From 586b73adf7d31cec86949560b78a64747568fff2 Mon Sep 17 00:00:00 2001
From: Juan Linietsky <reduzio@gmail.com>
Date: Wed, 14 Nov 2018 10:57:43 -0300
Subject: [PATCH] Do not error on empty shader, just treat it as invalid by
 default. Fixes #15998.

(cherry picked from commit 4d88721e625b300608f54b14e7dd150411e5497b)
---
 drivers/gles3/rasterizer_storage_gles3.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gles3/rasterizer_storage_gles3.cpp b/drivers/gles3/rasterizer_storage_gles3.cpp
index 2b8a0230a68..40380ff7967 100644
--- a/drivers/gles3/rasterizer_storage_gles3.cpp
+++ b/drivers/gles3/rasterizer_storage_gles3.cpp
@@ -1597,6 +1597,10 @@ void RasterizerStorageGLES3::_update_shader(Shader *p_shader) const {
 
 	p_shader->uniforms.clear();
 
+	if (p_shader->code == String()) {
+		return; //just invalid, but no error
+	}
+
 	ShaderCompilerGLES3::GeneratedCode gen_code;
 	ShaderCompilerGLES3::IdentifierActions *actions = NULL;