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diff --git a/indra/llrender/llcubemaparray.h b/indra/llrender/llcubemaparray.h
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+/** 
+ * @file llcubemaparray.h
+ * @brief LLCubeMap class definition
+ *
+ * $LicenseInfo:firstyear=2022&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2022, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#pragma once
+
+#include "llgl.h"
+
+#include <vector>
+
+class LLVector3;
+
+class LLCubeMapArray : public LLRefCount
+{
+public:
+	LLCubeMapArray();
+
+    static GLenum sTargets[6];
+    
+    // look and up vectors for each cube face (agent space)
+    static LLVector3 sLookVecs[6];
+    static LLVector3 sUpVecs[6];
+
+    // look and up vectors for each cube face (clip space)
+    static LLVector3 sClipToCubeLookVecs[6];
+    static LLVector3 sClipToCubeUpVecs[6];
+
+    // allocate a cube map array 
+    // res - resolution of each cube face
+    // components - number of components per pixel
+    // count - number of cube maps in the array
+    // use_mips - if TRUE, mipmaps will be allocated for this cube map array and anisotropic filtering will be used
+    void allocate(U32 res, U32 components, U32 count, BOOL use_mips = TRUE);
+	void bind(S32 stage);
+    void unbind();
+	
+	GLuint getGLName();
+
+	void destroyGL();
+
+    // get width of cubemaps in array (they're cubes, so this is also the height)
+    U32 getWidth() const { return mWidth; }
+
+    // get number of cubemaps in the array
+    U32 getCount() const { return mCount; }
+
+protected:
+	friend class LLTexUnit;
+	~LLCubeMapArray();
+	LLPointer<LLImageGL> mImage;
+    U32 mWidth = 0;
+    U32 mCount = 0;
+	S32 mTextureStage;
+};