[Plib-cvs] CVS: plib/src/sg sg.cxx,1.28,1.29

[Norman V. <nh...@us...>]

Update of /cvsroot/plib/plib/src/sg
In directory usw-pr-cvs1:/tmp/cvs-serv7722

Modified Files:
	sg.cxx 
Log Message:
Minor optimization for sgSetCoord to multiply by the inverse instead of division

Index: sg.cxx
===================================================================
RCS file: /cvsroot/plib/plib/src/sg/sg.cxx,v
retrieving revision 1.28
retrieving revision 1.29
diff -u -d -r1.28 -r1.29
--- sg.cxx	25 Jan 2002 16:28:00 -0000	1.28
+++ sg.cxx	12 Apr 2002 14:49:26 -0000	1.29
@@ -900,10 +900,11 @@
   }
   else
   {
-    SGfloat sr = _sgClampToUnity ( -mat[0][2] / cp ) ;
-    SGfloat cr = _sgClampToUnity (  mat[2][2] / cp ) ;
-    SGfloat sh = _sgClampToUnity ( -mat[1][0] / cp ) ;
-    SGfloat ch = _sgClampToUnity (  mat[1][1] / cp ) ;
+    cp = SG_ONE / cp ;
+    SGfloat sr = _sgClampToUnity ( -mat[0][2] * cp ) ;
+    SGfloat cr = _sgClampToUnity (  mat[2][2] * cp ) ;
+    SGfloat sh = _sgClampToUnity ( -mat[1][0] * cp ) ;
+    SGfloat ch = _sgClampToUnity (  mat[1][1] * cp ) ;
 	
     if ( (sh == SG_ZERO && ch == SG_ZERO) || (sr == SG_ZERO && cr == SG_ZERO) )
     {