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A shadow is a dark area on a surface where light from a light source is blocked by an object. In contrast, shade occupies the three-dimensional volume behind an object with light in front of it. The cross section of a shadow is a two-dimensional silhouette, or a reverse projection of the object blocking the light.
Silhouette animation is animation in which the characters are only visible as black silhouettes. This is usually accomplished by backlighting articulated cardboard cut-outs, though other methods exist. It is partially inspired by, but for a number of reasons technically distinct from, shadow play.
A traditional silhouette portrait of the late 18th century. A silhouette (English: / ˌ s ɪ l u ˈ ɛ t /, [1] French:) is the image of a person, animal, object or scene represented as a solid shape of a single colour, usually black, with its edges matching the outline of the subject. The interior of a silhouette is featureless, and the ...
The antumbra (from the Latin ante "before" and umbra "shadow") is the region from which the occluding body appears entirely within the disc of the light source. An observer in this region experiences an annular eclipse , in which a bright ring is visible around the eclipsing body.
Shadow play, also known as shadow puppetry, is an ancient form of storytelling and entertainment which uses flat articulated cut-out figures (shadow puppets) which are held between a source of light and a translucent screen or scrim. The cut-out shapes of the puppets sometimes include translucent color or other types of detailing.
One of the key disadvantages of real-time shadow mapping is that the size and depth of the shadow map determine the quality of the final shadows. This is usually visible as aliasing or shadow continuity glitches. A simple way to overcome this limitation is to increase the shadow map size, but due to memory, computational or hardware constraints ...
This is the same object with the lines removed; the only indication of the interior geometry are the points of the object's silhouette. This is the same object rendered with flat shading . The color of the 3 visible front faces has been set based on their angle (determined by the normal vector ) to the light sources.
The illusion derives from the lack of visual cues for depth. For instance, as the dancer's arms move from viewer's left to right, it is possible to view her arms passing between her body and the viewer (that is, in the foreground of the picture, in which case she would be circling counterclockwise on her right foot) and it is also possible to view her arms as passing behind the dancer's body ...