Zed provides support for GLSL (OpenGL Shading Language) via the GLSL Extension. This extension leverages external tools to offer a richer development experience. Specifically, it incorporates tree-sitter-glsl, a dedicated tree-sitter grammar, for robust and accurate parsing of GLSL code. Additionally, the extension integrates glsl_analyzer as a language server, enabling features such as code completion, diagnostics (errors and warnings), and other language-specific functionalities to enhance code editing and debugging workflows for GLSL developers within the Zed editor. These tools can be found at their respective GitHub repositories.