Cast and form shadows: -Cast shadows are just typical shadows that are created when light is blocked by an object. -Form shadows are the shadows that are on the object and away from the light source. Usually, in painting, cast shadows are used to give an object a more realistic and 3D look to them.
Shadows are used to determine time of day and direction, helping us navigate and understand our surroundings. In photography and art, shadows are used to create depth and contrast, adding visual interest to images.
A sundial
The study of shadows is called "sciography." It examines the behavior of shadows in different lighting conditions, and is often used in the fields of architecture, art, and physics to understand the effects of light and shadow.
This is the concept of linear perspective, a technique used in art to create the illusion of depth on a two-dimensional surface. It involves drawing objects smaller as they recede into the background to simulate how we perceive space in the real world. Artists use principles like vanishing points and converging lines to achieve this effect.