Week 6 :
Tuesday, October 2
- Today we started class with a quiz on formal perspective. I had you draw two cubes - one in one-point perspective and one in two-point perspective.
- I demonstrated "informal perspective" which is also called "sighting".
- Sighting is an alternative to formal perspective. It is less precise than formal perspective but more practical in most drawing situations. Usually to draw accurately using formal perspective vanishing points would extend off your drawing paper or require you to draw very small.
- There are two kinds of sighting: sighting angles and sighting proportions. See the illustrations below for a more in depth explanation.
- The remainder of class was spent working on a two-point perspective drawing of a building or part of a building using the sighting techniques I demonstrated.
- We will continue working on this drawing the next class.
Oct 2 10月2日(Translated by Google Translate)
- 今天，我們開始上課的測驗正式的角度。我有你畫兩個立方體 - 一個在單點透視，兩點透視。
"Informal Perspective" or "Sighting"
In sighting we don't use the elements of formal perspective like horizon line, vanishing points, and converging lines. Instead we use a straight edge like a pencil to see angles and proportions more clearly. This is less precise than formal perspective but usually more useful.
Having a solid understanding of formal perspective is still very important and will help when using the sighting techniques I discuss here. Both are equally important to understand.
1. Sighting Angles
2. Sighting Proportions
When you sight proportions it is very important to always hold your pencil at the same distance from your eyes. For this reason it is best to fully extend your arm and lock your elbow each time your sight proportions.
When we sight proportions we are comparing the lengths of various edges on the building. For this we don't need to hold the pencil perfectly horizontal or vertical rather the pencil acts as a measuring stick.
HOMEWORK ASSIGNMENT: Draw a piece of architecture in two-point perspective using the sighting technique explained above. I will walk you through the steps here. If you get confused email me which step you are confused about so I know what to clarify.
Thursday, October 4
- At the beginning of class we reviewed the sighting technique I demonstrated last class. We looked at the illustrations I have posted here on the website. If you have any questions about sighting or don't understand, email me which step you do not understand so I can clarify.
- The remaining time in class was spent working on our drawings.
- Your drawing pads are due next Tuesday. I gave you a list in class of what drawing should be in your drawing pad and what order they should be in. That list is also posted below.
Oct 4 10月4日(Translated by Google Translate)
Art 20A: Drawing 1
The following projects are due next Tuesday, October 9. Please make sure all the drawing assignments are in order and clearly labeled with either the number or title listed below.
You will turn in your whole drawing pad for grading. I will be returning them to you the following class. Please do not turn in a stack of loose papers.
If you have any questions email me: email@example.com
- Upside-down drawing (copy of Picasso’s drawing of Stravinsky)
- Your hand
- Negative space drawing of a chair.
- Paper-cutting project
- Art department hallway in one-point perspective
- One-point perspective drawing of a room in your house
- Three drawings of cubes in two point perspective (above, on and below horizon line)
- Two point perspective drawing of a building using “informal perspective” or “sighting”
- EXTRA CREDIT: Two point perspective drawing of a building using “formal perspective”