Perspective :- Prespective can generally be described as "One's Point of View".

Visually prespective is the way in which object appears to eye.

Graphically prespective is representing the effects of visual perspective in drawings.

Elements in Perspectives:- There are two elemts in perspective drawing,

1) Linear perspective  2) Aerial perspective

1) Linear perspective:- Linear perspective deals with organization of shapes in space.Linear perspective works by

representing the light that passes from a scene through an imaginary rectangle (the painting), to the viewer's eye.

Below image is example of linear perspective.

2) Aerial perspective:- Aerial perspectives deals with the armospheric effects on tones and colors.

Beside black & white image diaplays an example of linear perspective. the lines drawn in colors are called as lines of construction. These lines of construction are used to arrange the blocks & coloumns to create illusion of depth & distance.

& the below colored images showa the example of aerail perspective, which shows the atmospheric effects....

& exact beow that it has a linear perspective with example how to draw lines of construction & get a plane.....

Types of Linear Perspectives :- This perspective can be dived in 3 parts....

1) One-Point Perspective :- Here all the lines coverges at one central location on horizon line.Here we can say the point of view is normal view.

Vanishing point is nothing but the points where set of lines converg, though they are parallel to each other. The object in one point will b viewed as "Head On". The height & width of the object are parallel to picture plane. Using this point of view a realistic buildings can b drawn easily.

2) Two-Point perspective :- Here in 2-point perspective we cxan see the edge of the picture. That is we can say only height is parallel to picture palne & widht will recede into the picture towards Horizon. So here we will get 2-vanishing point.

Note that when object is below eye level top part of object is visible, when above eye level bottom part of object is visible & when exactly on eye level object surfaces visible, as shown below.

3) Three-Point perspective :-  This point of perspective is used when we see the object from top or bottom. If the object is viewd at such an angle so as to make sides appear to be oblique from side to side & top to bottom, then we must use three point perspectives. When vanishing point is towards the sky, then this upper vanishing point is called as "Zenith" and  when we are looking object from bird's view, that is when vanishing point is towards bottom then it would be below horizontal line & is called as "Nadir".