Note: This feature is available in Web Workers.
The WebGLRenderingContext.getTexParameter() method of the WebGL API returns information about the given texture.
getTexParameter(target, pname)targetA 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.pnameA GLenum specifying the information to query. Possible values:pname Return type Description Possible return values Available in a WebGL 1 context gl.TEXTURE_MAG_FILTERGLenumTexture magnification filter gl.LINEAR (default value), gl.NEAREST.gl.TEXTURE_MIN_FILTERGLenumTexture 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_SGLenumWrapping function for texture coordinate sgl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.gl.TEXTURE_WRAP_TGLenumWrapping function for texture coordinate tgl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.Additionally available when using the EXT_texture_filter_anisotropic extensionext.TEXTURE_MAX_ANISOTROPY_EXTGLfloatMaximum anisotropy for a texture Any float values. Additionally available when using a WebGL 2 context gl.TEXTURE_BASE_LEVELGLintTexture mipmap level Any int values. gl.TEXTURE_COMPARE_FUNCGLenumComparison function gl.LEQUAL (default value), gl.GEQUAL, gl.LESS, gl.GREATER, gl.EQUAL, gl.NOTEQUAL, gl.ALWAYS, gl.NEVER.gl.TEXTURE_COMPARE_MODEGLenumTexture comparison mode gl.NONE (default value), gl.COMPARE_REF_TO_TEXTURE.gl.TEXTURE_IMMUTABLE_FORMATGLbooleanImmutability of the texture format and size true or false. gl.TEXTURE_IMMUTABLE_LEVELSGLuint? Any uint values. gl.TEXTURE_MAX_LEVELGLintMaximum texture mipmap array level Any int values. gl.TEXTURE_MAX_LODGLfloatTexture maximum level-of-detail value Any float values. gl.TEXTURE_MIN_LODGLfloatTexture minimum level-of-detail value Any float values. gl.TEXTURE_WRAP_RGLenumWrapping function for texture coordinate rgl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.
Returns the requested texture information (as specified with pname). If an error occurs, null is returned.
gl.getTexParameter(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER);