%mathent; ]> 1991-2006 Silicon Graphics, Inc. 2010-2014 Khronos Group 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 one of GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, or GL_UNSIGNED_INT. indices Specifies a pointer to the location where the indices are stored. glDrawElements specifies multiple geometric primitives with very few subroutine calls. It is possible to prespecify separate arrays of 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 an array corresponding to a generic attribute required by a vertex shader is not enabled, then the corresponding element is taken from the current generic attribute state. GL_INVALID_ENUM is generated if mode is not an accepted value. GL_INVALID_VALUE is generated if count 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. 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). GL_INVALID_OPERATION is generated if transform feedback is active and not paused. glDrawElements glCheckFramebufferStatus, glDisableVertexAttribArray, glDrawArrays, glDrawArraysInstanced, glDrawElementsInstanced, glDrawRangeElements, glEnableVertexAttribArray Copyright 1991-2006 Silicon Graphics, Inc. Copyright 2010-2014 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.