Do not error on empty shader, just treat it as invalid by default. Fixes #15998.

2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gles2/rasterizer_storage_gles2.cpp b/drivers/gles2/rasterizer_storage_gles2.cpp
index 18015f61d4..060988fbea 100644
--- a/drivers/gles2/rasterizer_storage_gles2.cpp
+++ b/drivers/gles2/rasterizer_storage_gles2.cpp
@@ -1125,6 +1125,10 @@ void RasterizerStorageGLES2::_update_shader(Shader *p_shader) const {
 
 	p_shader->uniforms.clear();
 
+	if (p_shader->code == String()) {
+		return; //just invalid, but no error
+	}
+
 	ShaderCompilerGLES2::GeneratedCode gen_code;
 	ShaderCompilerGLES2::IdentifierActions *actions = NULL;
 
diff --git a/drivers/gles3/rasterizer_storage_gles3.cpp b/drivers/gles3/rasterizer_storage_gles3.cpp
index 14084675af..7ca7d8a471 100644
--- a/drivers/gles3/rasterizer_storage_gles3.cpp
+++ b/drivers/gles3/rasterizer_storage_gles3.cpp
@@ -1903,6 +1903,10 @@ 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;