The WebGLRenderingContext.polygonOffset()
method of the WebGL API specifies the scale factors and units to calculate depth values.
The offset is added before the depth test is performed and before the value is written into the depth buffer.
The WebGLRenderingContext.polygonOffset()
method of the WebGL API specifies the scale factors and units to calculate depth values.
The offset is added before the depth test is performed and before the value is written into the depth buffer.
js
polygonOffset(factor, units)
None (undefined
).
The polygon offset fill is disabled by default. To enable or disable polygon offset fill, use the enable()
and disable()
methods with the argument gl.POLYGON_OFFSET_FILL
.
js
gl.enable(gl.POLYGON_OFFSET_FILL); gl.polygonOffset(2, 3);
To check the current polygon offset factor or units, query the POLYGON_OFFSET_FACTOR
and POLYGON_OFFSET_UNITS
constants.
js
gl.getParameter(gl.POLYGON_OFFSET_FACTOR); // 2 gl.getParameter(gl.POLYGON_OFFSET_UNITS); // 3
Specification |
---|
WebGL Specification # 5.14.3 |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
polygonOffset |
9 | 12 | 4 | 11 | 12 | 5.1 | 4.4.3 | 25 | 4 | 12 | 8 | 1.5 |
© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/polygonOffset