WebGLRenderingContext: generateMipmap() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The WebGLRenderingContext.generateMipmap() method of the WebGL API generates a set of mipmaps for a WebGLTexture object.

Mipmaps are used to create distance with objects. A higher-resolution mipmap is used for objects that are closer, and a lower-resolution mipmap is used for objects that are farther away. It starts with the resolution of the texture image and halves the resolution until a 1x1 dimension texture image is created.

Syntax

js
generateMipmap(target)

Parameters

target

A GLenum specifying the binding point (target) of the active texture whose mipmaps will be generated. 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.

Return value

None (undefined).

Examples

js
gl.generateMipmap(gl.TEXTURE_2D);

Specifications

Specification
WebGL Specification
# 5.14.8

Browser compatibility

BCD tables only load in the browser

See also