From db244da1011e13d075e31600a15445ff8bef9522 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Fri, 17 Nov 2023 17:02:37 -0800
Subject: [PATCH] config: note custom-shader requires opengl 4.2 on linux

---
 src/config/Config.zig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/config/Config.zig b/src/config/Config.zig
index 563b9627f..0deada505 100644
--- a/src/config/Config.zig
+++ b/src/config/Config.zig
@@ -606,6 +606,9 @@ keybind: Keybinds = .{},
 /// causing the window to be completely black. If this happens, you can
 /// unset this configuration to disable the shader.
 ///
+/// On Linux, this requires OpenGL 4.2. Ghostty typically only requires
+/// OpenGL 3.3, but custom shaders push that requirement up to 4.2.
+///
 /// The shader API is identical to the ShaderToy API: you specify a `mainImage`
 /// function and the available uniforms match ShaderToy. The iChannel0 uniform
 /// is a texture containing the rendered terminal screen.