3D World

X-PARTICLES 4

| | Price £540/$716 (Upgrade from X-P3.5: £220/$292) company Insydium Website insydium.ltd

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What’s new in this release?

With its latest update to X-particles, developer Insydium has made significan­t additions to what was already a feature-rich plugin. It gains new fluid solvers with smoke and fire, a new cloth simulation system, additional particle flow controls and modifiers, an OPENVDB mesher and much more besides.

Possibly the most anticipate­d new element is Explosiafx, the smoke and fire sim originally developed for Softimage by Blackcore Technology and now owned by Insydium. The system operates within a voxel grid, with a real-time preview showing the colour and shape of the fire/smoke simulation. You simply add an object with an Explosiafx Source tag and then press play to start the simulation. You can also mix and match Explosia with other X-particles modifiers to art direct your smoke and fire, creating ghostly tendrils or weird, abstract forms.

Naturally the system draws comparison to Turbulence­fd (£369/$489), the go-to smoke and fire sim for Cinema 4D, and while Explosiafx is easier to get to grips with initially, there’s certainly no denying that TFD’S GPU accelerati­on is leagues ahead in terms of speed. Explosiafx’s Cpubased simulation times aren’t too bad, but there’s a long preparatio­n before C4D’S renderer kicks in. It’s fine at higher voxel sizes, but for really detailed simulation­s, with voxel sizes at 1cm or less, the prep time becomes unusably high. So while the native renders are gorgeous, it makes experiment­ing something of a chore. As a consequenc­e, the best course of action is to cache the simulation as VDB files and render using a thirdparty renderer, such as Octane, Arnold, Redshift or Insydium’s own Cycles 4D. This negates the preparatio­n time but does mean you have to step outside the native C4D workflow.

Next on the checklist is X-particles’ updated fluid solver: xpfluidpbd for smallscale fluids, and xpfluidfx for larger-scale simulation­s. These can be used in tandem with the new OPENVDB mesher to create flowing fluids of mixed densities/viscositie­s. Setup is relatively simple and you have a lot of control over how you want the fluids to behave. However it does take work to get them looking right, even with the OPENVDB mesher. It’s a distinct improvemen­t over the old xpskinner, but requires a bit

of experiment­ation before you hit upon the right values, using a combinatio­n of mesh settings and multiple filters to achieve a smooth, realistic-looking mesh. Again, the closest comparison is with Realflow | Cinema 4D, which, to be honest, is much faster to simulate and has a superior mesher. But for a dedicated plugin costing over £600 – more than X-P 4 in its entirety – you’d be surprised if it wasn’t the better solution.

One of the big surprises in X-particles 4 is the new cloth system, which uses a particle simulation to deform an underlying polygon object. Again, it’s easy to set up and is surprising­ly fully featured for a brand-new addition. With the right settings, the end results are very realistic, and the addition of elements like tears, pinning and stickiness make Cloth FX a genuinely useful addition to the software.

Another handy feature is xpflowfiel­d, providing yet more control over how you want your particles to behave. You simply add it to your scene, making sure it encompasse­s the particle setup, and can then determine the shape of the flow using a target, splines, shaders, object surfaces, a random field or by importing an FGA flow field file. It works great with pretty much everything, including Explosiafx, and can create some really interestin­g results.

These features alone would constitute a fine update, but X-P 4 also includes a new cellular automata system for building mathematic­al/organic structures, the Circle Packer object to avoid particle overlap, a Newtonian Gravity system, as well as a range of new modifiers, including strange attractors and spline flow. To say this is a substantia­l release is something of an understate­ment, and the joy of X-particles is that most of these new systems play well with other areas of the plugin, providing almost limitless scope for exploratio­n and experiment­ation.

On a final note, as X-particles grows in complexity, some of its functional­ity is hampered by the host hardware. The plugin can produce some amazing effects, but can be a real processor hog. Let’s hope future releases bring multithrea­ded optimisati­ons or, given Insydium’s experience with Cycles 4D, some Gpufriendl­y code to really unlock its potential.

X-particles is now a huge one-stop source for particleba­sed effects, and with so many features it’s difficult to keep track of them all. The new fluid systems aren’t yet best-inbreed, but there’s no denying the value in this impressive release, which offers something for everyone.

“The Joy of X-particles is That most of The new SYSTEMS Play well with other areas of The Plugin, Providing almost limitless SCOPE for exploratio­n and experiment­ation”

 ??  ?? with a bit of patience (and the right renderer), explosiafx can create some truly impressive results
with a bit of patience (and the right renderer), explosiafx can create some truly impressive results
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 ??  ?? the new spline flow tool lets you create a specific path for particles to flow along – in this case as a meshed fluid
the new spline flow tool lets you create a specific path for particles to flow along – in this case as a meshed fluid
 ??  ?? X-particles 4 features two new fluid systems, enabling you to make small and large-scale simulation­s. Meshing is done with the new openvdb Mesher
X-particles 4 features two new fluid systems, enabling you to make small and large-scale simulation­s. Meshing is done with the new openvdb Mesher

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