Drawing with perspective enables you create the illusion of 3D images on a 2D surface such as paper, canvas, or even a 2D computer image. There are 2 main types of perspective drawing, One Point perspective and Two point perspective. This Article focuses on how to use one point perspective to create your image.
One big concept in perspective is that the further away things get from your eye, the smaller and closer together they get.
There are 2 tools that will help us create the illusion.
1. The Horizon Line:
The horizon line, is a straight horizontal line that defines where the horizon is to the viewers eyes. This can be lightly sketched in, or you can use a layer in digital media. Once set the horizon line can not be moved unless ou plan on starting completely over.
2. The Vanishing Point:
The vanishing point, is also chosen at the beginning of the drawing and can not be changed. The vanishing point is where the objects in the picture get both smaller and closer together they eventually go in to a single point. The vanishing point can be placed anywhere on the horizon line.
Typically these tools are sketched lightly or used as a layer. They will be covered or erased by the time your drawing is finished. Bellow is an example of a horizon line and vanishing point at the start of a drawing.
After setting up the horizon line and vanishing point, we will add the guidelines to our objects. The same technique will work from anything to trains to human limbs. To keep it simple we will construct a City street here.
By following the rules bellow, we can create a guild line sketch or layer for our image.
1. All vertical lines will go straight up and down.
2. For the Back side of the structure you will use horizontal lines.
3. For the side of the structure, you will draw a line from the corner to the vanishing point.
4. If the top of the structure is above the horizon line, it will be invisible.
5. If the bottom of the structure is bellow the horizion line it will be invisable.
The same concepts can be repeated to create seperate buildings, windows etc.
These Basic concepts can be added apon and layered to create both veriy technical archetectual drawings, and also the concepts can be used loosly to create more "painterly" images.