WebGLRenderingContext.cullFace() - Web APIs 编辑

The WebGLRenderingContext.cullFace() method of the WebGL API specifies whether or not front- and/or back-facing polygons can be culled.

Syntax

void gl.cullFace(mode);

Parameters

mode

A GLenum specifying whether front- or back-facing polygons are candidates for culling. The default value is gl.BACK. Possible values are:

• gl.FRONT
• gl.BACK
• gl.FRONT_AND_BACK

Return value

None.

Examples

Polygon culling is disabled by default. To enable or disable culling, use the enable() and disable() methods with the argument gl.CULL_FACE.

gl.enable(gl.CULL_FACE);
gl.cullFace(gl.FRONT_AND_BACK);

To check the current cull face mode, query the CULL_FACE_MODE constant.

gl.getParameter(gl.CULL_FACE_MODE) === gl.FRONT_AND_BACK;
// true

Specifications

Browser compatibility

BCD tables only load in the browser

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.

See also

• WebGLRenderingContext.enable()
• WebGLRenderingContext.frontFace()