55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
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.\" $XFree86$
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'\" et
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'\"! eqn|tbl | mmdoc
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'\"macro stdmacro
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.ds Vn Version 1.2
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.ds Dt 24 September 1999
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.ds Re Release 1.2.1
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.ds Dp Jan 14 19:46
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.ds Dm 01 activetex
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.ds Xs 15390 4 activetextureARB.gl
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.TH GLACTIVETEXTUREARB 3G
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.SH NAME
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.B "glActiveTextureARB
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\- select active texture unit
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.SH C SPECIFICATION
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void \f3glActiveTextureARB\fP(
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GLenum \fItexture\fP )
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.nf
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.fi
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.EQ
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delim $$
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.EN
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.SH PARAMETERS
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.TP \w'\f2texture\fP\ \ 'u
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\f2texture\fP
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Specifies which texture unit to make active. The number
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of texture units is implementation dependent, but must be at least
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two. \f2texture\fP must be one of \%\f3GL_TEXTURE\fP$i$\f3_ARB\fP, where
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0 \(<= $ i $ < \%\f3GL_MAX_TEXTURE_UNITS_ARB\fP, which is an
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implementation-dependent value. The initial value is \%\f3GL_TEXTURE0_ARB\fP.
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.SH DESCRIPTION
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\%\f3glActiveTextureARB\fP selects which texture unit subsequent texture state calls will
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affect. The number of texture units an implementation supports is
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implementation dependent, but must be at least 2.
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.P
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Vertex arrays are client-side GL resources, which are selected by the
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\%\f3glClientActiveTextureARB\fP routine.
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.SH NOTES
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\%\f3glActiveTextureARB\fP is only supported if \%\f3GL_ARB_multitexture\fP is included in the
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string returned by \%\f3glGetString\fP when called with the argument
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\%\f3GL_EXTENSIONS\fP.
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.SH ERRORS
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\%\f3GL_INVALID_ENUM\fP is generated if \f2texture\fP is not one of
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\%\f3GL_TEXTURE\fP$i$\f3_ARB\fP,
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.br
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where 0 \(<= $ i $ < \%\f3GL_MAX_TEXTURE_UNITS_ARB\fP.
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.SH SEE ALSO
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\%\f3glClientActiveTextureARB(3G)\fP,
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\%\f3glGetIntegerv(3G)\fP,
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\%\f3glMultiTexCoordARB(3G)\fP,
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\%\f3glTexParameter(3G)\fP
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