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glGetSamplerParameter

Name

glGetSamplerParameter — return sampler parameter values

C Specification

void glGetSamplerParameterfv( GLuint sampler,
  GLenum pname,
  GLfloat * params);
 
void glGetSamplerParameteriv( GLuint sampler,
  GLenum pname,
  GLint * 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_WRAP_S, GL_TEXTURE_WRAP_T, GL_TEXTURE_WRAP_R, 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_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.

Errors

GL_INVALID_OPERATION 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.

API Version Support

OpenGL ES API Version
Function Name 2.0 3.0 3.1
glGetSamplerParameterfv -
glGetSamplerParameteriv -
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