glGetPixelTexGenParameterSGIS(3G)			      OpenGL Reference

NAME    [Toc]    [Back]

     glGetPixelTexGenParameterfvSGIS, glGetPixelTexGenParameterivSGIS -	return
     pixel texture parameter values

C SPECIFICATION    [Toc]    [Back]

     void glGetPixelTexGenParameterfvSGIS( GLenum pname,
					   GLfloat *params )
     void glGetPixelTexGenParameterivSGIS( GLenum pname,
					   GLint *params )

PARAMETERS    [Toc]    [Back]

     pname   Specifies the symbolic name of the	parameter to be	queried.
	     Accepted values are GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS and
	     GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS.

     params  Returns the pixel texture parameters.

DESCRIPTION    [Toc]    [Back]

     glGetPixelTexGenParameterSGIS returns in params the value or values of a
     pixel texture parameter.  pname accepts the same symbols as
     glPixelTexGenParameterSGIS:

     GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS    [Toc]    [Back]
	       Returns the single-valued source	of red,	green, and blue	color
	       components used to generate s, t, and r texture coordinates
	       when pixel texturing is enabled.	 The initial value is
	       GL_PIXEL_GROUP_COLOR_SGIS.

     GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS    [Toc]    [Back]
	       Returns the single-valued source	of the alpha color component
	       used to generate	q texture coordinates when pixel texturing is
	       enabled.	 The initial value is GL_PIXEL_GROUP_COLOR_SGIS.

ERRORS    [Toc]    [Back]

     GL_INVALID_ENUM is	generated if pname or params is	not an accepted	value.

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


MACHINE	DEPENDENCIES
     glGetPixelTexGenParameterSGIS is supported	only on	Octane2	VPro systems.








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glGetPixelTexGenParameterSGIS(3G)			      OpenGL Reference

NOTES    [Toc]    [Back]

     glGetPixelTexGenParameterSGIS is part of the SGIS_pixel_texture
     extension.

SEE ALSO    [Toc]    [Back]

     glPixelTexGenParameterSGIS


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