From 923917301906a7a7408a35fd08826de64049e42b Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 7 Jul 2003 08:01:09 +0000
Subject: [PATCH] Tweaked osg::Geometry's VBO code so that it should not call
 VBO when the extension is not supported.

---
 src/osg/Geometry.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/osg/Geometry.cpp b/src/osg/Geometry.cpp
index 86e3de139..b36ad7577 100644
--- a/src/osg/Geometry.cpp
+++ b/src/osg/Geometry.cpp
@@ -810,6 +810,8 @@ void Geometry::drawImplementation(State& state) const
     DrawVertexAttribMap drawVertexAttribMap;
     
     bool handleVertexAttributes = (!_vertexAttribList.empty() && extensions->isVertexProgramSupported());
+
+    bool usingVertexBufferObjects = _useVertexBufferObjects && state.isVertexBufferObjectSupported();
     
     if (areFastPathsUsed())
     {
@@ -817,7 +819,7 @@ void Geometry::drawImplementation(State& state) const
         //
         // fast path.        
         //
-        if (_useVertexBufferObjects && state.isVertexBufferObjectSupported())
+        if (usingVertexBufferObjects)
         {
             //
             // Vertex Buffer Object path for defining vertex arrays.
@@ -1131,7 +1133,7 @@ void Geometry::drawImplementation(State& state) const
 
         }
 
-        if (_useVertexBufferObjects)
+        if (usingVertexBufferObjects)
         {
             extensions->glBindBuffer(GL_ARRAY_BUFFER_ARB,0);
         }