Index for Section 3G

Alphabetical listing for G

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glBindTexture(3G)
NAME
  glBindTexture - bind a named texture to a texturing target

SYNOPSIS
  void glBindTexture(
	  GLenum target,
	  GLuint texture );

PARAMETERS
  target
      Specifies the target to which the texture is bound. Must be either
      GL_TEXTURE_1D, GL_TEXTURE_2D, or GL_TEXTURE_3D.

  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 and texture set to the name of the newtexture 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 display-list
  space (see glXCreateContext()) of the current GL rendering context; two
  rendering contexts share texture names only if they also share display
  lists.

  You may use glGenTextures() to generate a set of new texture names.

  When a texture is first bound, it assumes the dimensionality of its target:
  A texture first bound to GL_TEXTURE_1D becomes one-dimensional, and a
  texture first bound to GL_TEXTURE_2D becomes two-dimensional, and a texture
  first bound to GL_TEXTURE_3D becomes a three-dimensional 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 two-, and three-dimensional textures.

  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. 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 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 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 glTexImage1D(),
  glTexImage2D(), or glTexImage3D(). For additional control over performance,
  use glPrioritizeTextures().

  glBindTexture() is included in display lists.

NOTES
  glBindTexture() is available only if the GL version is 1.1 or greater.

ERRORS
  GL_INVALID_ENUM is generated if target is not one of the allowable values.

  GL_INVALID_OPERATION is generated if texture has a dimensionality that
  doesn't match that of target.

  GL_INVALID_OPERATION is generated if glBindTexture() is executed between
  the execution of glBegin() and the corresponding execution of glEnd().

ASSOCIATED GETS
       glGet() with argument GL_TEXTURE_BINDING_1D
       glGet() with argument GL_TEXTURE_BINDING_2D
       glGet() with argument GL_TEXTURE_BINDING_3D

SEE ALSO
  glAreTexturesResident(3), glDeleteTextures(3), glGenTextures(3), glGet(3),
  glGetTexParameter(3), glIsTexture(3), glPrioritizeTextures(3),
  glTexImage1D(3), glTexImage2D(3), glTexParameter(3)

Index for Section 3G

Alphabetical listing for G

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