GL_OES_required_internalformat

Supported Hardware

Series5, Series5XT, Series6, Series6XE, Series6XT

Valid APIs

OpenGL ES 1.x, 2.0

Description

By default, OpenGL ES implementations are free to store texture data as they see fit when using unsized types such as "GL_RGBA". This extension adds a number of "sized" internal formats to the specification which mandate a minimum storage precision for these data types. More precision may be used internally, but it can never store data at a lower precision than requested which would otherwise cause a loss of information.

Note

This functionality is core to OpenGL ES 3.0.

Registry Link

http://www.khronos.org/registry/gles/extensions/OES/OES_required_internalformat.txt

Example

// Create a texture with RGBA8 so that it uses no less than 8 bits per pixel 
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8_OES, 1024, 1024, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixelData);