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Manual Reference Pages  - GLTEXCOORDPOINTER (3G)

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glTexCoordPointer - define an array of texture coordinates

CONTENTS

C Specification
Parameters
Description
Notes
Errors
Associated Gets
See Also

void glTexCoordPointer( GLint size,

                      GLenum type,
                      GLsizei stride,
                      const GLvoid *ptr )

size	Specifies the number of coordinates per array element. Must be 1, 2, 3 or 4. The initial value is 4.
type	Specifies the data type of each texture coordinate. Symbolic constants  GL_SHORT,  GL_INT,  GL_FLOAT, or  GL_DOUBLE are accepted. The initial value is  GL_FLOAT.
stride	Specifies the byte offset between consecutive array elements. If stride is 0, the array elements are understood to be tightly packed. The initial value is 0.
ptr	Specifies a pointer to the first coordinate of the first element in the array. The initial value is 0.

 glTexCoordPointer specifies the location and data of an array of texture coordinates to use when rendering. size specifies the number of coordinates per element, and must be 1, 2, 3, or 4. type specifies the data type of each texture coordinate and stride specifies the byte stride from one array element 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 texture coordinate array is specified, size, type, stride, and ptr are saved client-side state.

To enable and disable the texture coordinate array, call  glEnableClientState and  glDisableClientState with the argument  GL_TEXTURE_COORD_ARRAY. If enabled, the texture coordinate array is used when  glDrawArrays,  glDrawElements,  glDrawRangeElements 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.

 glTexCoordPointer is available only if the GL version is 1.1 or greater.

The texture coordinate array is initially disabled and it won’t be accessed when  glArrayElement,  glDrawElements,  glDrawRangeElements, or  glDrawArrays is called.

Execution of  glTexCoordPointer 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.

 glTexCoordPointer is typically implemented on the client side with no protocol.

The texture coordinate array parameters are client-side state and are therefore not saved or restored by  glPushAttrib and  glPopAttrib. Use  glPushClientAttrib and  glPopClientAttrib instead.

When the  GL_ARB_imaging extension is supported,  glTexCoordPointer updates the texture coordinate array state of the active client texture unit, specified with  glClientActiveTextureARB.

 GL_INVALID_VALUE is generated if size is not 1, 2, 3, or 4.

 GL_INVALID_ENUM is generated if type is not an accepted value.

 GL_INVALID_VALUE is generated if stride is negative.

 glIsEnabled with argument  GL_TEXTURE_COORD_ARRAY
 glGet with argument  GL_TEXTURE_COORD_ARRAY_SIZE
 glGet with argument  GL_TEXTURE_COORD_ARRAY_TYPE
 glGetPointerv with argument  GL_TEXTURE_COORD_ARRAY_POINTER

 glArrayElement(3G),  glClientActiveTextureARB(3G),  glColorPointer(3G),  glDrawArrays(3G),  glDrawElements(3G),  glDrawRangeElements(3G),  glEdgeFlagPointer(3G),  glEnable(3G),  glGetPointerv(3G),  glIndexPointer(3G),  glNormalPointer(3G),  glPopClientAttrib(3G),  glPushClientAttrib(3G),  glTexCoord(3G),  glVertexPointer(3G)

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