1991-2006
Silicon Graphics, Inc.
2010-2013
Khronos Group
glBindTexture
3G
glBindTexture
bind a named texture to a texturing target
C Specification
void glBindTexture
GLenum target
GLuint texture
Parameters
target
Specifies the target to which the texture is bound.
Must be one of
GL_TEXTURE_1D,
GL_TEXTURE_2D,
GL_TEXTURE_3D,
GL_TEXTURE_1D_ARRAY,
GL_TEXTURE_2D_ARRAY,
GL_TEXTURE_RECTANGLE,
GL_TEXTURE_CUBE_MAP,
GL_TEXTURE_CUBE_MAP_ARRAY,
GL_TEXTURE_BUFFER,
GL_TEXTURE_2D_MULTISAMPLE or
GL_TEXTURE_2D_MULTISAMPLE_ARRAY.
texture
Specifies the name of a texture.
Description
glBindTexture lets you create or use a named texture. Calling glBindTexture with
target set to
GL_TEXTURE_1D,
GL_TEXTURE_2D,
GL_TEXTURE_3D,
GL_TEXTURE_1D_ARRAY,
GL_TEXTURE_2D_ARRAY,
GL_TEXTURE_RECTANGLE,
GL_TEXTURE_CUBE_MAP,
GL_TEXTURE_CUBE_MAP_ARRAY,
GL_TEXTURE_BUFFER,
GL_TEXTURE_2D_MULTISAMPLE or
GL_TEXTURE_2D_MULTISAMPLE_ARRAY
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 zero is reserved to
represent the default texture for each texture target.
Texture names and the corresponding texture contents are local to
the shared object space of the current GL rendering context;
two rendering contexts share texture names only if they
explicitly enable sharing between contexts through the appropriate GL windows interfaces functions.
You must use glGenTextures to generate a set of new texture names.
When a texture is first bound, it assumes the specified target:
A texture first bound to GL_TEXTURE_1D becomes one-dimensional texture, a
texture first bound to GL_TEXTURE_2D becomes two-dimensional texture, a
texture first bound to GL_TEXTURE_3D becomes three-dimensional texture, a
texture first bound to GL_TEXTURE_1D_ARRAY becomes one-dimensional array texture, a
texture first bound to GL_TEXTURE_2D_ARRAY becomes two-dimensional arary texture, a
texture first bound to GL_TEXTURE_RECTANGLE becomes rectangle texture, a
texture first bound to GL_TEXTURE_CUBE_MAP becomes a cube-mapped texture, a
texture first bound to GL_TEXTURE_CUBE_MAP_ARRAY becomes a cube-mapped array texture, a
texture first bound to GL_TEXTURE_BUFFER becomes a buffer texture, a
texture first bound to GL_TEXTURE_2D_MULTISAMPLE becomes a two-dimensional multisampled texture, and a
texture first bound to GL_TEXTURE_2D_MULTISAMPLE_ARRAY becomes a two-dimensional multisampled array texture.
The state of a one-dimensional texture immediately after it is first bound is equivalent to the state of the
default GL_TEXTURE_1D at GL initialization, and similarly for the other texture types.
While a texture is bound, GL operations on the target to which it is
bound affect the bound texture, and queries of the target to which it
is bound return state from the bound texture.
In effect, the texture targets become aliases for the textures currently
bound to them, and the texture name zero 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 its same original target 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 glTexImage1D, glTexImage2D,
glTexImage3D or another similar function.
Notes
The GL_TEXTURE_2D_MULTISAMPLE and GL_TEXTURE_2D_MULTISAMPLE_ARRAY targets are available
only if the GL version is 3.2 or higher.
Errors
GL_INVALID_ENUM is generated if target is not one of the allowable
values.
GL_INVALID_VALUE is generated if target is not a name returned from
a previous call to glGenTextures.
GL_INVALID_OPERATION is generated if texture was previously created with a target
that doesn't match that of target.
Associated Gets
glGet with argument GL_TEXTURE_BINDING_1D,
GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_1D_ARRAY,
GL_TEXTURE_BINDING_2D_ARRAY, GL_TEXTURE_BINDING_RECTANGLE,
GL_TEXTURE_BINDING_BUFFER, GL_TEXTURE_BINDING_CUBE_MAP, GL_TEXTURE_BINDING_CUBE_MAP,
GL_TEXTURE_BINDING_CUBE_MAP_ARRAY,
GL_TEXTURE_BINDING_2D_MULTISAMPLE,
or GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY.
See Also
glDeleteTextures,
glGenTextures,
glGet,
glGetTexParameter,
glIsTexture,
glTexImage1D,
glTexImage2D,
glTexImage2DMultisample,
glTexImage3D,
glTexImage3DMultisample,
glTexBuffer,
glTexParameter
Copyright
Copyright 1991-2006 Silicon Graphics, Inc.
Copyright 2010-2013 Khronos Group.
This document is licensed under the SGI
Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.