From a41b00358256978763b0cd9ced59d982bbb12b8d Mon Sep 17 00:00:00 2001
From: Stephen Birarda <commit@birarda.com>
Date: Thu, 28 Mar 2013 11:47:23 -0700
Subject: [PATCH] perform proper verification for creation of new sphere

---
 interface/src/Head.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/interface/src/Head.cpp b/interface/src/Head.cpp
index acb52f2189..8cf831d426 100644
--- a/interface/src/Head.cpp
+++ b/interface/src/Head.cpp
@@ -456,7 +456,7 @@ void Head::render(int faceToFace, int isMine)
         glPopMatrix();
         
         // Right Pupil
-        if (!sphere) {
+        if (sphere == NULL) {
             sphere = gluNewQuadric();
             gluQuadricTexture(sphere, GL_TRUE);
             glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);