Gl.Vertexf (gb.opengl)

Specify a vertex.

Parameters

x, y, z, w

Specify x, y, z, and w coordinates of a vertex. Not all parameters are present in all forms of the command.

Parameters

v

Specifies a pointer to an array of two, three, or four elements. The elements of a two-element array are $\mathit{x}$ and $\mathit{y}$; of a three-element array, $\mathit{x}$, $\mathit{y}$, and $\mathit{z}$; and of a four-element array, $\mathit{x}$, $\mathit{y}$, $\mathit{z}$, and $\mathit{w}$.

Description

Gl.Vertex commands are used within Gl.Begin/Gl.End pairs to specify point, line, and polygon vertices. The current color, normal, texture coordinates, and fog coordinate are associated with the vertex when Gl.Vertex is called.

When only $\mathit{x}$ and $\mathit{y}$ are specified, $\mathit{z}$ defaults to 0 and $\mathit{w}$ defaults to 1. When $\mathit{x}$, $\mathit{y}$, and $\mathit{z}$ are specified, $\mathit{w}$ defaults to 1.

Notes

Invoking Gl.Vertex outside of a Gl.Begin/Gl.End pair results in undefined behavior.

See also

See original documentation on OpenGL website