Frequently Asked Questions (FAQ)

Below is a selection of the most FAQ (Frequently Asked Questions) compiled from search engine's listing and associated Q&A.

Perspectives FAQ

Pick your question from: The list of most asked questions on perspectives.

1. How to draw perspectives from plan?

The floor plan is essential, and it must be to the same scale as the elevation. Both of which will be set-up on your worktop in a particular manner depending the type of perspective been drawn.

2. What are the different types of perspective?

There are 4 basic types of perspectives. Those being 1, 2 & 3-point plus a multi point perspective. There are also different versions of the axonometric projections. However, these are not 'true' perspectives, as they do not have vanishing points. As a variation to these, there are transparent and exploded projections or perspectives that are so designed for specific purposes.

3. How to draw perspectives to scale?

The only point where the perspective is to a true scale is on a line referred to as the picture plane (PP). Where the picture plane is position is a matter of choice. For example, if the PP were placed in front of the object it would increase in size. To make the object look smaller the PP would be placed behind the object. refer-tag An alternate way to create a 3D image to scale would be to draw it as an axonometric projection.

4. How to draw a multiple object perspective?

To draw several objects in the same perspective you will need to use the multi-point method. Each object will have its own set of vanishing points that must be setup in relation to a common picture plane. The same can be said of complex objects.

5. Can I draw a perspective without an elevation?

Yes any perspective can be drawn without an elevation. That is providing you have the dimensions to measure out the required heights.

6. What is the viewer's distance?

The viewing distance is a matter of choice. The nearer you are to the object the bigger, and conversely, the further you are the smaller the object. However, in a 2-point perspective the distance from the object should be approximately 2 times the width of the visible object. This is not a rule of thumb but merely a recommendation..

7. What is the height of the horizon?

A fundamental rule in all perspectives is that the horizon is always at eye level. In 2-point perspectives this is usually within the height of the object. refer-tag Whereas in 3-point perspectives the horizon can be above the object, known as a bird's eye view. With a worm's eye view the horizon is below the object.

Generally the horizon is on the level. But in some cases it can be tilted. For example, a view of an object as seen from a banking aircraft.

8. Is perspective important in art?

Perspective in art is important, but not essential. It could be put down as being artistic license or endemic to a particular style. Consequently, the artist can do what they see fit. Quite often in surrealism the perspective is deliberately manipulated to create extraordinary effects or impressions. However, if you wish to work in the realm of realism a good sense of perspective is foremost.

9. What is the difference between a 2 or 3-point perspective?

In 2-point perspectives this is usually within the height of the object. Whereas in 3-point perspectives the horizon can be above the object, known as a bird's eye view. With a worm's eye view the horizon is below the object. In the case of tall objects such as a view of Manhattan the 3-point method could be used. The parameter to switch to a 3-point is determined by the line of vision. Are you looking up at the object, or are you looking down?

10. How to draw a cylinder in perspective?

This is drawn as a multi-point perspective where the cylinder is divided into equal segments and the different vanishing points are setup for each segment.

Axonometric Projections FAQ

Pick your question from: The list of most asked questions on axonometric projections.

1. Do axonometric have vanishing points?

No, axonometric projections do not have vanishing points. refer-tag But in axonometric illustrations the use of VP's can help you to determine what type of projection would be appropriate.

2. How to draw an exploded axonometric projection?

The exploded projection is drawn in much the same way as a normal axonometric projection. The only difference being that each component or facet is displaced to separate it from the adjoining component.

3. What angle do I draw an axonometric projection?

This is purely a matter of choice depending on the purpose of your drawing. refer-tag If you are draw an image that requires a sense of perspective the object or objects can be sited and drawn as per a grid.

4. How do I determine the vanishing point of an axonometric projection?

Axonometric projections do not have vanishing points. refer-tag But in axonometric illustrations the use of VP's can help you to determine what type of projection would be appropriate.

5. What are the different types of axonometric projection?

There are three main types of axonometric projection: Isometric, Dimetric and Trimetric. All of which are set-up at different angles.

7. How to draw a worm's eye axonometric projection?

A worm's eye axonometric projection is drawn in the same way as a conventional projection and instead of angled lines below the horizontal they should be draw above the horizontal..


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