glVertex

NAME

glVertex2d, glVertex2f, glVertex2i, glVertex2s, glVertex3d, glVertex3f, glVertex3i, glVertex3s, glVertex4d, glVertex4f, glVertex4i, glVertex4s, glVertex2dv, glVertex2fv, glVertex2iv, glVertex2sv, glVertex3dv, glVertex3fv, glVertex3iv, glVertex3sv, glVertex4dv, glVertex4fv, glVertex4iv, glVertex4sv -- specify a vertex

C SPECIFICATION

void glVertex2d(GLdouble x,

GLdouble y)

void glVertex2f(GLfloat x,

GLfloat y)

void glVertex2i(GLint x,

GLint y)

void glVertex2s(GLshort x,

GLshort y)

void glVertex3d(GLdouble x,

GLdouble y,

GLdouble z)

void glVertex3f(GLfloat x,

GLfloat y,

GLfloat z)

void glVertex3i(GLint x,

GLint y,

GLint z)

void glVertex3s(GLshort x,

GLshort y,

GLshort z)

void glVertex4d(GLdouble x,

GLdouble y,

GLdouble z,

GLdouble w)

void glVertex4f(GLfloat x,

GLfloat y,

GLfloat z,

GLfloat w)

void glVertex4i(GLint x,

GLint y,

GLint z,

GLint w)

void glVertex4s(GLshort x,

GLshort y,

GLshort z,

GLshort w)

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.

C SPECIFICATION

void glVertex2dv(const GLdouble *v)

void glVertex2fv(const GLfloat *v)

void glVertex2iv(const GLint *v)

void glVertex2sv(const GLshort *v)

void glVertex3dv(const GLdouble *v)

void glVertex3fv(const GLfloat *v)

void glVertex3iv(const GLint *v)

void glVertex3sv(const GLshort *v)

void glVertex4dv(const GLdouble *v)

void glVertex4fv(const GLfloat *v)

void glVertex4iv(const GLint *v)

void glVertex4sv(const GLshort *v)

PARAMETERS

v

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

DESCRIPTION

glVertex commands are used within glBegin / glEnd pairs to specify point, line, and polygon vertices. The current color, normal, and texture coordinates are associated with the vertex when glVertex is called.

When only x and y are specified, z defaults to 0.0 and w defaults to 1.0. When x, y, and z are specified, w defaults to 1.0.

NOTES

Invoking glVertex outside of a glBegin / glEnd pair results in undefined behavior.

注：glVertex<234><sifd>v(const type *v)中的元素应该是二维数组保存的点坐标，例如：a[ ][2],a[ ][3],a[ ][4],分别表示2、3、4维点。