glActiveTexture

Name

glActiveTexture â select active texture unit

C Specification

void glActiveTexture( GLenum Â texture);

Parameters

texture: + Specifies which texture unit to make active. The number + of texture units is implementation dependent, but must be at least + two. texture must be one of + GL_TEXTUREi, + where + i ranges from 0 to the larger of (GL_MAX_TEXTURE_COORDS - 1) + and (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 2. +

+ Vertex arrays are client-side GL resources, which are selected by the + glClientActiveTexture routine. +

Notes

+ glActiveTexture is only supported if the GL version is 1.3 or greater, or if + ARB_multitexture is included in the string returned by + glGetString when called with the argument GL_EXTENSIONS. +

Errors

+ GL_INVALID_ENUM is generated if texture is not one of + GL_TEXTUREi, + where i ranges from 0 to the larger of (GL_MAX_TEXTURE_COORDS - 1) + and (GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS - 1). +

Associated Gets

+ glGet with argument GL_ACTIVE_TEXTURE, GL_MAX_TEXTURE_COORDS, or GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS +