glVertexPointer(3G)glVertexPointer(3G)NAMEglVertexPointer - define an array of vertex data
SYNOPSIS
void glVertexPointer(
GLint size,
GLenum type,
GLsizei stride,
const GLvoid *pointer );
PARAMETERS
Specifies the number of coordinates per vertex; must be 2, 3, or 4. The
initial value is 4. Specifies the data type of each coordinate in the
array. Symbolic constants GL_SHORT, GL_INT, GL_FLOAT, and GL_DOUBLE are
accepted. The initial value is GL_FLOAT. Specifies the byte offset
between consecutive vertexes. If stride is 0, the vertexes are under‐
stood to be tightly packed in the array. The initial value is 0. Spec‐
ifies a pointer to the first coordinate of the first vertex in the
array. The initial value is 0.
DESCRIPTIONglVertexPointer() specifies the location and data of an array of vertex
coordinates to use when rendering. size specifies the number of coor‐
dinates per vertex and type the data type of the coordinates. stride
specifies the byte stride from one vertex to the next allowing vertexes
and attributes to be packed into a single array or stored in separate
arrays. (Single-array storage may be more efficient on some implemen‐
tations; see glInterleavedArrays().) When a vertex array is specified,
size, type, stride, and pointer are saved as client-side state.
To enable and disable the vertex array, call glEnableClientState() and
glDisableClientState() with the argument GL_VERTEX_ARRAY. If enabled,
the vertex array is used when glDrawArrays(), glDrawElements(), or
glArrayElement() is called.
Use glDrawArrays() to construct a sequence of primitives (all of the
same type) from prespecified vertex and vertex attribute arrays. Use
glArrayElement() to specify primitives by indexing vertexes and vertex
attributes and glDrawElements() to construct a sequence of primitives
by indexing vertexes and vertex attributes.
NOTESglVertexPointer() is available only if the GL version is 1.1 or
greater.
The vertex array is initially disabled and isn't accessed when glAr‐
rayElement(), glDrawElements() or glDrawArrays() is called.
Execution of glVertexPointer() is not allowed between the execution of
glBegin() and the corresponding execution of glEnd(), but an error may
or may not be generated. If no error is generated, the operation is
undefined.
glVertexPointer() is typically implemented on the client side.
Vertex array parameters are client-side state and are therefore not
saved or restored by glPushAttrib() and glPopAttrib(). Use glPushClien‐
tAttrib() and glPopClientAttrib() instead.
ERRORS
GL_INVALID_VALUE is generated if size is not 2, 3, or 4.
GL_INVALID_ENUM is generated if type is is not an accepted value.
GL_INVALID_VALUE is generated if stride is negative.
ASSOCIATED GETSglIsEnabled() with argument GL_VERTEX_ARRAY
glGet() with argument GL_VERTEX_ARRAY_SIZE
glGet() with argument GL_VERTEX_ARRAY_TYPE
glGet() with argument GL_VERTEX_ARRAY_STRIDE
glGetPointerv() with argument GL_VERTEX_ARRAY_POINTER
SEE ALSOglArrayElement(3), glColorPointer(3), glDrawArrays(3), glDrawEle‐
ments(3), glDrawRangeElements(3), glEdgeFlagPointer(3), glEnable(3),
glGetPointerv(3), glIndexPointer(3), glInterleavedArrays(3), glNormal‐
Pointer(3), glPopClientAttrib(3), glPushClientAttrib(3), glTexCoord‐
Pointer(3)glVertexPointer(3G)