Four point perspective: is it practical? (Concept Drawing)

            After doing some more research on the topic of four-point perspective, I became intrigued with the style that it created when drawing. I then experimented with drawing it [see left] to develop a better understanding of how it is constructed. 

           Why draw in four-point perspective? four point perspective is a more practical way to show how a person sees the real world, for example in a landscape photograph you can see that everything is slightly curved, and the horizon is not perfectly straight, as this picture of the Las Vegas strip shows:

you can see the street on the bottom of the picture curves around similar to the drawing

          To draw a four point perspective drawing, the first step would be to make a grid. Unlike in one, two, and three point perspective drawings, the lines that converge towards the points are actually curved, creating a grid that may seem uneven but is actually not. Then draw a set of general shapes following the grid lines, then extend lines off of the end of the shape facing towards the adjacent hemisphere of the grid on the right, rotating the paper to put the shape in the top left hemisphere. Then close off the extension lines to define the shape with a set of lines following the original shape pointing towards the bottom point. Another way to explain it is to diverge the lines off the edge to the opposing two points outside of the hemisphere that the shape is in. Apply the same logic to shapes crossing over multiple hemispheres but treat it like two different shapes for the top and bottom, making the shapes have a "fat" look to them, bulging in the middle.

         According to Scott Robertson, "One and two point perspective grids are really simplifications of perspective drawing that have a lot of limitations and their own distortion problems... The entire production team also understands that these simplified grids are not exactly true to  life but rather a kind of designer shorthand in creating the illusion of 3D perspective space on a flat surface" (Robertson 63). This quote explains that a perfectly straight grid is just a simple way to put the world, which is how video game designers show the world, as a more realistic curved viewpoint would be too hard to animate. But drawing through this viewpoint is more practical, a way to take drawings to a new level of realistic representation, inspiring me to draw in this new way.

Question: Did you know anything about four point perspective before? How does this change your viewpoint on drawing?