glBindTexture
- bind a named texture to a texturing target
void glBindTexture(GLenum target, GLuint texture)
target
Specifies the target to which the texture is bound. Must be GL_TEXTURE_2D
.
texture
Specifies the name of a texture.
glBindTexture
lets you create or use a named texture. Calling glBindTexture
with target
set to GL_TEXTURE_2D
, and texture
set to the name of the new texture binds the texture name to the target. When a texture is bound to a target, the previous binding for that target is automatically broken.
Texture names are unsigned integers. The value 0 is reserved to represent the default texture for each texture target. Texture names and the corresponding texture contents are local to the shared texture-object space (see eglCreateContext
) of the current GL rendering context.
You may use glGenTextures
to generate a set of new texture names.
While a texture is bound, GL operations on the target to which it is bound affect the bound texture. If texture mapping of the dimensionality of the target to which a texture is bound is active, the bound texture is used. In effect, the texture targets become aliases for the textures currently bound to them, and the texture name 0 refers to the default textures that were bound to them at initialization.
A texture binding created with glBindTexture
remains active until a different texture is bound to the same target, or until the bound texture is deleted with glDeleteTextures
.
Once created, a named texture may be re-bound to the target of the matching dimensionality as often as needed. It is usually much faster to use glBindTexture
to bind an existing named texture to one of the texture targets than it is to reload the texture image using glTexImage2D
.
GL_INVALID_ENUM
is generated if target
is not one of the allowable values.
Copyright © 2003-2004 Silicon Graphics, Inc.
This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.
eglCreateContext
, glActiveTexture
, glCompressedTexImage2D
, glCopyTexImage2D
, glDeleteTextures
, glGenTextures
, glGet
, glTexImage2D
, glTexParameter