From f3607134a2a2fa3279976b1edc50e1f2e3b3cd82 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Fri, 10 Nov 2017 17:12:20 +0000
Subject: [PATCH] Fixed handling of GL_TEXTURE_CUBE_MAP when using
 glTextureStorage.

---
 src/osg/Texture.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/osg/Texture.cpp b/src/osg/Texture.cpp
index ea2c9a94d..8802b6cce 100644
--- a/src/osg/Texture.cpp
+++ b/src/osg/Texture.cpp
@@ -2313,7 +2313,17 @@ void Texture::applyTexImage2D_load(State& state, GLenum target, const Image* ima
 
             if(useTexStorrage)
             {
-                extensions->glTexStorage2D(target, numMipmapLevels, sizedInternalFormat, width, height);
+                if (getTextureTarget()==GL_TEXTURE_CUBE_MAP)
+                {
+                    if (target==GL_TEXTURE_CUBE_MAP_POSITIVE_X)
+                    {
+                        extensions->glTexStorage2D(GL_TEXTURE_CUBE_MAP, numMipmapLevels, sizedInternalFormat, width, height);
+                    }
+                }
+                else
+                {
+                    extensions->glTexStorage2D(target, numMipmapLevels, sizedInternalFormat, width, height);
+                }
 
                 if( !compressed_image )
                 {