1991-2006 Silicon Graphics, Inc. glDrawElements 3G glDrawElements render primitives from array data void glDrawElements GLenum mode GLsizei count GLenum type const GLvoid * indices mode Specifies what kind of primitives to render. Symbolic constants GL_POINTS, GL_LINE_STRIP, GL_LINE_LOOP, GL_LINES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, and GL_TRIANGLES are accepted. count Specifies the number of elements to be rendered. type Specifies the type of the values in indices. Must be GL_UNSIGNED_BYTE or GL_UNSIGNED_SHORT. indices Specifies a pointer to the location where the indices are stored. glDrawElements specifies multiple geometric primitives with very few subroutine calls. Instead of calling a GL function to pass each vertex attribute, you can use glVertexAttribPointer to prespecify separate arrays of vertex attributes and use them to construct a sequence of primitives with a single call to glDrawElements. When glDrawElements is called, it uses count sequential elements from an enabled array, starting at indices to construct a sequence of geometric primitives. mode specifies what kind of primitives are constructed and how the array elements construct these primitives. If more than one array is enabled, each is used. To enable and disable a generic vertex attribute array, call glEnableVertexAttribArray and glDisableVertexAttribArray. If the current program object, as set by glUseProgram, is invalid, rendering results are undefined. However, no error is generated for this case. GL_INVALID_ENUM is generated if mode is not an accepted value. GL_INVALID_ENUM is generated if type is not GL_UNSIGNED_BYTE or GL_UNSIGNED_SHORT. GL_INVALID_VALUE is generated if count is negative. GL_INVALID_FRAMEBUFFER_OPERATION is generated if the currently bound framebuffer is not framebuffer complete (i.e. the return value from glCheckFramebufferStatus is not GL_FRAMEBUFFER_COMPLETE). glCheckFramebufferStatus, glDisableVertexAttribArray, glDrawArrays, glEnableVertexAttribArray, glUseProgram, glVertexAttribPointer Copyright 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.