EXT_blend_minmax

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 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 .

常量

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.

范例

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);
					

规范

规范 状态 Comment
EXT_blend_minmax
The definition of 'EXT_blend_minmax' in that specification.
Recommendation 初始定义。

浏览器兼容性

更新 GitHub 上的兼容性数据
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 Yes Edge 17 Firefox 33 IE ? Opera Yes Safari ? WebView Android Yes Chrome Android Yes Firefox Android ? Opera Android Yes Safari iOS ? Samsung Internet Android Yes

图例

完整支持
完整支持
兼容性未知
兼容性未知

另请参阅