This feature is well established and works across many devices and browser versions. It’s been available across browsers since December 2022.
The disableiOES() method of the OES_draw_buffers_indexed WebGL extension enables blending for a particular draw buffer.
disableiOES(target, index)
targetMust be gl.BLEND.
indexAn integer i specifying the draw buffer associated with the constant gl.DRAW_BUFFERi, see WebGL draw buffer constants.
None (undefined).
target is not gl.BLEND, a gl.INVALID_ENUM error is thrown.index is not a valid value, a gl.INVALID_VALUE error is thrown.The following two calls disable blending for the draw buffers gl.DRAW_BUFFER0 and gl.DRAW_BUFFER1.
const ext = gl.getExtension("OES_draw_buffers_indexed");
ext.disableiOES(gl.BLEND, 0);
ext.disableiOES(gl.BLEND, 1);
| Specification |
|---|
| WebGL OES_draw_buffers_indexed Extension Specification> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
disableiOES |
100 | 100 | 108 | 86 | 16 | 100 | 108 | 69 | 16 | 19.0 | 100 | 16 |
© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/OES_draw_buffers_indexed/disableiOES