OpenGL.GL.EXT.subtexture

OpenGL extension EXT.subtexture

This module customises the behaviour of the OpenGL.raw.GL.EXT.subtexture to provide a more Python-friendly API

Overview (from the spec)

This extension allows a contiguous portion of an already-existing texture image to be redefined, without affecting the remaining portion of the image, or any of the other state that describe the texture. No provision is made to query a subregion of a texture.

Semantics for null image pointers are defined for TexImage1D, TexImage2D, and TexImage3DEXT. Null image pointers can be used by applications to effectively support texture arrays whose dimensions are not a power of 2.

The official definition of this extension is available here: http://www.opengl.org/registry/specs/EXT/subtexture.txt

Functions

glInitSubtextureEXT( )

Return boolean indicating whether this extension is available

glTexSubImage1DEXT( target , level , xoffset , width , format , type , pixels )

glTexSubImage2DEXT( target , level , xoffset , yoffset , width , height , format , type , pixels )