Web/API/EXT blend minmax

The EXT_blend_minmax extension is part of the WebGL API and extends blending capabilities by adding two new blend equations: the minimum or maximum color components of the source and destination colors.

WebGL extensions are available using the WebGLRenderingContext.getExtension() method. For more information, see also Using Extensions in the WebGL tutorial.

Availability: This extension is only available to WebGL1 contexts. In WebGL2, the functionality of this extension is available on the WebGL2 context by default. The constants in WebGL2 are gl.MIN and gl.MAX.

Constants

This extension adds two new constants, which can be used in WebGLRenderingContext.blendEquation() and WebGLRenderingContext.blendEquationSeparate():

ext.MIN_EXT: Produces the minimum color components of the source and destination colors.
ext.MAX_EXT: Produces the maximum color components of the source and destination colors.

Examples

var ext = gl.getExtension('EXT_blend_minmax');

gl.blendEquation(ext.MIN_EXT);
gl.blendEquation(ext.MAX_EXT);

gl.blendEquationSeparate(ext.MIN_EXT, ext.MAX_EXT);

Specifications

Specification	Status	Comment
EXT_blend_minmaxThe definition of 'EXT_blend_minmax' in that specification.	Recommendation	Initial definition.

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
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`EXT_blend_minmax`	Chrome Full support 38	Edge Full support 17	Firefox Full support 47 Full support 47 No support 35 — 47 Notes' Notes' Not supported on Windows.	IE No support No	Opera Full support 25	Safari Full support 7	WebView Android Full support 38	Chrome Android Full support 38	Firefox Android ?	Opera Android Full support 25	Safari iOS Full support 7	Samsung Internet Android Full support 3.0

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown
See implementation notes.': See implementation notes.