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Manual Reference Pages  - GLCOLORTABLEPARAMETER (3G)

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glColorTableParameteriv, glColorTableParameterfv - set color lookup table parameters

CONTENTS

C Specification
Parameters
Description
Notes
Errors
Associated Gets
See Also

void glColorTableParameteriv( GLenum target,

                            GLenum pname,
                            const GLint *params )

void glColorTableParameterfv( GLenum target,

                            GLenum pname,
                            const GLfloat *params )

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.

 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.

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

 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.

 glGetColorTableParameter

 glColorTable(3G),  glPixelTransfer(3G)

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