The only realistic drawing convention= vital for designers:

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Presentation transcript:

The only realistic drawing convention= vital for designers:

Sketching: drawing techniques for product designers, Koos Eissen and Roselien Steur http://www.autodesk.com/products/sketchbook-pro/features/all/gallery-view http://mathforum.org/workshops/sum98/participants/sanders/TryPersp.gsp.html

eye level One point perspective = one vanishing point..

One point.. A great introduction: https://prezi.com/jjm4hp7phmbi/copy-of-1-point-perspective/

x Some tips / rules: No Rulers! That way you will be helping to increase your quality of line (see drawing notes set 4) and appear more confident Don’t rub out construction lines Start very lightly with a sharp, hard pencil and then go over the actual design edges in a darker line. x

One point room..

One point room.. https://www.youtube.com/watch?v=nnPqSPj-4H4&index=1&list=PL6Pbk88aMx75ItYPqWyd8v0cu1BxLuOjv

One point room..

One point circle design..

One point..

One point..

One point..

Two point.. Ref: http://www.paintdrawpaint.com/2010/09/drawing-basics-two-point-perspective.html https://www.youtube.com/watch?v=aFjSG5G-FxA&list=PL6Pbk88aMx75ItYPqWyd8v0cu1BxLuOjv&index=3

Two point.. draw the horizon line almost at the top of your page (A3 paper is useful here). Add two points at either end of the line. Hint: keep them wide…. first draw the front edge.

Two point.. Draw the corners back to the vanishing points

Two point.. Now you have to estimate where the back Edges of the cube will be, think about the cube proportions

Two point.. Finish the top edge, hint: they still go off to the same points

Two point.. Try repositioning the cube

Distortion The angle nearest the viewer should not be less than 90 degrees That represents an impossible scenario.

Foreshortening: Length a. is shorter than b. because its surface is more angled away from us

Two point.. Its important to practice drawing the basic cube in proportion, because then you can use it to draw other objects. Remember foreshortening

Viewpoint some experimenting may be necessary. Here, the side view of the truck is most informative.

Start Simple: Using cubes

Start Simple:

Start Simple: All objects can be made up from 4 basic shapes: Cubes Spheres Cylinders Cones

Ellipses and Circular forms: Circles in perspective =

Note that the minor axis is always vertical for upright cylinders Note the widening of the ellipse i.e. increase in minor axis, as the eye descends . This relates to foreshortening.

Now draw some vertical cylinders:

Ellipses and Circular forms: use the minor axis of the ellipse

Ellipses and Circular forms: adding details

Ellipses and Circular forms: draw these in perspective…

Horizontal forms: the minor axis of the ellipse aligns with the line to the vanishing point Note that the ellipse gets wider (minor axis longer as it moves towards the vanishing point.