Sketchbook Week 7: One-point Perspective You will begin applying what you have learned in class regarding the concept and application of linear perspective principals in this assignment. Keep in mind that the key is remembering that the horizon line (HL) is at the same level as your eyes; you can be gazing straight ahead, up or down, but the horizon line remains true to your eye level. From there, and with regular practice, the rest of material on perspective will fall into place. You will be working with box form (cube) of your choosing; it must have 90 degree corners. I would not recommend working with boxes that have open lids, which are inclined planes, unless you have previous experience working with the principals of linear perspective; if you have prior experience, I encourage you to take on the challenge! Drawing #1 2) Measure the proportion of the leading plane of the box from your position; use the pencil/thumb method that you learned in class for measuring. Look at your paper and decide where you need to place that measurement based on your position relative to the subject; use your 2H pencil for this (hint: place it below the middle of your sheet because the receding places will be moving vertically up your paper to reach the HL). 3-5 minutes. 3) From where you have placed your first vertical edge, measure the width of the front plane of the box and , using your 2H pencil, place your second vertical at that point: remember those edges will be true verticals, therefore perpendicular to the HL and parallel to the left and right sides of your drawing paper). Connect the tow verticals with horizontal lines that define the top and bottom of the leading plane of your box. 3-5 minutes. 4) Sight the angle of the receding plane on the left of the top edge of the box and draw that in lightly with your 2H pencil; follow that with sighting the right edge of the box. Sight the angle of the lower edge of the box that is parallel with the tow top edges: does that intersect a the same point (central vanishing point or CVP)? If so, where they connect is your eye level/HL. If not, sight the angles again and make your adjustments. Your HL must be on your paper! 5 minutes. 5) Establish the ground plane (table) for the box and, using your 2H pencil, draw it lightly in proportion to the rest of your drawing. 10-15 minutes. 6) Complete the drawing by laying in general value shapes using the procedure to create your value scale in Week 6; make everything in the box and table that is not white a light gray: leave the negative space white. Using your HB pencil, add another layer of gray to all of the areas of the box and table that are darker in value. Add one more layer of gray using the HB pencil on its side for the darkest areas of the drawing; you can ad another layer with the 3B pencil following that. 10-15 minutes. Drawing # 2 Drawing # 3 2) Follow steps 2-5 from Drawing 1 to complete your drawing.
Three Drawings
Subject: Rectilinear Forms
Materials: 9"x11 3/4" Strathmore 400 paper, 18"x24" newsprint paper, View Catcher, 2H, HB, 3B, 6B graphite pencils, kneaded and gum eraser (finally!), drafting triangle, 24" straight edge.
1) Select a carton, such as a cereal box or another smaller in size. Place the box on a table and keep it below your eye level, so that you can see the top of it. Keep it in one point perspective, that is with one of the vertical planes parallel to your eyes: this will also mean that the back, top and bottom edges will be parallel to the HL. Use a spot light on it to give it some contrast for you to work with in completing the drawing. 5 minutes.
1) Follow steps 1-6 in Drawing #1 but set the box up so that the top is level with your eyes; you won't be ale to see any of the top, with the exception of the leading edge. What do you find as you sight the top leading edge and that on the left or right that is moving toward the HL?
1) Place the box on the table or desk so that it hangs over the edge of it; you want to be able to see part of the bottom of the box. Sit on the floor so that the box is above your eye level and viewed in one-point perspective from your position.