polygonal modelling is modelling object by representing their surfaces using polygonal it suited for scanline rending and is the method mostly used for real-time computer graphics other methods like NURBS and Subdivision surfaces are equation based which is used for ray tracers.
NURBS- Non-Uniform Rational B-Splines
Nurbs is a mathematical modelling technique commonly used in computer graphics programmes like Maya that generate and represent curves and surfaces. it is precise and flexible handling with surfaces and modelled shapes.
- F – will frame the currently selected object
- A – will frame all the objects
- Q – will access the general select tool
- W – will access the move tool
- E – will access the rotation tool
- R – will scale the object.
Quick select is located on the status line, it lets you enter the name of an object to select it. the tool is mostly used to find objects when its hard to find, selecting using *(asterisk) will select all the objects with the characters making it easier to select all similar items with few keystrokes.
Move Tool can move the objects around the x,y and z-axis you can also change where the move manipulator is set for example you are able to change if its set on a vertices or face. the mover manipulator can also be set to move around the grid by vertices or face and above and under the grind.
Rotate Tool can rotate the shape about the world space XYZ axes without changing the rings and rotating a component along a local reference frame rotates the selected vertices or CVS.
Scale Tool when scaling an object you must remember you can only scale objects without components for example joints. the object when scaled is aligned to the world space axis if multiple objects are scaled at the same time each object scales to it own object space.