Copy pageCopy pageCopy this page as Markdown for LLMsView as MarkdownView this page as plain textOpen in ClaudeAsk questions about this pageOpen in ChatGPTAsk questions about this pageOn this pageOES_standard_derivativesThe OES_standard_derivatives extension is part of the WebGL API and adds the GLSL derivative functions dFdx, dFdy, and fwidth. MDN Reference Properties FRAGMENT_SHADER_DERIVATIVE_HINT_OES readonly FRAGMENT_SHADER_DERIVATIVE_HINT_OES: 35723;