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<?xml version="1.0" encoding="UTF-8"?>
<ratified href="EXT_blend_minmax/">
<name>EXT_blend_minmax</name>
<contact> <a href="https://www.khronos.org/webgl/public-mailing-list/">WebGL
working group</a> (public_webgl 'at' khronos.org) </contact>
<contributors>
<contributor>Florian Boesch (pyalot 'at' gmail.com)</contributor>
<contributor>Members of the WebGL working group</contributor>
</contributors>
<number>25</number>
<depends>
<api version="1.0"/>
<core version="2.0" />
</depends>
<overview>
<mirrors href="http://www.khronos.org/registry/gles/extensions/EXT/blend_minmax.txt"
name="EXT_blend_minmax">
</mirrors>
<features>
<feature>
The <code>blendEquation</code> and <code>blendEquationSeparate</code>
entry points are extended to accept <code>MIN_EXT</code> and <code>MAX_EXT</code>
</feature>
</features>
</overview>
<idl xml:space="preserve">
[NoInterfaceObject]
interface EXT_blend_minmax {
const GLenum MIN_EXT = 0x8007;
const GLenum MAX_EXT = 0x8008;
};
</idl>
<samplecode xml:space="preserve">
<pre>
var ext = gl.getExtension('EXT_blend_minmax');
gl.blendEquation(ext.MAX_EXT);
gl.getParameter(gl.BLEND_EQUATION) == ext.MAX_EXT;
</pre>
</samplecode>
<history>
<revision date="2012/12/12">
<change>Initial revision.</change>
</revision>
<revision date="2014/02/12">
<change>Moved to draft.</change>
</revision>
<revision date="2014/05/12">
<change>Removed blendEquationEXT function and the BLEND_EQUATION_EXT and
FUNC_ADD_EXT enums, all of which are already have equivalents in WebGL.</change>
</revision>
<revision date="2014/06/27">
<change>Moved to community approved after discussion on public_webgl list.</change>
</revision>
<revision date="2014/07/15">
<change>Added NoInterfaceObject extended attribute.</change>
</revision>
<revision date="2015/05/29">
<change>Ratified by Khronos Board of Promoters.</change>
</revision>
</history>
</ratified>
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