---
title: "BlendEquationType | 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.

# Type Alias BlendEquationType

BlendEquationType:  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["FUNC\_ADD"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#func_add)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["FUNC\_SUBTRACT"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#func_subtract)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["FUNC\_REVERSE\_SUBTRACT"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#func_reverse_subtract)\]