Back to my Creative Drawing course book this week and the topic is Atmospheric or aerial Perspective. This is how spatial illusions are created by controlling the sharpness and relative contrast of receding forms in a drawing (Smagula - Creative Drawing). Foreground shapes are sharper than the shapes in the background and far distance. Fairly logical concept. Albrecht Durer's Rocky Landscape (1495) on the right shows a good example of the technique by rendering his foreground rocks in a detailed, sharp manner and background castle less distinct, showing a spatial separation.
My drawing is of the view out my window, showing my neighbours' roofs in the foreground in a more detailed and sharper / darker focus, and the roofs and trees in the receding background less distinct to exaggerate the illusion of depth. If I'd had more time I would have worked more on the foreground roofs to add more detail and shading etc.. but I think the point of the exercise was achieved.
The last part of the chapter on perspective goes on to mention some artists that purposefully use or distort our knowledge of perspective to create imaginative and unpredictable worlds. The most famous being M.C Escher (1898 - 1972), known for creating visual puzzles and using his knowledge of perspective to manipulate and play mind tricks on us. I love mind tricks so he's one of my favourite artists !... Some examples of his best perspective illusions are below, the most famous "Relativity" (1953) with the distorted staircases...
Sacha Grossel is a practising Visual Artist from Australia.