9.5.2

428 • CHAPTER 7
OBJECTS MENU • DEFORMERS • 429
Further usage advice
Remember that Polygon Reduction acts as a deformer i.e. you place it within your object structure in
the Object manager – it will reduce the polygons of its parent object and all its children. You can use
Polygon Reduction on any geometric object (HyperNURBS, Object Primitive, Array etc.).
If you apply the deformer to a HyperNURBS object, the deformer can be placed either at the same
hierarchy level as the NURBS object, or at the same hierarchy level as the HyperNURBS child object.
Since the HyperNURBS operates on the rst sub-object in its hierarchy, the deformer should not be
the rst child object of the HyperNURBS object. The following diagrams illustrate this.
A HyperNURBS object
before applying Polygon
Reduction.
The incorrect placing of
the Polygon Reduction
deformer within the
HyperNURBS sub-object
leads to a strange result.
The correct placing of
the Polygon Reduction
deformer.
As with other deformers you can turn Polygon Reduction on and off using the tick icon alongside the
Polygon Reduction object in the Object manager. You can do this at any time that Polygon Reduction
is part of the object’s hierarchy.
The Polygon Reduction deformer turned on. The Polygon Reduction deformer turned off.
Converting the nal object
While you are working with Polygon Reduction to obtain a reduced polygon count that suits your
purposes, the deformer maintains the original mesh and re-calculates as you experiment. When you
are fully satised with your new object you should select it in the Object manager and use Functions
> Current State To Object to produce a new object without the original mesh – then you can delete
the original object.