Monday, November 12, 2012

Quick Sketch Rendering and Construction Demos

Here are some demos from this term, I'll try to keep posting more of these and add some explanations along the way. These are from my Quick Sketch and Construction 1 classes for LAAFA's full-time program.

Quick Sketch Rendering

This is a basic rendering diagram, demonstrating a full range of values to produce form on a sphere. During the lecture, we discussed which parts of the value scale are most critical in communicating form, and which can be left out when doing a quick sketch drawing.

The diagrams on the right show how the transition between values is more or less abrupt, depending on the form they're describing. Lastly, we discussed how core shadows not only follow the axis along the form they describe, but also show movement across the form. These small movements across the form add movement, energy and greater naturalism, as they mimic the infinitesimal changes that show up on the living model.

Here we see the same principles applied to a drawing from the model, roughly 20 minutes. I'm showing different strategies for producing a fairly rendered figure within a short span of time. Quick sketch drawing depends on developing priorities. In a rendering like this, we're leaving the shadow mass flat and ignoring the highest value steps. Our attention is focused on the core and half tones to produce an impression of solid forms as efficiently as possible.

In this second demo, we're focusing on how to show forms wrapping and twisting around the figure tonally. The triangle like markings on the right of the figure are what I call "tonal connections": little patches of value that emanate from a point and fan out. These connections help to roll forms over, while also showing a twist, suggesting that forms are wedging into each other and continuing to the unseen back of the figure, not ending at the contour.

Gesture, Proportion and Rhythm

Basic proportions, using heads and hands to measure.

Simple armature and basic proportions, using heads and hands to measure.

Practical application of the armature and proportions, drawn from the model

Demo addressing rhythm. It's useful to think of movement flowing through the figure like water in a river.