Specifies the number of coordinates per vertex; must be 2, 3, or
4. The initial value is 4.
type
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.
stride
Specifies the byte offset between consecutive
vertices. If stride is 0, the vertices are understood to be tightly packed in
the array. The initial value
is 0.
ptr
Specifies a pointer to the first coordinate of the first vertex in the
array. The initial value is 0.
DESCRIPTION
glVertexPointer specifies the location and data of an array of vertex coordinates
to use when rendering.
size specifies the number of coordinates per vertex and
type the data type of
the coordinates. stride specifies the byte stride from one
vertex to the next allowing vertices and attributes
to be packed into a single array or stored in separate arrays.
(Single-array storage may be more efficient on some implementations;
see glInterleavedArrays.)
When a vertex array is
specified, size, type, stride, and ptr 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 vertices and vertex attributes and glDrawElements to
construct a sequence of primitives by indexing vertices and vertex attributes.
NOTES
glVertexPointer is available only if the GL version is 1.1 or greater.
The vertex array is initially disabled and isn't accessed when
glArrayElement, 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 glPushClientAttrib 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 GETS
glIsEnabled 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
