Perspective is an important part of making a drawing look real. With out perspective there is no real place where we would believe a scene exists.
This is an example of one point perspective. The hallway fades into one point called a vanishing point. The piece is done while sitting on the ground of the hallway, so the horizon line is fairly low. The doorways are about 8 feet tall so you can proportion everything according to that.
These objects are done using multiple points of perspective. Each object is laying in it's own planes, but they are all sitting on the same table. So if the table were to be drawn in it would have a vanishing point in between the bag and the darker box. It is necessary to use perspective to show the depth of the boxes. Although this may not be the best depiction of the perspective seeing as the box on the right seems twisted.
The boxes are both done using two point perspective because you see two of their sides.
The following few pictures are done to create an imaginary, surreal type hallway. Since when I have been taught perspective drawing I have always been made to draw hallways I thought it would be interesting to create one that was futuristic.
This was
These were some preliminary thumbnail sketches that I did in order to decide the shapes that I wanted to use in the final piece.
This was a first try to put all my ideas together while using perspective.
Some more studies that I did on the shapes and connections of the hallway.
This is the final sketch that I decided to use. this is what I believed a futuristic hospital would look like. I ended up making a 3D model of it.
Everything is clean and there are barely any crevices that can collect dirt. I really enjoyed thinking in this way, but the actual making of this drove me crazy.