glColorTableParameter man page on OpenBSD

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GLCOLORTABLEPARAMETER(3G)			     GLCOLORTABLEPARAMETER(3G)

NAME
       glColorTableParameteriv, glColorTableParameterfv - set color lookup
       table parameters

C SPECIFICATION
       void glColorTableParameteriv( GLenum target,
	    GLenum pname,
	    const GLint *params )
       void glColorTableParameterfv( GLenum target,
	    GLenum pname,
	    const GLfloat *params )

       delim $$

PARAMETERS
       target The target color table.  Must be GL_COLOR_TABLE,
	      GL_POST_CONVOLUTION_COLOR_TABLE, or
	      GL_POST_COLOR_MATRIX_COLOR_TABLE.

       pname  The symbolic name of a texture color lookup table parameter.
	      Must be one of GL_COLOR_TABLE_SCALE or GL_COLOR_TABLE_BIAS.

       params A pointer to an array where the values of the parameters are
	      stored.

DESCRIPTION
       glColorTableParameter is used to specify the scale factors and bias
       terms applied to color components when they are loaded into a color
       table. target indicates which color table the scale and bias terms
       apply to; it must be set to GL_COLOR_TABLE,
       GL_POST_CONVOLUTION_COLOR_TABLE, or GL_POST_COLOR_MATRIX_COLOR_TABLE.

       pname must be GL_COLOR_TABLE_SCALE to set the scale factors.  In this
       case, params points to an array of four values, which are the scale
       factors for red, green, blue, and alpha, in that order.

       pname must be GL_COLOR_TABLE_BIAS to set the bias terms. In this case,
       params points to an array of four values, which are the bias terms for
       red, green, blue, and alpha, in that order.

       The color tables themselves are specified by calling glColorTable.

NOTES
       glColorTableParameter is available only if GL_ARB_imaging is returned
       from calling glGetString with an argument of GL_EXTENSIONS.

ERRORS
       GL_INVALID_ENUM is generated if target or pname is not an acceptable
       value.

       GL_INVALID_OPERATION is generated if glColorTableParameter is executed
       between the execution of glBegin and the corresponding execution of
       glEnd.

ASSOCIATED GETS
       glGetColorTableParameter

SEE ALSO
       glColorTable(3G), glPixelTransfer(3G)

								 March 1, 2011
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