High Class Performance
Like most video, graphics and animation packages, combustion can be very demanding. To make the most of the software, you’ll need to be running a decent spec machine. combustion’s playback performance is very RAM dependent, and you’ll probably need at least 512MB to preview your work in a timely fashion. Of course, combustion has a few tricks to speed up performance, such as variable playback quality and the ability to set in and out points so that you can preview only a small part of a clip. But if you’re working on complex composites with deadlines to meet and need close to realtime playback (which you probably will), it would be wise to invest in at least 1GHz of RAM. But with or without oodles of RAM, combustion is fast.

Industry Standard Features as Standard
combustion boasts the kind of features we’ve come to expect from high- end systems such as flame and inferno as standard. The comprehensive tracking tool can track as many points in a shot as you like, making it extremely versatile and useful for everything from tracking a particle effect or paint element into a shot, to stabilising a camera shake, to working with 3D elements and more. Control over position, rotation and scaling means that this tool can be used to track just about anything to anything, in either 2D or 3D space.

When it comes to bread and butter compositing work such as blue/green screen composites and making, combustion shines. The Linear Keyer can be used to pull a single color with ease, taking care of blue/green screen composites in minutes. For those more intricate shots that require a fine level of control, the Discreet Keyer provides tools to associate transparency with a range of colors, it allows you to work directly onto the matte to tweak your key, and even allows you to use color correction tools to remove color spill.

Particle effects such as explosions can be created quickly and easily using combustion’s extensive library of emitters.

combustion’s vector-based paint and text tools can be used to create anything from cartoon style animations to flying logos to photo-realistic wire removal and matte paintings. The tools are very different to that of other popular paint packages such as Photoshop, but are just as powerful if not more so when used with combustion’s tracking and masking tools. Text can be manipulated in much the same way as any paint object in combustion, however attributes such as face, softness and outline can also be animated giving even greater control.

And combustion’s color correction tools really set it apart from After Effects. Whether you’re making a slight adjustment to the brightness of a shot, changing the color of a particular part of a shot, creating a unique look or treatment or color matching different elements of a composite, combustion has it covered. The Discreet Color Corrector let’s you do all this from one place without having to apply numerous filters to your footage to get the right look.

The Discreet Color Corrector can be used to create everything from subtle lighting corrections to a unique “treated” look.

Added Extras... As Standard
Previously, if you wanted to create impressive particle effects – you’d either be spending hours slaving over your favourite 3D animation package, or you’d be investing in a no doubt pricey plug-in. But combustion features an integrated particle system as standard — it’s powerful, streamlined, versatile, and a lot of fun! This isn’t the same kind of 3D particle system you’d find in a package like max or SOFTIMAGE; combustion creates particle effects on 2D layers, giving you impressive 3D-looking results with minimum effort. The software comes with dozens of particle emitters stored in a library — everything from heavy explosions to water spray, smoke, comet trails and even falling leaves. All of the effects can be previewed quickly, modified to suit your needs, and then tracked into your shot. And of course, if you can’t find what you’re looking for in the extensive library, you can always create your own effects from scratch.

The Bottom Line
This article has merely touched on combustion’s range of features. The software boasts an impressive range of filters and image processing tools, unparalleled control over every aspect of your composite, support for a wide range of image formats including QuickTime, Cineon, AVI, Targa and more... The list quite literally goes on and on! combustion packs a far bigger punch than After Effects, for about the same price. It dwarfs it in features and performance, and for those wanting to break into the visual effects industry doing compositing work, understanding combustion and how it works will score you big brownie points with most of the big studios. Whatever your needs, if you’re serious about producing high quality paint and compositing work on a desktop computer, combustion is the only way to go.

Paul Younghusband has been writing about all things visual effects and animation-related for about six years. He previously served as editor of Visual Magic Magazine, and has contributed to other publications, including Animation World Magazine and VFX PRO.