Wednesday, 13 August 2014
When Should You Use the World Control to Animate in Maya?
When Should You Use the World Control to Animate in Maya? The short answer is: "never". But, as with most rules, real life is not quite as simple as that, and there are exceptions to the rule. Since this is an area of some confusion for animators learning to to use Maya, here's a brief outline of what the rules of World Control Etiquette really are.
What is the world control?
The World control is the control on a character or creature rig which allows it to be moved into position. It is also sometimes called the World Mover, the Global Control, or the God Control. It is at the very top of the animation hierarchy, and supersedes all the other controls, hence its name.
What is it used for?
The World Control is used to place your character in your 3D set. That is generally the first and last time that you will use it.
Why should you not use it for animation?
Because it creates confusion. If you set keyframes on your world control to move your character, you will have to counter-animate other controls such as the body and the feet. This will create two sets of curves which counteract one another, and make it very hard to edit your curves.
So why in the Animation Apprentice tutorials do you sometimes animate on the World control?
Good question. The reason is that sometimes you have no choice. For example, if you are animating a walk cycle "on the spot", you may need to set a keyframe on the World Mover in order to create a sense of forward movement. This is because training rigs are generally highly simplified to make learning Maya easier. On production rigs, which tend to be very complex, there would likely be a series of controls below the World Control in the hierarchy which perform the same function as the World Control, but are called something different, such as the "Direction Control". So, on a production rig, you would use one of these other controls to create the same function, while leaving the World Control untouched.
So it is bad to animate on the World Control?
Generally, yes. But when you are animating motion cycles with simple rigs, then you may have no choice.
To sign up for our September classroom at Animation Apprentice, follow this link. For more information on finding work and surviving in the animation and visual effects business, read our post on how to find a job in the animation industry, and check out our post about what not to do at a job interview. Also see our post on starting your own small animation business, learn how to create an invoice, and see how we are helping our students find work through our film co-operative Nano Films. Download the free Escape Studios Careers in VFX Handbook. Take a look at how awn.com can help you find a job, and read our piece about how to survive as a freelance animator. Also, find out what Cinesite look for in a student's demo reel, and read our post on setting up your own animation business. Also see our post about freelancers and taxes.