1 files changed, 15 insertions, 0 deletions
diff --git a/source/slang/slang-emit-glsl.cpp b/source/slang/slang-emit-glsl.cpp
index 3d3f9687e..a0151133d 100644
--- a/source/slang/slang-emit-glsl.cpp
+++ b/source/slang/slang-emit-glsl.cpp
@@ -2114,6 +2114,21 @@ void GLSLSourceEmitter::handleRequiredCapabilitiesImpl(IRInst* inst)
 
         }
     }
+
+    // The function may have IRRequireGLSLExtensionInst in its body. We also need to look for them.
+    auto func = as<IRFunc>(inst);
+    if (!func)
+        return;
+    auto block = func->getFirstBlock();
+    if (!block)
+        return;
+    for (auto childInst : block->getChildren())
+    {
+        if (auto requireGLSLExt = as<IRRequireGLSLExtension>(childInst))
+        {
+            _requireGLSLExtension(requireGLSLExt->getExtensionName());
+        }
+    }
 }
 
 static Index _getGLSLVersion(ProfileVersion profile)