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GLGETSAMPLERPARAMETE(3G)		  OpenGL Manual 		 GLGETSAMPLERPARAMETE(3G)

NAME
       glGetSamplerParameter - return sampler parameter values

C SPECIFICATION
       void glGetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat * params);

       void glGetSamplerParameteriv(GLuint sampler, GLenum pname, GLint * params);

       void glGetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint * params);

       void glGetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint * params);

PARAMETERS
       sampler
	   Specifies name of the sampler object from which to retrieve parameters.

       pname
	   Specifies the symbolic name of a sampler parameter.	GL_TEXTURE_MAG_FILTER,
	   GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MIN_LOD, GL_TEXTURE_MAX_LOD, GL_TEXTURE_LOD_BIAS,
	   GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T, GL_TEXTURE_WRAP_R, GL_TEXTURE_BORDER_COLOR,
	   GL_TEXTURE_COMPARE_MODE, and GL_TEXTURE_COMPARE_FUNC are accepted.

       params
	   Returns the sampler parameters.

DESCRIPTION
       glGetSamplerParameter returns in params the value or values of the sampler parameter
       specified as pname.  sampler defines the target sampler, and must be the name of an
       existing sampler object, returned from a previous call to glGenSamplers().  pname accepts
       the same symbols as glSamplerParameter(), with the same interpretations:

       GL_TEXTURE_MAG_FILTER
	   Returns the single-valued texture magnification filter, a symbolic constant. The
	   initial value is GL_LINEAR.

       GL_TEXTURE_MIN_FILTER
	   Returns the single-valued texture minification filter, a symbolic constant. The
	   initial value is GL_NEAREST_MIPMAP_LINEAR.

       GL_TEXTURE_MIN_LOD
	   Returns the single-valued texture minimum level-of-detail value. The initial value is
	   -1000.

       GL_TEXTURE_MAX_LOD
	   Returns the single-valued texture maximum level-of-detail value. The initial value is
	   1000.

       GL_TEXTURE_WRAP_S
	   Returns the single-valued wrapping function for texture coordinate s, a symbolic
	   constant. The initial value is GL_REPEAT.

       GL_TEXTURE_WRAP_T
	   Returns the single-valued wrapping function for texture coordinate t, a symbolic
	   constant. The initial value is GL_REPEAT.

       GL_TEXTURE_WRAP_R
	   Returns the single-valued wrapping function for texture coordinate r, a symbolic
	   constant. The initial value is GL_REPEAT.

       GL_TEXTURE_BORDER_COLOR
	   Returns four integer or floating-point numbers that comprise the RGBA color of the
	   texture border. Floating-point values are returned in the range 0 1. Integer values
	   are returned as a linear mapping of the internal floating-point representation such
	   that 1.0 maps to the most positive representable integer and -1.0 maps to the most
	   negative representable integer. The initial value is (0, 0, 0, 0).

       GL_TEXTURE_COMPARE_MODE
	   Returns a single-valued texture comparison mode, a symbolic constant. The initial
	   value is GL_NONE. See glSamplerParameter().

       GL_TEXTURE_COMPARE_FUNC
	   Returns a single-valued texture comparison function, a symbolic constant. The initial
	   value is GL_LEQUAL. See glSamplerParameter().

NOTES
       If an error is generated, no change is made to the contents of params.

       glGetSamplerParameter is available only if the GL version is 3.3 or higher.

ERRORS
       GL_INVALID_VALUE is generated if sampler is not the name of a sampler object returned from
       a previous call to glGenSamplers().

       GL_INVALID_ENUM is generated if pname is not an accepted value.

SEE ALSO
       glSamplerParameter(), glGenSamplers(), glDeleteSamplers(), glSamplerParameter()

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/.

AUTHORS
       opengl.org

opengl.org				    06/10/2014			 GLGETSAMPLERPARAMETE(3G)
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