Added example of tetrahedral (volumetric) softbodies

Keep camera distance positive when using mouse zoom
Updated autogenerated msvc projectfiles
Added glut 64 bit support

Glut/GL/glut.h

@@ -52,7 +52,11 @@ typedef unsigned short int wchar_t;
 #pragma comment (lib, "opengl32.lib")  /* link with Microsoft OpenGL lib */
 #pragma comment (lib, "glu32.lib")     /* link with OpenGL Utility lib */
 #pragma message("Note: including lib: glut32.lib\n")
+#ifdef _WIN64
+#pragma comment (lib, "glut64.lib")    /* link with Win32 GLUT lib */
+#else
 #pragma comment (lib, "glut32.lib")    /* link with Win32 GLUT lib */
+#endif
 
 #pragma warning (disable:4244)	/* Disable bogus conversion warnings. */
 #pragma warning (disable:4305)  /* VC++ 5.0 version of above warning. */