Wednesday, July 14, 2010

Tej Kohli Animation Glossary V to Z

Tej Kohli animation career blog brings you the final series of Animation Glossary containing words from V to Z.

See: Point.

Viewport : The region of the interface of a 3D software package in which the scene is displayed to the artist.

Volumetrics : Volumetric lights are lights whose illumination can be observed throughout a volume of space, rather than simply where the light strikes a surface. In similar fashion, volumetric textures are textures applied throughout a volume of space, rather than to a surface.

Walk Cycle : A short sequence of animation containing the keyframes necessary to make a bipedal character take two consecutive steps. The sequence may then be repeated over and over again to animate the character walking forward. Walk cycles may be modified in many subtle ways to suggest information about a character’s age, gender, emotional state or personality.

Weighting : The process of determining which bone in a skeleton affects which part of a model’s surface mesh. In many cases, this is achieved by painting weight maps onto the surface of the model that delineate a particular bone’s area of influence.

Wireframe : A shading method in which a simple grid of lines is used to represent the basic contours of the underlying model. For many 3D artists, this is a favoured mode to work in, since it permits them to see faces and surfaces that would otherwise be hidden by overlying geometry.

World axes: See: Co-ordinate systems.

Z-depth : The distance a particular point or surface lies inside a scene. Z-depth information is used to calculate where a light casts shadows, and also to calculate which surfaces are visible to the camera during rendering, and which are obscured by nearer geometry.

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