X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=Source%2FQuaternions.h;h=f090ef9f0b064d2a8fe471a268a2f6d92637770f;hb=2a35a9f30b5cc6c2f2b06e706910a3fc5f756685;hp=3b1ff4677dbfbb3e75d255bd10b7e844d5ab5d19;hpb=8e94b0e0f79e8fc55ace5699ffe039462d9e155d;p=lugaru.git

diff --git a/Source/Quaternions.h b/Source/Quaternions.h
index 3b1ff46..f090ef9 100644
--- a/Source/Quaternions.h
+++ b/Source/Quaternions.h
@@ -1,22 +1,21 @@
 /*
 Copyright (C) 2003, 2010 - Wolfire Games
+Copyright (C) 2010-2016 - Lugaru contributors (see AUTHORS file)
 
 This file is part of Lugaru.
 
-Lugaru is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License
-as published by the Free Software Foundation; either version 2
-of the License, or (at your option) any later version.
+Lugaru is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+Lugaru is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-See the GNU General Public License for more details.
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+along with Lugaru.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 
@@ -242,25 +241,7 @@ inline void CrossProduct(XYZ P, XYZ Q, XYZ *V)
 
 inline float fast_sqrt (register float arg)
 {
-#if PLATFORM_MACOSX
-    // Can replace with slower return std::sqrt(arg);
-    register float result;
-
-    if (arg == 0.0)
-        return 0.0;
-
-    asm {
-        frsqrte     result, arg         // Calculate Square root
-    }
-
-    // Newton Rhapson iterations.
-    result = result + 0.5 * result * (1.0 - arg * result * result);
-    result = result + 0.5 * result * (1.0 - arg * result * result);
-
-    return result * arg;
-#else
-    return sqrtf( arg);
-#endif
+    return sqrtf(arg);
 }
 
 inline float normaldotproduct(XYZ point1, XYZ point2)