How To Draw in 1Point Perspective: Constructing a Perspective Drawing
Alright, Now that you understand the basic theory of how to draw in 1Point Perspective we can start to draw!
1. Draw the Horizon Line 
Some notes on the horizon line.. the height of your horizon line makes a big difference in how your drawing turns out. Lower horizon lines give the impression of looking up into the sky, or looking up at a tall building. While higher horizon lines seem to imply looking down at a large "plane" for lack of a better term. It is also a common known rule to never put the horizon line in the center of the picture, it throws off the composition and diverts the eye from exploring the artwork. For this reason, keep your horizon lines around the top and bottom 1/3 of the picture. 2. Draw a Vanishing Point  The vanishing point is the point on the horizon line at which all of the construction lines of your drawing will converge. For 1Point Perspective drawing the Vanishing Point is typically toward the center of the horizon line, but playing around with its position can be a fun experiment in the future when you become more skilled. This can result in extreme perspective and some really cool drawings! 3. Begin with a single line 
The first shape you draw should be very basic, and serves the purpose of providing a frame of reference as to the "space" your subject will occupy. From there it becomes much easier to add details to the drawing that are consistent with the perspective at hand. For my example I will begin to draw a house in 1point perspective. 

4. Draw the basic shape of the box 
Now that you have drawn the first vertical line, all you have to do is extend lines from the top and bottom of this line to the vanishing point. Then, another vertical line that stretches from redline to redline is drawn. The placement of this line determines the length of the shape. From there, draw two horizontal lines and one more vertical line to close the shape and form the front face of the box. Your drawing should resemble something relatively close to the picture below, but as long as it looks somewhat like a box we're doing good.
Now that you have drawn the first vertical line, all you have to do is extend lines from the top and bottom of this line to the vanishing point. Then, another vertical line that stretches from redline to redline is drawn. The placement of this line determines the length of the shape. From there, draw two horizontal lines and one more vertical line to close the shape and form the front face of the box. Your drawing should resemble something relatively close to the picture below, but as long as it looks somewhat like a box we're doing good.
5. Envision the entire volume of the subject 
This next step shows how to completely envision the box. First trace a line from the top and bottom of the right edge to the vanishing point. Then simply draw two horizontal lines from the back left corner of the box. wherever they meet the red lines drawn to the vanishing point is now the other back corner. Finish the shape off with a vertical line to distinguish the corner.
This next step shows how to completely envision the box. First trace a line from the top and bottom of the right edge to the vanishing point. Then simply draw two horizontal lines from the back left corner of the box. wherever they meet the red lines drawn to the vanishing point is now the other back corner. Finish the shape off with a vertical line to distinguish the corner.
Now that the main body of the house is complete, let's figure out how to draw a door on the side of the house.
In order to draw a door, it helps to imagine that we are just drawing another box in the side of the wall. Once the location of the door is decided, the far edge of the door frame is drawn. to complete the door, the top of this line must be extended to the vanishing point (shown as a red tick mark on the corner of the door), which reveals to us the correct angle of the top of the door frame and the correct height of the near edge of the door. all that's left is to depict the depth of the door frame. This is created by drawing a small horizontal line out from the base of the door frame. A subsequent vertical line and perspective line coming from that point finishes out the door nicely.
After a few more minutes tweaking the details and adding textures and shadows, this turned out to be a nice sketch. Hopefully this demonstration showed the power and precision that perspective drawing has. Keep in mind that these techniques can be applied to accurately portray any object.
Be on the lookout for a lesson on TwoPoint Perspective. 2Point Perspective is an even more dynamic way to draw and the next logical step in your perspective drawing journey. Be sure to check it out! It's here! Check out How To Draw in 2Point Perspective to improve your drawing forever!
Be on the lookout for a lesson on TwoPoint Perspective. 2Point Perspective is an even more dynamic way to draw and the next logical step in your perspective drawing journey. Be sure to check it out! It's here! Check out How To Draw in 2Point Perspective to improve your drawing forever!