Widely Available
WebGL extensions
id: oes-standard-derivatives
OES_standard_derivatives WebGL extension
The
OES_standard_derivatives extension for WebGL 1.0 contexts adds the GLSL derivative functions dFdx, dFdy, and fwidth.
Baseline Status:
Achieved Widely Available on Jan 29, 2018 (Cross-browser Newly Available since Jul 29, 2015).
Desktop Browser Engine Support
Google Chrome
10
Supported
Mozilla Firefox
10
Supported
Apple Safari
8
Supported
Microsoft Edge
12
Supported
Mobile Browser Engine Support
Chrome Android
18
Firefox Android
10
Safari iOS
8
Specifications and References
MDN Browser Compat Data Keys: