solver – you can see it at 01:00 in the video above – which works with all of the forces available for the granular solver, plus a new Wind force type.

It is also now possible to use expressions for all numeric and Boolean parameters within the software, increasing user control of simulations.

Under the hood, writing images and caches in the background is now “25-200% faster”, and performance has been improved when reading or writing Alembic files.

Pricing and availability
Storm is available for Windows 7+, Ubuntu Linux and macOS 10.13+. It has been tested on “multiple workstations and laptops”, with the main limitation on the size of simulations being system RAM.

An Indie licence costs $149; a node-locked Studio licence costs $349, and a floating Studio licence costs $449. There is also a free save-disabled trial edition.

Read a full list of new features in Storm 0.2.5 on Effective TDs’ forum

Read more about Storm on Effective TDs’ website

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