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GLGETMULTISAMPLEFV(3G)                           OpenGL 3.3                           GLGETMULTISAMPLEFV(3G)



NAME
       glGetMultisamplefv - retrieve the location of a sample

C SPECIFICATION
       void glGetMultisamplefv(GLenum pname, GLuint index, GLfloat *val);

PARAMETERS
       pname
           Specifies the sample parameter name.  pname must be GL_SAMPLE_POSITION.

       index
           Specifies the index of the sample whose position to query.

       val
           Specifies the address of an array to receive the position of the sample.

DESCRIPTION
       glGetMultisamplefv queries the location of a given sample.  pname specifies the sample parameter to
       retrieve and must be GL_SAMPLE_POSITION.  index corresponds to the sample for which the location
       should be returned. The sample location is returned as two floating-point values in val[_] and
       val[1], each between 0 and 1, corresponding to the x and y locations respectively in the GL pixel
       space of that sample. (0.5, 0.5) this corresponds to the pixel center.  index must be between zero
       and the value of GL_SAMPLES - 1.

       If the multisample mode does not have fixed sample locations, the returned values may only reflect
       the locations of samples within some pixels.

ERRORS
       GL_INVALID_ENUM is generated if pname is not one GL_SAMPLE_POSITION.


       GL_INVALID_VALUE is generated if index is greater than or equal to the value of GL_SAMPLES.

SEE ALSO
       glGenFramebuffers(), glBindFramebuffer()


COPYRIGHT
       Copyright (C) 2010 Khronos Group. This material may be distributed subject to the terms and
       conditions set forth in the Open Publication License, v 1.0, 8 June 1999.
       http://opencontent.org/openpub/.



OpenGL 3.3                                       03/08/2011                           GLGETMULTISAMPLEFV(3G)