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.  Note: 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
WebGL EXT_blend_minmax Khronos Ratified Extension Specification 

Browser compatibility




Desktop
Mobile



Chrome
Edge
Firefox
Internet Explorer
Opera
Safari
WebView Android
Chrome Android
Firefox for Android
Opera Android
Safari on IOS
Samsung Internet



EXT_blend_minmax
38
17

47
35-47
Not supported on Windows.

No
25
7
38
38
35
25
9
3.0


See also
 WebGLRenderingContext.getExtension() WebGLRenderingContext.blendEquation() WebGLRenderingContext.blendEquationSeparate() 


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Last modified: Sep 14, 2021, by MDN contributors


    
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