---
title: "OES_standard_derivatives | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Interface OES\_standard\_derivatives

The **`OES_standard_derivatives`** extension is part of the WebGL API and adds the GLSL derivative functions dFdx, dFdy, and fwidth.

[MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_standard_derivatives)

interface OES\_standard\_derivatives {  
    [FRAGMENT\_SHADER\_DERIVATIVE\_HINT\_OES](#fragment_shader_derivative_hint_oes): 35723;  
}

##### Index

### Properties[](#properties)

[FRAGMENT\_SHADER\_DERIVATIVE\_HINT\_OES](#fragment_shader_derivative_hint_oes)

## Properties[](#properties-1)

### `Readonly`FRAGMENT\_SHADER\_DERIVATIVE\_HINT\_OES[](#fragment_shader_derivative_hint_oes)

FRAGMENT\_SHADER\_DERIVATIVE\_HINT\_OES: 35723