WebGLRenderingContext.getTexParameter()

The WebGLRenderingContext.getTexParameter() method of the WebGL API returns information about the given texture.

Syntax

any gl.getTexParameter(target, pname);

Parameters

target
A GLenum specifying the binding point (target). Possible values:
  • gl.TEXTURE_2D: A two-dimensional texture.
  • gl.TEXTURE_CUBE_MAP: A cube-mapped texture.
  • When using a WebGL 2 context, the following values are available additionally:
    • gl.TEXTURE_3D: A three-dimensional texture.
    • gl.TEXTURE_2D_ARRAY: A two-dimensional array texture.
pname
A Glenum specifying the information to query. Possible values:
pname Return type Description Possible return values
Available in a WebGL 1 context
gl.TEXTURE_MAG_FILTER GLenum Texture magnification filter gl.LINEAR (default value), gl.NEAREST.
gl.TEXTURE_MIN_FILTER GLenum Texture minification filter gl.LINEAR, gl.NEAREST, gl.NEAREST_MIPMAP_NEAREST, gl.LINEAR_MIPMAP_NEAREST, gl.NEAREST_MIPMAP_LINEAR (default value), gl.LINEAR_MIPMAP_LINEAR.
gl.TEXTURE_WRAP_S GLenum Wrapping function for texture coordinate s gl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.
gl.TEXTURE_WRAP_T GLenum Wrapping function for texture coordinate t gl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.
Additionally available when using the EXT_texture_filter_anisotropic extension
ext.TEXTURE_MAX_ANISOTROPY_EXT GLfloat Maximum anisotropy for a texture Any float values.
Additionally available when using a WebGL 2 context
gl.TEXTURE_BASE_LEVEL GLint Texture mipmap level Any int values.
gl.TEXTURE_COMPARE_FUNC GLenum Comparison function gl.LEQUAL (default value), gl.GEQUAL, gl.LESS, gl.GREATER, gl.EQUAL, gl.NOTEQUAL, gl.ALWAYS, gl.NEVER.
gl.TEXTURE_COMPARE_MODE GLenum Texture comparison mode gl.NONE (default value), gl.COMPARE_REF_TO_TEXTURE.
gl.TEXTURE_IMMUTABLE_FORMAT GLboolean Immutability of the texture format and size true or false.
gl.TEXTURE_IMMUTABLE_LEVELS GLuint ? Any uint values.
gl.TEXTURE_MAX_LEVEL GLint Maximum texture mipmap array level Any int values.
gl.TEXTURE_MAX_LOD GLfloat Texture maximum level-of-detail value Any float values.
gl.TEXTURE_MIN_LOD GLfloat Texture minimum level-of-detail value Any float values.
gl.TEXTURE_WRAP_R GLenum Wrapping function for texture coordinate r gl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.

Return value

Returns the requested texture information (as specified with pname). If an error occurs, null is returned.

Examples

gl.getTexParameter(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER);

Specifications

Specification Status Comment
WebGL 1.0
The definition of 'getTexParameter' in that specification.
Recommendation Initial definition for WebGL.
OpenGL ES 2.0
The definition of 'glGetTexParameter' in that specification.
Standard Man page of the (similar) OpenGL ES 2.0 API.
WebGL 2.0
The definition of 'getTexParameter' in that specification.
Editor's Draft Updated definition for WebGL.
OpenGL ES 3.0
The definition of 'glGetTexParameter' in that specification.
Standard Man page of the (similar) OpenGL ES 3.0 API.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic supportChrome Full support 9Edge Full support 12Firefox Full support 4IE Full support 11Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support 25Edge Mobile Full support YesFirefox Android Full support YesOpera Android Full support 12Safari iOS Full support 8.1Samsung Internet Android Full support Yes
WebGL2Chrome Full support 56Edge No support NoFirefox Full support 51IE No support NoOpera Full support 43Safari No support NoWebView Android Full support 58Chrome Android Full support 58Edge Mobile No support NoFirefox Android Full support 51Opera Android Full support 43Safari iOS No support NoSamsung Internet Android Full support 7.0

Legend

Full support  
Full support
No support  
No support

See also

Document Tags and Contributors

Contributors to this page: fscholz, H1Gdev, teoli
Last updated by: fscholz,