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Perspective drawing provides a sketch with the illusion of realistic depth Computer programs have simplified this process, but you should know how to hand-draw in perspective. Principles of Perspective. Based on the following terminology:
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Perspective drawing provides a sketch with the illusion of realistic depth Computer programs have simplified this process, but you should know how to hand-draw in perspective
Principles of Perspective Based on the following terminology: Foreshortening – Representing the lines of an object as shorter than they are in order to give the illusion of proper relative size Vanishing point – The point on the horizon to which a set of parallel lines recedes Horizon line – A line in a perspective drawing representing the meeting of the earth and sky; normally drawn parallel to the top or bottom edge of the paper
Principles of Perspective Foreshortening at work Vanishing point
Principles of Perspective To draw an accurate perspective sketch you must know… The distance from the observer to the object being drawn The height of the observer’s eye above the object being drawn The size and shape of the object
Principles of Perspective More to know… Relative position of the object in relation to a vertical plane that is placed between the observer and the object
Principles of Perspective The vertical plane in various theatre spaces shifts…
Creating a Perspective Drawing Observation point Floor line: The base of the vertical plane in a perspective drawing; for a proscenium sketch, usually drawn across the stage in contact with the downstage edge of the proscenium arch; in a thrust drawing, normally placed just outside the auditorium end of the thrust; in an arena sketch, usually placed in the aisle closest to the observer
Exercise Steps: A Start with this drawing as your base
Exercise Steps: B Establish vanishing points for AB / DC and AD / BC
Exercise Steps: C Contact the perspective-view base line – establishes perspective view of the object
Exercise Steps: D Find the perspective view of the AB line & point A1
Exercise Steps: E Find the location of point B1
Exercise Steps: F Find the perspective view of the AD line & point D1
Exercise Steps: G Find the location of point C1
Exercise Steps: H Complete the view
Review of the Perspective Procedure All drawings are made on a basic grid composed of four lines
Review of the Perspective Procedure The vanishing point is determined by extending (from OP) a line parallel to the ground plan view of that particular line until it intersects the floor line. From intersection, a vertical line is dropped until it intersects the horizon line
Review of the Perspective Procedure Any point in contact with the floor line is unaffected by the laws of perspective A line parallel to the line of vision can be dropped from that point to the perspective-view base line
Review of the Perspective Procedure A perspective view of a line can be established by extending a line from the pint of contact with the perspective-view base line to a vanishing point for that particular line
Review of the Perspective Procedure To find the location of any point on the perspective view of a line, draw a sight line from the observation point (OP) to the ground plan view of that point From the point of intersection between the sight line and the floor, drop a vertical line until it intersects the extended line
Review of the Perspective Procedure After all the perspective points have been located using these techniques, connect those points to provide a perspective view of the object
Perspective Exercises Exercise 1 Scale: ¼” = 1’-0” OP: 36’-0” right and 8’-0” up1 Floor Line: 20’-0” from OP Horizon Line: 3’-0” from OP Perspective-view base line: extends horizontally through OP Object being drawn: an 8’-0” square resting on the stage floor with its sides at a 45-degree angle to the floor line and the near corner (A) in contact with the floor line at the line of vision
Perspective Exercises Exercise 2 Scale: ¼” = 1’-0” OP: 36’-0” right and 8’-0” up Floor Line: 22’-0” from OP Horizon Line: 7’-0” from OP Perspective-view base line: extends horizontally through OP Object being drawn: a flat 6’-0” by 10’-0” with its sides at a 45-degree angle to the floor line. The near corner (A) is in contact with the floor line and 7’-0” to the left of the intersection between the line of vision and the floor line
Perspective Exercises Exercise 3 Scale: ¼” = 1’-0” OP: 50’-0” right and 8’-0” up Floor Line: 23’-0” from OP Horizon Line: 8’-0” from OP Perspective-view base line: extends horizontally through OP Object being drawn: a platform 8’-0” square by 3’-6” high is placed on the stage with its sides forming 30- and 60- degree angles with the floor line. Corner A is in contact with the floor line and 12’-0” to the left of the intersection of the floor line and the line of vision
Perspective Exercises Exercise 4 Scale: ¼” = 1’-0” OP: 40’-0” right and 10’-0” up Floor Line: 20’-0” from OP Horizon Line: 8’-0” from OP Perspective-view base line: extends horizontally through OP Object being drawn: a small flat, 6’-10” by 10’-0”, lying on the stage floor with its sides at a 45-degree angle to the floor line. The near corner A is 4’-6” to the left of the intersection between the floor line and the line of vision and 2’-6” upstage of it
Perspective Exercises Exercise 5 Scale: ¼” = 1’-0” OP: 36’-0” right and 8’-0” up Floor Line: 20’-0” from OP Horizon Line: 3’-0” from OP Perspective-view base line: extends horizontally through OP Object being drawn: a large rectangular ceiling flat, 10’-10” by 14’-0”, lying on the stage floor with its longer side parallel with, and 2’-0” upstage from, the floor line. Notice the floor line has been placed at the outer face of the proscenium arch to facilitate your creating a perspective drawing of the arch – Dimensions – 32’-0” wide, 16’-0” high, 1’-0” thick
Perspective Exercises Exercise 6 Scale: ¼” = 1’-0” OP: 36’-0” right and 6’-0” up Floor Line: 22’-0” from OP Horizon Line: 6’-0” from OP Perspective-view base line: extends horizontally through OP Proscenium arch: 16’-0” high, 36’-0” wide, and 1’-0” thick Object being drawn: a full stage setting
Perspective Exercises Exercise 7 Scale: ¼” = 1’-0” OP: 36’-0” right and 4’-0” up Floor Line: 20’-0” from OP Horizon Line: 6’-0” from OP Perspective-view base line: extends horizontally through OP Proscenium arch: 16’-0” high, 32’-0” wide, and 1’-0” thick Objects being drawn: a very simple set with 14’-0” walls, a 7’-0” door, a sofa, a chair, a table, and a rug. Sofa = 6’-0” long, 2’-6” deep, and 3’-0” high. Wingback chair = 3’-0” wide, 3’-0” deep, and 4’-0” high. The table is 2’-0” square and 3’-0” high.
When drawing furniture in a box… Draw a box the height, width, and depth of the overall dimensions Sketch the furniture on the faces of the box ‘Uncrate’ the furniture by erasing the box
Perspective Exercises Exercise 8 Scale: ¼” = 1’-0” OP: 36’-0” right and 6’-0” up Floor Line: 15’-0” from OP (Note floor line is placed 2’-0” toward the audience from the edge of the stage… Horizon Line: 8’-0” from OP Perspective-view base line: extends horizontally through OP Proscenium arch: 16’-0” high, 32’-0” wide, and 1’-0” thick Objects being drawn: a scenic design for an arena production
Perspective Exercises Exercise 9 Scale: ¼” = 1’-0” OP: 24’-0” right and 14’-0” up Floor Line: 25’-0” from OP (Note that the paper has been turned 90 degrees and the floor line is located just in front of the front edge of a thrust stage… Horizon Line: 7’-0” from OP Perspective-view base line: extends horizontally through OP Proscenium arch: 16’-0” high, 32’-0” wide, and 1’-0” thick Objects being drawn: a scenic design for a thrust production – the flats are 14’-0” tall and the doors are 6’-9”