GL_EXT_multi_draw_arrays

Supported Hardware

Series5, Series5XT, Series6, Series6XE, Series6XT

Valid APIs

OpenGL ES 1.x, 2.0, 3.x

Description

This extension adds two new functions to OpenGL ES; glMultiDrawArrays and glMultiDrawElements. These functions perform the same tasks as glDrawArrays/Elements, but also allow the users to render multiple primitive groups in one function call. In other words, one "glMultiDrawArrays" is equivalent to multiple "glDrawArrays" with the same rendering state.

Registry Link

http://www.khronos.org/registry/gles/extensions/EXT/multi_draw_arrays.txt

Example

// Setup lists of buffer offsets and triangle counts 
GLint firsts[] = {0, 32}; 
GLsizei counts[] = {32, 32}; 
// If multiple vertex objects share the same draw state (blending, depth testing, shaders, 
// textures, etc.) then multi-draw can be called on them all at once, rather than calling 
// glDraw multiple times.  
glMultiDrawArrays(GL_TRIANGLES, firsts, counts, 2);