My Oil Painting Medic blog: http://rachel-shirley.blogspot.co.uk/
Artclass Challenge blog: http://artteachersresource.blogspot.co.uk/
The complex reflections, shadows and refractions that can be seen in a drinking glass has been rendered with only three oil colors in this painting demonstration: titanium white, pthalo blue and burnt umber.
White of course is an essential ingredient for expressing tones, as it is needed for highlights and pales. I chose pthalo blue and burnt umber because when mixed together produces a rich black. This means every tonal value can be expressed with these three oil colors. A color mix bias towards either one of these can produce an array of blues or browns.
Other oil color combinations and white can be used, such as French ultramarine and burnt sienna, or viridian and alizarin crimson, or Prussian blue and sepia. These color combinations when biased either way can produce different tones and subtle hues.
In his painting, I began with the background, blocking in white at the bottom and mostly blue at the top. I then worked the glass from pale tones to dark, using ever thicker paint as I went. Highlights were applied impasto with thick titanium, and the three of spades expressed with neat burnt umber and phalo blue in equal measure. As can be seen here, black oil paint is not always necessary for painting.
This speed art clip has been filmed in stages for clear step by step instructions on how the glass oil painting was completed.
Video Rating: 5 / 5