EXT_texture_filter_anisotropic

EXT_texture_filter_anisotropic extension is part of the WebGL API and exposes two constants for anisotropic filtering (AF) .

AF improves the quality of mipmapped texture access when viewing a textured primitive at an oblique angle. Using just mipmapping, these lookups have a tendency to average to grey.

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

Availability: This extension is available to both, WebGL1 and WebGL2 contexts.

常量

ext.MAX_TEXTURE_MAX_ANISOTROPY_EXT
This is the pname argument to the gl.getParameter() call, and it returns the maximum available anisotropy.
ext.TEXTURE_MAX_ANISOTROPY_EXT
This is the pname argument to the gl.getTexParameter() and gl.texParameterf() / gl.texParameteri() calls and sets the desired maximum anisotropy for a texture.

范例

var texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
var ext = (
  gl.getExtension('EXT_texture_filter_anisotropic') ||
  gl.getExtension('MOZ_EXT_texture_filter_anisotropic') ||
  gl.getExtension('WEBKIT_EXT_texture_filter_anisotropic')
);
if (ext){
  var max = gl.getParameter(ext.MAX_TEXTURE_MAX_ANISOTROPY_EXT);
  gl.texParameterf(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, max);
}
					

规范

规范 状态 Comment
EXT_texture_filter_anisotropic
The definition of 'EXT_texture_filter_anisotropic' 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_texture_filter_anisotropic Chrome Yes
Yes
Yes
Prefixed
Prefixed Implemented with the vendor prefix: WEBKIT_
Edge ≤18 Firefox 17 IE ? Opera Yes
Yes
Yes
Prefixed
Prefixed Implemented with the vendor prefix: WEBKIT_
Safari ? WebView Android Yes
Yes
Yes
Prefixed
Prefixed Implemented with the vendor prefix: WEBKIT_
Chrome Android Yes
Yes
Yes
Prefixed
Prefixed Implemented with the vendor prefix: WEBKIT_
Firefox Android ? Opera Android Yes
Yes
Yes
Prefixed
Prefixed Implemented with the vendor prefix: WEBKIT_
Safari iOS ? Samsung Internet Android Yes
Yes
Yes
Prefixed
Prefixed Implemented with the vendor prefix: WEBKIT_

图例

完整支持
完整支持
兼容性未知
兼容性未知
要求使用供应商前缀或不同名称。
要求使用供应商前缀或不同名称。

另请参阅