What is a one point perspective & a Two point Perspective?

Answer 1

If you're reffering to technical drawing, my version is the correct one.. I am a Graphical Comm. teacher.

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One-point Perspective
One may imagine he is traveling on a train along a very straight desert plain - the railway, the station and power-poles, all of which are diminishing towards a single spot far ahead of him. That is what is known as single-point perspective. Single-point (or One-point) perspective is a simplest method of making objects look three-dimensional. It is often used for interior views, when designing rooms or open spaces. Objects must be placed so that the front sides are parallel to the picture plane, with the side edges receding to a single point.

The one-point perspective gives the viewer the sensation of being led by the nose - forced to look at something in a way that is not of the viewer's choosing. Used inappropriately, the one-point perspective can be boring. For example, one probably wouldn't want a one-point perspective looking directly at a wall. Generally speaking, a wall is a rather static thing to be looking at.

In another view, one might feel that a particular one-point perspective is exciting, or is the logical way to look at something. Or he might choose a one-point perspective for a particular work precisely because it makes the viewer feel trapped, or because it feels static.

Two-Point Perspective
Two-point perspective is slightly more complex, as both the front and back edges, and side edges, of an object must be diminished towards vanishing points. Two-point perspective is often used when drawing buildings in the landscape.

Generally, in a two-point perspective, the viewer is looking in a direction approximately parallel to the ground, so vertical lines do not converge with each other. The image is such a drawing. Nothing is being thrown directly at the viewer, and the viewer is not looking directly at a single wall or down a passage; instead the scene opens in a couple directions. The most noticeable objects are seen obliquely, rather than axially. This type of drawing tends to provide a sort of stage for the characters of the drawing, where the viewer's attention is not directed a forcefully toward a single point.

Usually, a two-point perspective has a left vanishing point, and a right vanishing point. On rarer occasions, a two-point perspective is of a different sort, where there is an upper vanishing point and a lower one. One might do this if he wanted to give the viewer the impression of walking down some sort of axis, but of looking somewhat up or down, instead of parallel with the ground. Lines parallel with the axis converge toward a point on the horizon, but vertical lines also converge. Height is emphasized.

Three-Point Perspective
Three-point perspective is more complicated to draw, and is rarer, since it typically involves the viewer looking up or down at a scene instead of horizontally at it. This is because, apart from having two vanishing points at the sides, it also has a vanishing point somewhere above or below the horizon line. The nearer this vanishing point is to the object, the bigger the object looks.

In general most designers create drawings with a vanishing point far below the horizon so that the depth added to the verticals is only slight. In many cases the vanishing point isn't even on the paper. Correct application of the vertical perspective can actually make drawings more realistic. One might use a three-point perspective in a situation where he wants a broad stage and an emphasis of the vertical dimension, for example viewing from or at the top of a skyscraper. He might also use a three-point perspective in a situation where he is trying to make every direction seem equivalent.

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These are some of my lesson notes!

Answer 2

One point Perspective - It's my way or the highway.

Two point - It depends, as sometimes the answer is your way and sometimes the answer is both of our ways.

GOD bless!

Answer 3

Honestly, I wish I knew of some. What do you want in the pictures exactly? I can draw some up for you, scan them into the computer, and email them to you. I am a certified draftsman. Email me what you would like.