WebGL2RenderingContext.getSamplerParameter()

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The WebGL2RenderingContext.getSamplerParameter() method of the WebGL 2 API returns parameter information of a WebGLSampler object.

Syntax

JavaScript
any <var>gl</var>.getSamplerParameter(<var>sampler</var>, <var>pname</var>);

Parameters

sampler
A WebGLSampler object.
pname
A GLenum specifying which information to return. Possible values:
  • gl.TEXTURE_COMPARE_FUNC: Returns a GLenum indicating the texture comparison function.
  • gl.TEXTURE_COMPARE_MODE: Returns a GLenum indicating the texture comparison mode.
  • gl.TEXTURE_MAG_FILTER: Returns a GLenum indicating the texture magnification filter.
  • gl.TEXTURE_MAX_LOD: Returns a GLfloat indicating the maximum level-of-detail value.
  • gl.TEXTURE_MIN_FILTER: Returns a GLenum indicating the texture minification filter
  • gl.TEXTURE_MIN_LOD: Returns a GLfloat indicating the minimum level-of-detail value.
  • gl.TEXTURE_WRAP_R: Returns a GLenum indicating the texture wrapping function for the texture coordinate r.
  • gl.TEXTURE_WRAP_S: Returns a GLenum indicating the texture wrapping function for the texture coordinate s.
  • gl.TEXTURE_WRAP_T: Returns a GLenum indicating the texture wrapping function for the texture coordinate t.

Return value

Depends on the pname parameter, either a GLenum or a GLfloat.

Examples

JavaScript
var sampler = gl.createSampler();
gl.getSamplerParameter(sampler, gl.TEXTURE_COMPARE_FUNC);

Specifications

Specification Status Comment
WebGL 2.0
The definition of 'getSamplerParameter' in that specification.		 Editor's Draft Initial definition.
OpenGL ES 3.0
The definition of 'glGetSamplerParameter' in that specification.		 Standard Man page of the (similar) OpenGL API.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support No support [2] Nightly build [1] No support No support No support
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support No support No support No support No support No support

[1] WebGL 2 is enabled by default in Firefox Nightly. To enable it in a release version of Firefox, set the preference webgl.enable-prototype-webgl2 to true in about:config.

[2] To use an experimental implementation of WebGL 2 in Chrome, you have to start Chrome with the runtime flag --enable-unsafe-es3-apis.

See also

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/webgl2renderingcontext/getsamplerparameter

API Experimental Method Reference WebGL WebGL2