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
void gl.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.
Examples
gl.generateMipmap(gl.TEXTURE_2D);
Specifications
Specification | Status | Comment |
WebGL 1.0The definition of 'generateMipmap' in that specification. | Recommendation | Initial definition for WebGL. |
OpenGL ES 2.0The definition of 'glGenerateMipmap' in that specification. | Standard | Man page of the (similar) OpenGL ES 2.0 API. |
OpenGL ES 3.0The definition of 'glGenerateMipmap' in that specification. | Standard | Man page of the (similar) OpenGL ES 3.0 API.
Adds: |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
generateMipmap
|
Chrome
Full support 9 |
Edge
Full support 12 |
Firefox
Full support 4 |
IE
Full support 11 |
Opera
Full support 12 |
Safari
Full support 5.1 |
WebView Android
Full support Yes |
Chrome Android
Full support 25 |
Firefox Android
Full support Yes |
Opera Android
Full support 12 |
Safari iOS
Full support 8 |
Samsung Internet Android
Full support 1.5 |
WebGL2
|
Chrome
Full support 56 |
Edge
Full support 79 |
Firefox
Full support 51 |
IE
No support No |
Opera
Full support 43 |
Safari
No support No |
WebView Android
Full support 58 |
Chrome Android
Full support 58 |
Firefox Android
Full support 51 |
Opera Android
Full support 43 |
Safari iOS
No support No |
Samsung Internet Android
Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support
See also
WebGLRenderingContext.createTexture()
WebGLRenderingContext.bindTexture()
WebGLRenderingContext.getTexParameter()
WebGLRenderingContext.texParameterf()
WebGLRenderingContext.texParameteri()
WebGLRenderingContext.generateMipmap() by Mozilla Contributors is licensed under CC-BY-SA 2.5.