From eb7ad158a4ec20fa7576a5254841b025d8500daa Mon Sep 17 00:00:00 2001
From: Mugen87 <michael.herzog@human-interactive.org>
Date: Fri, 1 Mar 2024 11:08:38 +0100
Subject: [PATCH] WebGLProgram: Restore `gl_FragDepth` fallback.

---
 src/renderers/webgl/WebGLProgram.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/renderers/webgl/WebGLProgram.js b/src/renderers/webgl/WebGLProgram.js
index 21bb8f20e13da8..2f948ff8f2db36 100644
--- a/src/renderers/webgl/WebGLProgram.js
+++ b/src/renderers/webgl/WebGLProgram.js
@@ -879,6 +879,7 @@ function WebGLProgram( renderer, cacheKey, parameters, bindingStates ) {
 			'#define varying in',
 			( parameters.glslVersion === GLSL3 ) ? '' : 'layout(location = 0) out highp vec4 pc_fragColor;',
 			( parameters.glslVersion === GLSL3 ) ? '' : '#define gl_FragColor pc_fragColor',
+			'#define gl_FragDepthEXT gl_FragDepth',
 			'#define texture2D texture',
 			'#define textureCube texture',
 			'#define texture2DProj textureProj',