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glActiveTexture

select active texture unit

Signature

glActiveTexture( GLenum ( texture ) )-> void
glActiveTexture( texture )

Parameters

VariablesDescription
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 0 ( GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS - 1). The initial value is GL_TEXTURE0 .

Description

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.

Errors

GL_INVALID_ENUM is generated if texture is not one of GL_TEXTURE i , where i ranges from 0 to ( GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS - 1).

Associated Gets

glGet with argument GL_ACTIVE_TEXTURE , or GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS .

See Also

Sample Code References

The following code samples have been found which appear to reference the functions described here. Take care that the code may be old, broken or not even use PyOpenGL.

glActiveTexture
OpenGLContext tests/nehe6_multi.py Lines: 26, 27, 85, 95, 113
OpenGLContext tests/shader_11.py Lines: 250, 256
OpenGLContext tests/pygame_textureatlas.py Lines: 128, 153
OpenGLContext OpenGLContext/scenegraph/shaders.py Lines: 224, 247
OpenGL-Demo PyOpenGL-Demo/NeHe/lesson6-multi.py Lines: 85, 95, 108, 112
{LGPL} VisionEgg VisionEgg/PlatformDependent.py Lines: 226, 226, 227, 244
{LGPL} VisionEgg VisionEgg/Core.py Lines: 1708
{LGPL} VisionEgg VisionEgg/GLTrace.py Lines: 136
Visvis core/baseTexture.py Lines: 212, 246, 254
Previous: glActiveShaderProgram Table of Contents (GL) Next: glAlphaFunc