#define LAYER(_name,_props,_def) Layer { name "_name" _props states [ _def ] }
#define STATE(_name,_props,_def) State { name "_name" _props controllers [ _def ] }
#define ANIMATE(_name,_value) NumericAnimator { channelName "_name" value _value }
#define CONSTANT(_name,_value) ANIMATE(_name, ConstantValue { value _value })
#define NOISE(_min,_max,_period,_bias,_gain,_phase) \
 FunctionCurve { type "NOISE" min _min max _max \
 period _period bias _bias gain _gain phase _phase }