---
title: "StencilOpConstant | 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 StencilOpConstant

StencilOpConstant:  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["KEEP"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#keep)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["ZERO"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#zero)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["REPLACE"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#replace)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["INCR"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#incr)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["INCR\_WRAP"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#incr_wrap)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["DECR"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#decr)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["DECR\_WRAP"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#decr_wrap)\]  
    | [WebGLRenderingContextBase](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/)\[["INVERT"](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.WebGLRenderingContextBase/#invert)\]