glMultiDrawElements — render multiple sets of primitives by specifying indices of array data elements
|const GLsizei *||count,|
|const GLvoid **||indices,|
Specifies what kind of primitives to render. Symbolic constants
GL_POLYGON are accepted.
Points to an array of the elements counts.
Specifies the type of the values in
indices. Must be one of
Specifies a pointer to the location where the indices are stored.
Specifies the size of the
glMultiDrawElements specifies multiple sets of geometric primitives with very few subroutine calls. Instead of calling a GL function to pass each individual vertex, normal, texture coordinate, edge flag, or color, you can prespecify separate arrays of vertices, normals, and so on, and use them to construct a sequence of primitives with a single call to
glMultiDrawElements is identical in operation to glDrawElements except that
primcount separate lists of elements are specified.
Vertex attributes that are modified by
glMultiDrawElements have an unspecified value after
glMultiDrawElements returns. For example, if
GL_COLOR_ARRAY is enabled, the value of the current color is undefined after
glMultiDrawElements executes. Attributes that aren't modified maintain their previous values.
glMultiDrawElements is available only if the GL version is 1.4 or greater.
glMultiDrawElements is included in display lists. If
glMultiDrawElements is entered into a display list, the necessary array data (determined by the array pointers and enables) is also entered into the display list. Because the array pointers and enables are client-side state, their values affect display lists when the lists are created, not when the lists are executed.
GL_INVALID_ENUM is generated if
mode is not an accepted value.
GL_INVALID_VALUE is generated if
primcount is negative.
GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to an enabled array or the element array and the buffer object's data store is currently mapped.
glArrayElement, glColorPointer, glDrawArrays, glDrawRangeElements, glEdgeFlagPointer, glFogCoordPointer, glGetPointerv, glIndexPointer, glInterleavedArrays, glNormalPointer, glSecondaryColorPointer, glTexCoordPointer, glVertexPointer
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