glBindTexture(3gl)

1GLBINDTEXTURE(3G)                                            GLBINDTEXTURE(3G)
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NAME

6       glBindTexture - bind a named texture to a texturing target
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C SPECIFICATION

10       void glBindTexture( GLenum target,
11                           GLuint texture )
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PARAMETERS

15       target   Specifies  the  target to which the texture is bound.  Must be
16                either GL_TEXTURE_1D, GL_TEXTURE_2D, or GL_TEXTURE_3D.
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18       texture  Specifies the name of a texture.
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DESCRIPTION

21       glBindTexture  lets  you  create  or  use  a  named  texture.   Calling
22       glBindTexture with
23       target  set  to GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D and texture
24       set to the name of the newtexture binds the texture name to the target.
25       When a texture is bound to a target, the previous binding for that tar‐
26       get is automatically broken.
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28       Texture names are unsigned integers. The value zero is reserved to rep‐
29       resent  the default texture for each texture target.  Texture names and
30       the corresponding texture contents are local to the shared display-list
31       space  (see  glXCreateContext) of the current GL rendering context; two
32       rendering contexts share texture names only if they also share  display
33       lists.
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35       You may use glGenTextures to generate a set of new texture names.
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37       When  a  texture  is  first bound, it assumes the dimensionality of its
38       target:  A texture first  bound  to  GL_TEXTURE_1D  becomes  one-dimen‐
39       sional,  and  a texture first bound to GL_TEXTURE_2D becomes two-dimen‐
40       sional, and a texture first bound to  GL_TEXTURE_3D  becomes  a  three-
41       dimensional texture. The state of a one-dimensional texture immediately
42       after it is first bound is equivalent  to  the  state  of  the  default
43       GL_TEXTURE_1D  at GL initialization, and similarly for two-, and three-
44       dimensional textures.
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46       While a texture is bound, GL operations on the target to  which  it  is
47       bound  affect  the bound texture, and queries of the target to which it
48       is bound return state from the bound texture. If texture mapping of the
49       dimensionality of the target to which a texture is bound is active, the
50       bound texture is used.  In effect, the texture targets  become  aliases
51       for  the  textures  currently  bound to them, and the texture name zero
52       refers to the default textures that were bound to them  at  initializa‐
53       tion.
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55       A  texture  binding  created  with glBindTexture remains active until a
56       different texture is bound to the same target, or until the bound  tex‐
57       ture is deleted with glDeleteTextures.
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59       Once  created,  a  named  texture  may be re-bound to the target of the
60       matching dimensionality as often as needed.  It is usually much  faster
61       to  use  glBindTexture  to bind an existing named texture to one of the
62       texture  targets  than  it  is  to  reload  the  texture  image   using
63       glTexImage1D,  glTexImage2D,  or  glTexImage3D.  For additional control
64       over performance, use glPrioritizeTextures.
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66       glBindTexture is included in display lists.
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NOTES

69       glBindTexture is available only if the GL version is 1.1 or greater.
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ERRORS

72       GL_INVALID_ENUM is generated if target is not one of the allowable val‐
73       ues.
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75       GL_INVALID_OPERATION  is generated if texture has a dimensionality that
76       doesn't match that of target.
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78       GL_INVALID_OPERATION is generated if glBindTexture is executed  between
79       the execution of glBegin and the corresponding execution of glEnd.
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ASSOCIATED GETS

82       glGet with argument GL_TEXTURE_BINDING_1D
83       glGet with argument GL_TEXTURE_BINDING_2D
84       glGet with argument GL_TEXTURE_BINDING_3D
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