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MSDN Library

glInterleavedArrays

The glInterleavedArrays function simultaneously specifies and enables several interleaved arrays in a larger aggregate array.

void glInterleavedArrays(
  GLenum format,
  GLsizei stride,
  const GLvoid *pointer
);

Parameters

format
The type of array to enable. The parameter can assume one of the following symbolic values: GL_V2F, GL_V3F, GL_C4UB_V2F, GL_C4UB_V3F, GL_C3F_V3F, GL_N3F_V3F, GL_C4F_N3F_V3F, GL_T2F_V3F, GL_T4F_V4F, GL_T2F_C4UB_V3F, GL_T2F_C3F_V3F, GL_T2F_N3F_V3F, GL_T2F_C4F_N3F_V3F, or GL_T4F_C4F_N3F_V4F.
stride
The offset in bytes between each aggregate array element.
pointer
A pointer to the first element of an aggregate array.

Remarks

With the glInterleavedArrays function you can simultaneously specify and enable several interleaved color, normal, texture, and vertex arrays whose elements are part of a larger aggregate array element. For some memory architectures this is more efficient than specifying the arrays separately.

If the stride parameter is zero then the aggregate array elements are stored consecutively; otherwise stride bytes occur between aggregate array elements.

The format parameter serves as a key that describes how to extract individual arrays from the aggregate array:

  • If format contains a T, then texture coordinates are extracted from the interleaved array.
  • If C is present, color values are extracted.
  • If N is present, normal coordinates are extracted.
  • Vertex coordinates are always extracted.
  • The digits 2, 3, and 4 denote how many values are extracted.
  • F indicates that values are extracted as floating point values.
  • If 4UB follows the C, colors may also be extracted as 4 unsigned bytes. If a color is extracted as 4 unsigned bytes the vertex array element that follows is located at the first possible floating point aligned address.

If you call glInterleavedArrays while compiling a display list, it is not compiled into the list but is executed immediately.

You cannot include calls to glInterleavedArrays in glDisableClientState between calls to glBegin and the corresponding call to glEnd.

Note  The glInterleavedArrays function is only available in OpenGL version 1.1 or later.

The glInterleavedArrays function is implemented on the client side with no protocol. Because the vertex array parameters are client-side state, they are not saved or restored by glPushAttrib and glPopAttrib. Use glPushClientAttrib and glPopClientAttrib instead.

Error Codes

The following are the error codes generated and their conditions.

Error code Condition
GL_INVALID_ENUM format was not an accepted value.
GL_INVALID_VALUE stride was a negative value.
GL_INVALID_OPERATION glInterleavedArrays was called between a call to glBegin and the corresponding call to glEnd.

Requirements

  Windows NT/2000: Requires Windows NT 4.0 or later.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in Gl.h.
  Library: Use Opengl32.lib.

See Also

glArrayElement, glColorPointer, glDrawArrays, glDrawElements, glEdgeFlagPointer, glEnableClientState, glGetPointerv, glIndexPointer, glNormalPointer, glPushAttrib, glPushClientAttrib, glTexCoordPointer, glVertexPointer


  

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