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diff --git a/utils/vrad/macro_texture.h b/utils/vrad/macro_texture.h
new file mode 100644
index 0000000..bfae258
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+++ b/utils/vrad/macro_texture.h
@@ -0,0 +1,24 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef MACRO_TEXTURE_H
+#define MACRO_TEXTURE_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+#include "mathlib/vector.h"
+
+
+// The macro texture looks for a TGA file with the same name as the BSP file and in
+// the same directory. If it finds one, it maps this texture onto the world dimensions
+// (in the worldspawn entity) and masks all lightmaps with it.
+void InitMacroTexture( const char *pBSPFilename );
+void ApplyMacroTextures( int iFace, const Vector &vWorldPos, Vector &outLuxel );
+
+
+#endif // MACRO_TEXTURE_H