glActiveTexture — select active texture unit
void glActiveTexture(
|
GLenum texture) ; |
texture
Specifies which texture unit to make active. The number
of texture units is implementation dependent, but must
be at least 80. texture
must be
one of
GL_TEXTURE
i,
where i ranges from zero to the value
of
GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS
minus one. The initial value is
GL_TEXTURE0
.
glActiveTexture
selects which texture unit subsequent texture state calls will
affect. The number of texture units an implementation supports is
implementation dependent, but must be at least 80.
GL_INVALID_ENUM
is generated if
texture
is not one of
GL_TEXTURE
i, where
i ranges from zero to the value of
GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS
minus
one.
glGet with argument GL_ACTIVE_TEXTURE
, or GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS
.
OpenGL Version | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Function / Feature Name | 2.0 | 2.1 | 3.0 | 3.1 | 3.2 | 3.3 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 | 4.5 |
glActiveTexture
|
✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
glGenTextures, glBindTexture, glCompressedTexImage1D, glCompressedTexImage2D, glCompressedTexImage3D, glCompressedTexSubImage1D, glCompressedTexSubImage2D, glCompressedTexSubImage3D, glCopyTexImage1D, glCopyTexImage2D, glCopyTexSubImage1D, glCopyTexSubImage2D, glCopyTexSubImage3D, glDeleteTextures glIsTexture, glTexImage1D, glTexImage2D, glTexImage2DMultisample, glTexImage3D, glTexImage3DMultisample, glTexSubImage1D, glTexSubImage2D, glTexSubImage3D, glTexParameter,
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