shape0

Shape0 is a label used in computational contexts to denote the initial or baseline geometric shape in a sequence of shapes, or the first element in a dataset of geometries. It is not a universal mathematical object, but a convention adopted in graphics, modeling, and software pipelines to identify the starting geometry.

In animation, morphing, and design pipelines, shape0 serves as the reference geometry against which subsequent variants (shape1, shape2, etc.) are transformed or interpolated. In data formats and code, shape0 is often the first entry in an array of shapes; for example shapes[0] may hold the coordinates of a unit primitive such as a square in 2D or a sphere in 3D, providing a canonical starting point for processing.

Examples: In a 2D modeling workflow, shape0 could be a unit square with vertices at (0,0), (1,0), (1,1), (0,1). In a 3D pipeline, shape0 might be a unit sphere approximated by a low-polygon mesh. Subsequent shapes then represent deformations, scaling, or morph targets derived from shape0.

Notes: The exact form of shape0 depends on project conventions and chosen primitives; some pipelines default to simple primitives for efficiency. The term also appears informally in code comments and documentation to denote the "first shape" in a sequence.

See also: shape, geometry, primitive shape, mesh, morph target.